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Agostinetti P, Dal Bello S, Dinh F, Ferrara A, Fincato M, Grando L, Mura M, Murari A, Sartori E, Siragusa M, Siviero F, Veronese F. Conceptual design of the Gas Injection and Vacuum System for DTT NBI. Fusion Engineering and Design 2023. [DOI: 10.1016/j.fusengdes.2023.113638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
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2
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Marcuzzi D, Toigo V, Boldrin M, Chitarin G, Dal Bello S, Grando L, Luchetta A, Pasqualotto R, Pavei M, Serianni G, Zanotto L, Agnello R, Agostinetti P, Agostini M, Aprile D, Barbisan M, Battistella M, Berton G, Bigi M, Brombin M, Candela V, Candeloro V, Canton A, Casagrande R, Cavallini C, Cavazzana R, Cordaro L, Cruz N, Dalla Palma M, Dan M, De Lorenzi A, Delogu R, De Muri M, De Nardi M, Denizeau S, Fadone M, Fellin F, Ferro A, Gaio E, Gasparrini C, Gnesotto F, Jain P, La Rosa A, Lopez-Bruna D, Lorenzini R, Maistrello A, Manduchi G, Manfrin S, Marconato N, Mario I, Martini G, Milazzo R, Patton T, Peruzzo S, Pilan N, Pimazzoni A, Poggi C, Pomaro N, Pouradier-Duteil B, Recchia M, Rigoni-Garola A, Rizzetto D, Rizzolo A, Santoro F, Sartori E, Segalini B, Shepherd A, Siragusa M, Sonato P, Sottocornola A, Spada E, Spagnolo S, Spolaore M, Taliercio C, Tinti P, Tomsič P, Trevisan L, Ugoletti M, Valente M, Valisa M, Veronese F, Vignando M, Zaccaria P, Zagorski R, Zaniol B, Zaupa M, Zuin M, Cavenago M, Boilson D, Rotti C, Decamps H, Geli F, Sharma A, Veltri P, Zacks J, Simon M, Paolucci F, Garbuglia A, Gutierrez D, Masiello A, Mico G, Labate C, Readman P, Bragulat E, Bailly-Maitre L, Gomez G, Kouzmenko G, Albajar F, Kashiwagi M, Tobari H, Kojima A, Murayama M, Hatakeyama S, Oshita E, Maejima T, Shibata N, Yamashita Y, Watanabe K, Singh N, Singh M, Dhola H, Fantz U, Heinemann B, Wimmer C, Wünderlich D, Tsumori K, Croci G, Gorini G, Muraro A, Rebai M, Tardocchi M, Giacomelli L, Rigamonti D, Taccogna F, Bruno D, Rutigliano M, Longo S, Deambrosis S, Miorin E, Montagner F, Tonti A, Panin F. Lessons learned after three years of SPIDER operation and the first MITICA integrated tests. Fusion Engineering and Design 2023. [DOI: 10.1016/j.fusengdes.2023.113590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/27/2023]
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3
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Zagórski R, López-Bruna D, Sartori E, Serianni G. 2D simulations of inductive RF heating in the drivers of the SPIDER device. Fusion Engineering and Design 2023. [DOI: 10.1016/j.fusengdes.2023.113427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Papaccio M, Bernardi M, Tonegatti LG, Alberti D, Sartori E, Signorelli M. A case series of fetal lymphatic malformations and a review of the literature. J Neonatal Perinatal Med 2023; 16:747-754. [PMID: 38007678 DOI: 10.3233/npm-230160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2023]
Abstract
Lymphatic malformations are rare benign developmental anomalies of the lymphatic system that can be diagnosed by prenatal ultrasound. Depending on their anatomical site and size, the lesions can cause a variety of aesthetic and functional deficits. Several treatment options are available, the most suitable is still under debate. The experience gained at our Centre and the review of the literature can be useful to improve prenatal counseling, that is challenging due to the heterogeneity of clinical presentation and treatment.
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Affiliation(s)
- M Papaccio
- Department of Obstetrics and Gynecology, University of Brescia, Brescia BS, Italy
| | - M Bernardi
- Department of Obstetrics and Gynecology, University of Brescia, Brescia BS, Italy
| | - L G Tonegatti
- Department of Pediatric Surgery, Spedali Civili Children's Hospital of Brescia, Brescia BS, Italy
| | - D Alberti
- Department of Pediatric Surgery, Spedali Civili Children's Hospital of Brescia, Brescia BS, Italy
| | - E Sartori
- Department of Obstetrics and Gynecology, University of Brescia, Brescia BS, Italy
| | - M Signorelli
- Department of Obstetrics and Gynecology, University of Brescia, Brescia BS, Italy
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5
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Agnello R, Barbisan M, Pasqualotto R, Pimazzoni A, Poggi C, Sartori E, Serianni G. Measurement of stripping losses in the negative ion source SPIDER. Fusion Engineering and Design 2023. [DOI: 10.1016/j.fusengdes.2022.113350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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6
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Serianni G, Sartori E, Agnello R, Agostinetti P, Agostini M, Barbisan M, Brombin M, Candeloro V, Dalla Palma M, Delogu R, De Muri M, Fadone M, Mario I, Patton T, Pimazzoni A, Poggi C, Pouradier-Duteil B, Segalini B, Shepherd A, Spolaore M, Taliercio C, Ugoletti M, Veltri P, Zaniol B, Pasqualotto R. Spatially resolved diagnostics for optimization of large ion beam sources. Rev Sci Instrum 2022; 93:081101. [PMID: 36050050 DOI: 10.1063/5.0084797] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 07/27/2022] [Indexed: 06/15/2023]
Abstract
Giant negative ion sources for neutral beam injectors deliver huge negative ion currents, thanks to their multi-beamlet configuration. As the single-beamlet optics defines the transmission losses along the beamline, the extraction of a similar current for all beamlets is extremely desirable, in order to facilitate the beam source operation (i.e., around perveance match). This Review investigates the correlation between the vertical profile of beam intensity and the vertical profiles of plasma properties at the extraction region of the source, focusing on the influence of increasing cesium injection. Only by the combined use of all available source diagnostics, described in this Review, can beam features on the scale of the non-uniformities be investigated with a sufficient space resolution. At RF power of 50 kW/driver, with intermediate bias currents and a filter field of 2.4 mT, it is found that the central part of the four vertical beam segments exhibits comparable plasma density and beamlet currents; at the edges of the central segments, both the beam and electron density appear to decrease (probably maintaining fixed electron-to-ion ratio); at the bottom of the source, an increase of cesium injection can compensate for the vertical drifts that cause a much higher presence of electrons and a lower amount of negative ions.
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Affiliation(s)
- G Serianni
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - E Sartori
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - R Agnello
- Ecole Polytechnique Fédérale de Lausanne (EPFL), Swiss Plasma Center (SPC), 1015 Lausanne, Switzerland
| | - P Agostinetti
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - M Agostini
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - M Barbisan
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - M Brombin
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - V Candeloro
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - M Dalla Palma
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - R Delogu
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - M De Muri
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - M Fadone
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - I Mario
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - T Patton
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - A Pimazzoni
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - C Poggi
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - B Pouradier-Duteil
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - B Segalini
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - A Shepherd
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - M Spolaore
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - C Taliercio
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - M Ugoletti
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - P Veltri
- ITER Organization, Route de Vinon-sur-Verdon, CS 90 046, F-13067, St. Paul-lez-Durance, France
| | - B Zaniol
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - R Pasqualotto
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
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Sartori E, Brombin M, Laterza B, Zuin M, Cavazzana R, Cervaro V, Degli Agostini F, Fadone M, Fasolo D, Grando L, Jain P, Kisaki M, Maistrello A, Moro G, Pimazzoni A, Poggi C, Segalini B, Shepherd A, Spolaore M, Taliercio C, Tollin M, Ugoletti M, Veltri P, Zamengo A, Serianni G. Development of a set of movable electrostatic probes to characterize the plasma in the ITER neutral beam negative-ion source prototype. Fusion Engineering and Design 2021. [DOI: 10.1016/j.fusengdes.2021.112424] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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8
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Garavaglia S, Baiocchi B, Bruschi A, Busi D, Fanale F, Figini L, Granucci G, Moro A, Platania P, Rispoli N, Romano A, Salvitti A, Sartori E, Schmuck S, Vassallo E. Progress of DTT ECRH system design. Fusion Engineering and Design 2021. [DOI: 10.1016/j.fusengdes.2021.112678] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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9
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Toigo V, Marcuzzi D, Serianni G, Boldrin M, Chitarin G, Bello SD, Grando L, Luchetta A, Pasqualotto R, Zaccaria P, Zanotto L, Agnello R, Agostinetti P, Agostini M, Antoni V, Aprile D, Barbisan M, Battistella M, Berton G, Bigi M, Brombin M, Candeloro V, Canton A, Casagrande R, Cavallini C, Cavazzana R, Cordaro L, Cruz N, Palma MD, Dan M, De Lorenzi A, Delogu R, De Muri M, Denizeau S, Fadone M, Fellin F, Ferro A, Gaio E, Gasparini F, Gasparrini C, Gnesotto F, Jain P, Krastev P, Lopez-Bruna D, Lorenzini R, Maistrello A, Manduchi G, Manfrin S, Marconato N, Martines E, Martini G, Martini S, Milazzo R, Patton T, Pavei M, Peruzzo S, Pilan N, Pimazzoni A, Poggi C, Pomaro N, Pouradier-Duteil B, Recchia M, Rigoni-Garola A, Rizzolo A, Sartori E, Shepherd A, Siragusa M, Sonato P, Sottocornola A, Spada E, Spagnolo S, Spolaore M, Taliercio C, Terranova D, Tinti P, Tomsič P, Trevisan L, Ugoletti M, Valente M, Vignando M, Zagorski R, Zamengo A, Zaniol B, Zaupa M, Zuin M, Cavenago M, Boilson D, Rotti C, Veltri P, Decamps H, Dremel M, Graceffa J, Geli F, Urbani M, Zacks J, Bonicelli T, Paolucci F, Garbuglia A, Agarici G, Gomez G, Gutierrez D, Kouzmenko G, Labate C, Masiello A, Mico G, Moreno JF, Pilard V, Rousseau A, Simon M, Kashiwagi M, Tobari H, Watanabe K, Maejima T, Kojima A, Oshita E, Yamashita Y, Konno S, Singh M, Chakraborty A, Patel H, Singh N, Fantz U, Bonomo F, Cristofaro S, Heinemann B, Kraus W, Wimmer C, Wünderlich D, Fubiani G, Tsumori K, Croci G, Gorini G, McCormack O, Muraro A, Rebai M, Tardocchi M, Giacomelli L, Rigamonti D, Taccogna F, Bruno D, Rutigliano M, D'Arienzo M, Tonti A, Panin F. On the road to ITER NBIs: SPIDER improvement after first operation and MITICA construction progress. Fusion Engineering and Design 2021. [DOI: 10.1016/j.fusengdes.2021.112622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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10
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De Muri M, Rizzolo A, Sartori E, Cristofaro S, Barbisan M, Fadone M, Ravarotto D, Rizzieri R, Capobianco R, Cinetto P, Laterza B, Rossetto F, Rancan M, Armelao L, Taliercio C, Serianni G, Marcuzzi D. SPIDER Cs Ovens functional tests. Fusion Engineering and Design 2021. [DOI: 10.1016/j.fusengdes.2021.112331] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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11
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Siviero F, Caruso L, Mura M, Maccallini E, Manini P, Sartori E, Siragusa M, Hanke S, Day C, Sonato P. Robustness of ZAO based NEG pump solutions for fusion applications. Fusion Engineering and Design 2021. [DOI: 10.1016/j.fusengdes.2021.112306] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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12
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Zanardini C, Saccani B, Franceschetti L, Zatti S, Sartori E, Prefumo F. Retest positive for SARS-CoV-2 RNA in pregnant women recovered from COVID-19. Ultrasound Obstet Gynecol 2020; 56:948-949. [PMID: 33034931 PMCID: PMC7675411 DOI: 10.1002/uog.23144] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 09/23/2020] [Accepted: 09/25/2020] [Indexed: 06/11/2023]
Affiliation(s)
- C. Zanardini
- Division of Obstetrics and Gynecology, ASST Spedali Civili, Department of Clinical and Experimental SciencesUniversity of BresciaBresciaItaly
| | - B. Saccani
- Department of Infectious and Tropical DiseasesASST Spedali CiviliBresciaItaly
| | - L. Franceschetti
- Division of Obstetrics and Gynecology, ASST Spedali Civili, Department of Clinical and Experimental SciencesUniversity of BresciaBresciaItaly
| | - S. Zatti
- Division of Obstetrics and Gynecology, ASST Spedali Civili, Department of Clinical and Experimental SciencesUniversity of BresciaBresciaItaly
| | - E. Sartori
- Division of Obstetrics and Gynecology, ASST Spedali Civili, Department of Clinical and Experimental SciencesUniversity of BresciaBresciaItaly
| | - F. Prefumo
- Division of Obstetrics and Gynecology, ASST Spedali Civili, Department of Clinical and Experimental SciencesUniversity of BresciaBresciaItaly
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Pavei M, Dal Bello S, Gambetta G, Maistrello A, Marcuzzi D, Pimazzoni A, Sartori E, Serianni G, Degli Agostini F, Franchin L, Tollin M. SPIDER plasma grid masking for reducing gas conductance and pressure in the vacuum vessel. Fusion Engineering and Design 2020. [DOI: 10.1016/j.fusengdes.2020.112036] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Poggi C, Sartori E, Zuin M, Brombin M, Cervaro V, Fadone M, Fassina A, Fincato M, Segalini B, Serianni G. Publisher's Note: "CRISP: A compact RF ion source prototype for emittance scanner testing" [Rev. Sci. Instrum. 91, 033314 (2020)]. Rev Sci Instrum 2020; 91:069902. [PMID: 32611007 DOI: 10.1063/5.0015273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Indexed: 06/11/2023]
Affiliation(s)
- C Poggi
- Consorzio RFX (CNR, ENEA, INFN, Università di Padova, Acciaierie Venete S.p.A.), C. Stati Uniti 4, 35127 Padova, Italy
| | - E Sartori
- Consorzio RFX (CNR, ENEA, INFN, Università di Padova, Acciaierie Venete S.p.A.), C. Stati Uniti 4, 35127 Padova, Italy
| | - M Zuin
- Consorzio RFX (CNR, ENEA, INFN, Università di Padova, Acciaierie Venete S.p.A.), C. Stati Uniti 4, 35127 Padova, Italy
| | - M Brombin
- Consorzio RFX (CNR, ENEA, INFN, Università di Padova, Acciaierie Venete S.p.A.), C. Stati Uniti 4, 35127 Padova, Italy
| | - V Cervaro
- Consorzio RFX (CNR, ENEA, INFN, Università di Padova, Acciaierie Venete S.p.A.), C. Stati Uniti 4, 35127 Padova, Italy
| | - M Fadone
- Consorzio RFX (CNR, ENEA, INFN, Università di Padova, Acciaierie Venete S.p.A.), C. Stati Uniti 4, 35127 Padova, Italy
| | - A Fassina
- Consorzio RFX (CNR, ENEA, INFN, Università di Padova, Acciaierie Venete S.p.A.), C. Stati Uniti 4, 35127 Padova, Italy
| | - M Fincato
- Consorzio RFX (CNR, ENEA, INFN, Università di Padova, Acciaierie Venete S.p.A.), C. Stati Uniti 4, 35127 Padova, Italy
| | - B Segalini
- Università degli Studi di Padova, Via 8 Febbraio 1848, 2, 35122 Padova PD, Italy
| | - G Serianni
- Consorzio RFX (CNR, ENEA, INFN, Università di Padova, Acciaierie Venete S.p.A.), C. Stati Uniti 4, 35127 Padova, Italy
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Poggi C, Sartori E, Zuin M, Brombin M, Cervaro V, Fadone M, Fassina A, Fincato M, Segalini B, Serianni G. CRISP: A compact RF ion source prototype for emittance scanner testing. Rev Sci Instrum 2020; 91:033314. [PMID: 32259950 DOI: 10.1063/1.5129641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 02/25/2020] [Indexed: 06/11/2023]
Abstract
A movable Allison type emittance scanner is being developed to characterize the phase-space distribution of the beamlets of spectral phase interferometry for direct electric-field reconstruction, the prototype RF negative ion source of the ITER heating neutral beam injector. To test the electronics and verify the capability of the device to resolve nearby beamlets, a compact RF ion source prototype has been set up, capable of accelerating 1 mA of helium ions up to a voltage of 2 kV. A commercial 100 W RF generator creates a plasma inside a Pyrex tube, with a density between 1015 and 1016 m-3 and an electron temperature up to 15 eV. Three multi-aperture grids in accel-decel configuration extract and accelerate the ions, which are measured with a Faraday cup. We present in this paper the characterization of the ion source and its first operation, showing that it is suitable for the commissioning of the Allison scanner.
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Affiliation(s)
- C Poggi
- Consorzio RFX (CNR, ENEA, INFN, Università di Padova, Acciaierie Venete S.p.A.), C. Stati Uniti 4, 35127 Padova, Italy
| | - E Sartori
- Consorzio RFX (CNR, ENEA, INFN, Università di Padova, Acciaierie Venete S.p.A.), C. Stati Uniti 4, 35127 Padova, Italy
| | - M Zuin
- Consorzio RFX (CNR, ENEA, INFN, Università di Padova, Acciaierie Venete S.p.A.), C. Stati Uniti 4, 35127 Padova, Italy
| | - M Brombin
- Consorzio RFX (CNR, ENEA, INFN, Università di Padova, Acciaierie Venete S.p.A.), C. Stati Uniti 4, 35127 Padova, Italy
| | - V Cervaro
- Consorzio RFX (CNR, ENEA, INFN, Università di Padova, Acciaierie Venete S.p.A.), C. Stati Uniti 4, 35127 Padova, Italy
| | - M Fadone
- Consorzio RFX (CNR, ENEA, INFN, Università di Padova, Acciaierie Venete S.p.A.), C. Stati Uniti 4, 35127 Padova, Italy
| | - A Fassina
- Consorzio RFX (CNR, ENEA, INFN, Università di Padova, Acciaierie Venete S.p.A.), C. Stati Uniti 4, 35127 Padova, Italy
| | - M Fincato
- Consorzio RFX (CNR, ENEA, INFN, Università di Padova, Acciaierie Venete S.p.A.), C. Stati Uniti 4, 35127 Padova, Italy
| | - B Segalini
- Università degli Studi di Padova, Via 8 Febbraio 1848, 2, 35122 Padova PD, Italy
| | - G Serianni
- Consorzio RFX (CNR, ENEA, INFN, Università di Padova, Acciaierie Venete S.p.A.), C. Stati Uniti 4, 35127 Padova, Italy
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16
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Signorelli M, Gregorini M, Platto C, Orabona R, Zambelloni C, Torri F, Franceschetti L, Gambino A, Sartori E. The prognostic value of antenatal ultrasound in cases complicated by fetal ovarian cysts. J Neonatal Perinatal Med 2020; 12:339-343. [PMID: 30883366 DOI: 10.3233/npm-1870] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVE Ovarian cysts are relatively common prenatal findings in female fetuses. The aim of this study is to evaluate the ability of antenatal ultrasound in predicting spontaneous regression or a need for surgery. DESIGN All cases of fetal ovarian cysts treated in our Department between 2007 and 2016 were included. Patients underwent a sonographic monitoring in utero and after birth until spontaneous or surgical resolution. Subjects were divided into two groups according to their postnatal management. Receiver-operating characteristics (ROC) curves were used to test the predictive ability for postnatal surgery of the cyst's mean and maximum diameters; their optimal cut off points were also determined. RESULTS 38 cases of antenatally-detected fetal ovarian cysts were included. 12/38 cases underwent surgery (Group A). 26/38 cases were resolved spontaneously (Group B). Cyst size of those which were surgically excised significantly differed from those that regressed spontaneously. ROC curve pointed to 45 mm and 47 mm as optimal cut off points for the mean and the maximum cystic diameters, respectively. CONCLUSIONS Cyst size and echo-structure seemed good predictors for prognosis after birth. The optimal cut off points of the cysts mean and maximum diameters in predicting postnatal surgery have been identified as 45 mm and 47 mm, respectively.
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Affiliation(s)
- M Signorelli
- Department of Obstetrics and Gynecology, University of Brescia, Brescia BS, Italy
| | - M Gregorini
- Department of Obstetrics and Gynecology, University of Brescia, Brescia BS, Italy
| | - C Platto
- Department of Obstetrics and Gynecology, University of Brescia, Brescia BS, Italy
| | - R Orabona
- Department of Obstetrics and Gynecology, University of Brescia, Brescia BS, Italy
| | - C Zambelloni
- Department of Neonatology, University of Brescia, Brescia BS, Italy
| | - F Torri
- Department of Pediatric Surgery, Spedali Civili Children's Hospital of Bescia, Brescia BS, Italy
| | - L Franceschetti
- Department of Obstetrics and Gynecology, University of Brescia, Brescia BS, Italy
| | - A Gambino
- Department of Obstetrics and Gynecology, University of Brescia, Brescia BS, Italy
| | - E Sartori
- Department of Obstetrics and Gynecology, University of Brescia, Brescia BS, Italy
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Siragusa M, Sartori E, Mura M, Siviero F. Numerical simulation of experimental tests performed on ZAO ® non-evaporable-getter pump designed for neutral beam injector applications. Rev Sci Instrum 2020; 91:023501. [PMID: 32113429 DOI: 10.1063/1.5128662] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2019] [Accepted: 01/14/2020] [Indexed: 06/10/2023]
Abstract
Vacuum systems of neutral beam injectors have very demanding requirements in terms of pumping speed, throughput, and capacity. Due to their high affinity to hydrogenic species, porous sintered Non-Evaporable Getters (NEG) are a possible candidate for deployment in giant hydrogen ion sources and neutral beam injectors for fusion. This paper presents the numerical interpretation of experimental tests on a recently developed NEG cartridge, that is part of a modular pump under development for neutral beam injectors. The cartridge is composed of six stacks of ZAO® porous sintered NEG disks and a heater. It was tested under hydrogen loads relevant for neutral beam injectors, namely, at constant pressure or constant flow, such that the hydrogen pressure was in the range of 20 mPa-40 mPa. The result of the sorption test was reproduced by a three dimensional flow simulation in molecular regime to determine the actual pumping speed, the effective sticking coefficient, and the uniformity of the gas load on the various NEG disks. The procedure developed and the results obtained provide the basic understanding for interpreting the large-scale tests on the modular pump, consisting of 34 of these cartridges.
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Affiliation(s)
- M Siragusa
- Consorzio RFX, Corso Stati Uniti 4, 35127 Padova (PD), Italy
| | - E Sartori
- Consorzio RFX, Corso Stati Uniti 4, 35127 Padova (PD), Italy
| | - M Mura
- SAES Getters S.p.A., Viale Italia 77, 20020 Lainate (MI), Italy
| | - F Siviero
- SAES Getters S.p.A., Viale Italia 77, 20020 Lainate (MI), Italy
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18
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Sartori E, Fincato M, Siragusa M, Pimazzoni A, Grando L, Tollin M, Serianni G. Simulation and measurement of rarefied gas flow and neutral density profiles through a large multiaperture multigrid negative ion accelerator. Fusion Engineering and Design 2020. [DOI: 10.1016/j.fusengdes.2019.111398] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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19
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Serianni G, Toigo V, Bigi M, Boldrin M, Chitarin G, Dal Bello S, Grando L, Luchetta A, Marcuzzi D, Pasqualotto R, Pomaro N, Zaccaria P, Zanotto L, Agostinetti P, Agostini M, Antoni V, Aprile D, Barbisan M, Battistella M, Brombin M, Canton A, Cavazzana R, Dalla Palma M, Dan M, Delogu R, De Lorenzi A, De Muri M, Denizeau S, Fadone M, Fellin F, Ferro A, Gaio E, Gambetta G, Gasparini F, Gnesotto F, Jain P, Maistrello A, Manduchi G, Manfrin S, Marchiori G, Marconato N, Moresco M, Patton T, Pavei M, Peruzzo S, Pilan N, Pimazzoni A, Piovan R, Poggi C, Recchia M, Rigoni A, Rizzolo A, Rostagni G, Sartori E, Siragusa M, Sonato P, Spada E, Spagnolo S, Spolaore M, Taliercio C, Tinti P, Ugoletti M, Valente M, Zamengo A, Zaniol B, Zaupa M, Cavenago M, Boilson D, Rotti C, Veltri P, Chareyre J, Decamps H, Dremel M, Graceffa J, Geli F, Schunke B, Svensson L, Urbani M, Bonicelli T, Agarici G, Garbuglia A, Masiello A, Paolucci F, Simon M, Bailly-Maitre L, Bragulat E, Gomez G, Gutierrez D, Labate C, Mico G, Moreno JF, Pilard V, Kouzmenko G, Rousseau A, Chakraborty A, Baruah U, Patel H, Singh NP, Patel A, Dhola H, Raval B, Cristofaro S, Fantz U, Heinemann B, Kraus W, Kashiwagi M, Tobari H. First operation in SPIDER and the path to complete MITICA. Rev Sci Instrum 2020; 91:023510. [PMID: 32113382 DOI: 10.1063/1.5133076] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Accepted: 01/22/2020] [Indexed: 06/10/2023]
Abstract
The requirements of ITER neutral beam injectors (1 MeV, 40 A negative deuterium ion current for 1 h) have never been simultaneously attained; therefore, a dedicated Neutral Beam Test Facility (NBTF) was set up at Consorzio RFX (Padova, Italy). The NBTF includes two experiments: SPIDER (Source for the Production of Ions of Deuterium Extracted from Rf plasma), the full-scale prototype of the source of ITER injectors, with a 100 keV accelerator, to investigate and optimize the properties of the ion source; and MITICA, the full-scale prototype of the entire injector, devoted to the issues related to the accelerator, including voltage holding at low gas pressure. The present paper gives an account of the status of the procurements, of the timeline, and of the voltage holding tests and experiments for MITICA. As for SPIDER, the first year of operation is described, regarding the solution of some issues connected with the radiofrequency power, the source operation, and the characterization of the first negative ion beam.
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Affiliation(s)
- G Serianni
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - V Toigo
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - M Bigi
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - M Boldrin
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - G Chitarin
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - S Dal Bello
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - L Grando
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - A Luchetta
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - D Marcuzzi
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - R Pasqualotto
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - N Pomaro
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - P Zaccaria
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - L Zanotto
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - P Agostinetti
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - M Agostini
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - V Antoni
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - D Aprile
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - M Barbisan
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - M Battistella
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - M Brombin
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - A Canton
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - R Cavazzana
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - M Dalla Palma
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - M Dan
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - R Delogu
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - A De Lorenzi
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - M De Muri
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - S Denizeau
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - M Fadone
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - F Fellin
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - A Ferro
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - E Gaio
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - G Gambetta
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - F Gasparini
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - F Gnesotto
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - P Jain
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - A Maistrello
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - G Manduchi
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - S Manfrin
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - G Marchiori
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - N Marconato
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - M Moresco
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - T Patton
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - M Pavei
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - S Peruzzo
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - N Pilan
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - A Pimazzoni
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - R Piovan
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - C Poggi
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - M Recchia
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - A Rigoni
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - A Rizzolo
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - G Rostagni
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - E Sartori
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - M Siragusa
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - P Sonato
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - E Spada
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - S Spagnolo
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - M Spolaore
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - C Taliercio
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - P Tinti
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - M Ugoletti
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - M Valente
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - A Zamengo
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - B Zaniol
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - M Zaupa
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - M Cavenago
- INFN-Laboratori Nazionali di Legnaro (LNL), v.le dell'Università 2, I-35020 Legnaro, PD, Italy
| | - D Boilson
- ITER Organization, Route de Vinon-sur-Verdon, CS 90 046, F-13067 St. Paul-lez-Durance, France
| | - C Rotti
- ITER Organization, Route de Vinon-sur-Verdon, CS 90 046, F-13067 St. Paul-lez-Durance, France
| | - P Veltri
- ITER Organization, Route de Vinon-sur-Verdon, CS 90 046, F-13067 St. Paul-lez-Durance, France
| | - J Chareyre
- ITER Organization, Route de Vinon-sur-Verdon, CS 90 046, F-13067 St. Paul-lez-Durance, France
| | - H Decamps
- ITER Organization, Route de Vinon-sur-Verdon, CS 90 046, F-13067 St. Paul-lez-Durance, France
| | - M Dremel
- ITER Organization, Route de Vinon-sur-Verdon, CS 90 046, F-13067 St. Paul-lez-Durance, France
| | - J Graceffa
- ITER Organization, Route de Vinon-sur-Verdon, CS 90 046, F-13067 St. Paul-lez-Durance, France
| | - F Geli
- ITER Organization, Route de Vinon-sur-Verdon, CS 90 046, F-13067 St. Paul-lez-Durance, France
| | - B Schunke
- ITER Organization, Route de Vinon-sur-Verdon, CS 90 046, F-13067 St. Paul-lez-Durance, France
| | - L Svensson
- ITER Organization, Route de Vinon-sur-Verdon, CS 90 046, F-13067 St. Paul-lez-Durance, France
| | - M Urbani
- ITER Organization, Route de Vinon-sur-Verdon, CS 90 046, F-13067 St. Paul-lez-Durance, France
| | - T Bonicelli
- Fusion for Energy, C/o Josep Pla 2, E-08019 Barcelona, Spain
| | - G Agarici
- Fusion for Energy, C/o Josep Pla 2, E-08019 Barcelona, Spain
| | - A Garbuglia
- Fusion for Energy, C/o Josep Pla 2, E-08019 Barcelona, Spain
| | - A Masiello
- Fusion for Energy, C/o Josep Pla 2, E-08019 Barcelona, Spain
| | - F Paolucci
- Fusion for Energy, C/o Josep Pla 2, E-08019 Barcelona, Spain
| | - M Simon
- Fusion for Energy, C/o Josep Pla 2, E-08019 Barcelona, Spain
| | - L Bailly-Maitre
- Fusion for Energy, C/o Josep Pla 2, E-08019 Barcelona, Spain
| | - E Bragulat
- Fusion for Energy, C/o Josep Pla 2, E-08019 Barcelona, Spain
| | - G Gomez
- Fusion for Energy, C/o Josep Pla 2, E-08019 Barcelona, Spain
| | - D Gutierrez
- Fusion for Energy, C/o Josep Pla 2, E-08019 Barcelona, Spain
| | - C Labate
- Fusion for Energy, C/o Josep Pla 2, E-08019 Barcelona, Spain
| | - G Mico
- Fusion for Energy, C/o Josep Pla 2, E-08019 Barcelona, Spain
| | - J F Moreno
- Fusion for Energy, C/o Josep Pla 2, E-08019 Barcelona, Spain
| | - V Pilard
- Fusion for Energy, C/o Josep Pla 2, E-08019 Barcelona, Spain
| | - G Kouzmenko
- Fusion for Energy, C/o Josep Pla 2, E-08019 Barcelona, Spain
| | - A Rousseau
- Fusion for Energy, C/o Josep Pla 2, E-08019 Barcelona, Spain
| | - A Chakraborty
- ITER-India, Institute for Plasma Research, Nr. Indira Bridge, Bhat Village, Gandhinagar, Gujarat 382428, India
| | - U Baruah
- ITER-India, Institute for Plasma Research, Nr. Indira Bridge, Bhat Village, Gandhinagar, Gujarat 382428, India
| | - H Patel
- ITER-India, Institute for Plasma Research, Nr. Indira Bridge, Bhat Village, Gandhinagar, Gujarat 382428, India
| | - N P Singh
- ITER-India, Institute for Plasma Research, Nr. Indira Bridge, Bhat Village, Gandhinagar, Gujarat 382428, India
| | - A Patel
- ITER-India, Institute for Plasma Research, Nr. Indira Bridge, Bhat Village, Gandhinagar, Gujarat 382428, India
| | - H Dhola
- ITER-India, Institute for Plasma Research, Nr. Indira Bridge, Bhat Village, Gandhinagar, Gujarat 382428, India
| | - B Raval
- ITER-India, Institute for Plasma Research, Nr. Indira Bridge, Bhat Village, Gandhinagar, Gujarat 382428, India
| | - S Cristofaro
- IPP, Max-Planck-Institut für Plasmaphysik, Boltzmannstraße 2, D-85748 Garching bei München, Germany
| | - U Fantz
- IPP, Max-Planck-Institut für Plasmaphysik, Boltzmannstraße 2, D-85748 Garching bei München, Germany
| | - B Heinemann
- IPP, Max-Planck-Institut für Plasmaphysik, Boltzmannstraße 2, D-85748 Garching bei München, Germany
| | - W Kraus
- IPP, Max-Planck-Institut für Plasmaphysik, Boltzmannstraße 2, D-85748 Garching bei München, Germany
| | - M Kashiwagi
- National Institutes for Quantum and Radiological Science and Technology, 801-1 Mukoyama, Naka, Ibaraki-ken 311-0193, Japan
| | - H Tobari
- National Institutes for Quantum and Radiological Science and Technology, 801-1 Mukoyama, Naka, Ibaraki-ken 311-0193, Japan
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Sartori E, Candeloro V, Serianni G. Analysis of current-voltage characteristics for Langmuir probes immersed in an ion beam. Rev Sci Instrum 2020; 91:023504. [PMID: 32113394 DOI: 10.1063/1.5128669] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Accepted: 01/13/2020] [Indexed: 06/10/2023]
Abstract
Movable electrical probes were used to diagnose the beam flux profile and potential of ion beams since the early 1960s. Experimental measurements of beam plasmas can provide essential data related to the space charge neutralization, but the current-voltage characteristics obtained from such electrical probes are dominated by beam ion impact and ion-induced secondary emission. In this work, we present an analysis of the Langmuir characteristics obtained in a negative ion beam. We identify and discuss separately the contributions to the collected current given by secondary plasma ions and electrons, stripped electrons, beam ions, and ion-induced secondary electron emission. We present the beam plasma parameters obtained at different beam energies in NIO1.
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Affiliation(s)
- E Sartori
- Consorzio RFX, Corso Stati Uniti 4, 35127 Padova (PD), Italy
| | - V Candeloro
- Università degli Studi di Padova, Via 8 Febbraio 2, I-35122 Padova (PD), Italy
| | - G Serianni
- Consorzio RFX, Corso Stati Uniti 4, 35127 Padova (PD), Italy
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Variale V, Valentino V, Cavenago M, Baltador C, Sartori E, Serianni G. Beam energy recovery for fusion and collector design for tests on compact sources. Rev Sci Instrum 2020; 91:013516. [PMID: 32012581 DOI: 10.1063/1.5128668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 12/05/2019] [Indexed: 06/10/2023]
Abstract
The next fusion project DEMO, which will be the evolution of the experimental fusion reactor [International Tokamak Experimental Reactor (ITER)], would require a high efficient energy production. As in ITER, DEMO will use fast Neutral Beam (NB) injectors to increase the plasma temperature needed for the fusion reaction. A way to recover the electric energy production efficiency in DEMO could be the beam energy recovery in the NB production, which is produced by a D- beam, neutralized by a gas cell with 60% efficiency. A compact energy recovery device with an axisymmetric cylindrical ion collector that uses only decelerating electric fields combined with the beam space charge effect has been recently proposed. It can be used for a test on the beam of the NIO1 (Negative Ion Optimization 1) source, a compact ion source (scaled down from ITER size sources) that has been developed at INFN-LNL and Consorzio RFX (Padua). The detailed collector design to be used on one of the beamlets of the NIO1 source within typical space limitation is presented and discussed here. Furthermore, a preliminary trajectory simulation for a beam with a rectangular geometry similar to the beam used in ITER to verify the beam recovery for a nonaxial symmetric geometry is also shown.
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Affiliation(s)
- V Variale
- INFN-Ba, Via Orabona 4, I-70126 Bari, Italy
| | | | - M Cavenago
- INFN-LNL, Viale dell'università 2, I-35020 Legnaro(PD), Italy
| | - C Baltador
- INFN-LNL, Viale dell'università 2, I-35020 Legnaro(PD), Italy
| | - E Sartori
- Consorzio RFX, Corso Stati Uniti 4, I-35127 Padova, Italy
| | - G Serianni
- Consorzio RFX, Corso Stati Uniti 4, I-35127 Padova, Italy
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Cavenago M, Barbisan M, Delogu R, Pimazzoni A, Poggi C, Ugoletti M, Agostini M, Antoni V, Baltador C, Cervaro V, De Muri M, Giora D, Jain P, Laterza B, Maero G, Maniero M, Martini D, Minarello A, Ravarotto D, Recchia D, Rizzolo A, Romé M, Sartori E, Sattin M, Serianni G, Taccogna F, Valentino V, Variale V, Veltri P. Beam and installation improvements of the NIO1 ion source. Rev Sci Instrum 2020; 91:013316. [PMID: 32012575 DOI: 10.1063/1.5128658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Accepted: 12/18/2019] [Indexed: 06/10/2023]
Abstract
The NIO1 (Negative Ion Optimization phase 1) source can provide continuous beam operation, which is convenient for systematic parameter and equipment studies. Even in the pure volume production regime, the source yield was found to depend on conditioning procedures. Magnetic configuration tests continued adding magnets to the existing setup; the filter field component Bx has been progressively extended to span the -12 to 5 mT range, and as a trend, source performances improved with |Bx|. The progress of camera beam diagnostics and of the quality of the volume-produced H- beam is also shown. The status, off-line results, and reliability of a first NIO1 cesium oven are discussed; other upgrades in preparation (cavity ring down spectrometer, the end calorimeter, and conceptual tests of the energy recovery system) are also listed.
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Affiliation(s)
- M Cavenago
- INFN-LNL, v.le dell'Universitá 2, 35020 Legnaro (PD), Italy
| | - M Barbisan
- Consorzio RFX, c. Stati Uniti 4, 35127 Padova, Italy
| | - R Delogu
- Consorzio RFX, c. Stati Uniti 4, 35127 Padova, Italy
| | - A Pimazzoni
- INFN-LNL, v.le dell'Universitá 2, 35020 Legnaro (PD), Italy
| | - C Poggi
- Consorzio RFX, c. Stati Uniti 4, 35127 Padova, Italy
| | - M Ugoletti
- Consorzio RFX, c. Stati Uniti 4, 35127 Padova, Italy
| | - M Agostini
- Consorzio RFX, c. Stati Uniti 4, 35127 Padova, Italy
| | - V Antoni
- CNR-Istituto Scienza e Tecnologia dei Plasmi, c. Stati Uniti 4, 35127 Padova, Italy
| | - C Baltador
- INFN-LNL, v.le dell'Universitá 2, 35020 Legnaro (PD), Italy
| | - V Cervaro
- Consorzio RFX, c. Stati Uniti 4, 35127 Padova, Italy
| | - M De Muri
- Consorzio RFX, c. Stati Uniti 4, 35127 Padova, Italy
| | - D Giora
- INFN-LNL, v.le dell'Universitá 2, 35020 Legnaro (PD), Italy
| | - P Jain
- Consorzio RFX, c. Stati Uniti 4, 35127 Padova, Italy
| | - B Laterza
- Consorzio RFX, c. Stati Uniti 4, 35127 Padova, Italy
| | - G Maero
- Univ. Milano and INFN-MI, v. Celoria 16, 20133 Milano, Italy
| | - M Maniero
- Consorzio RFX, c. Stati Uniti 4, 35127 Padova, Italy
| | - D Martini
- INFN-LNL, v.le dell'Universitá 2, 35020 Legnaro (PD), Italy
| | - A Minarello
- INFN-LNL, v.le dell'Universitá 2, 35020 Legnaro (PD), Italy
| | - D Ravarotto
- Consorzio RFX, c. Stati Uniti 4, 35127 Padova, Italy
| | - D Recchia
- Consorzio RFX, c. Stati Uniti 4, 35127 Padova, Italy
| | - A Rizzolo
- Consorzio RFX, c. Stati Uniti 4, 35127 Padova, Italy
| | - M Romé
- Univ. Milano and INFN-MI, v. Celoria 16, 20133 Milano, Italy
| | - E Sartori
- Consorzio RFX, c. Stati Uniti 4, 35127 Padova, Italy
| | - M Sattin
- INFN-LNL, v.le dell'Universitá 2, 35020 Legnaro (PD), Italy
| | - G Serianni
- Consorzio RFX, c. Stati Uniti 4, 35127 Padova, Italy
| | - F Taccogna
- CNR-Istituto Scienza e Tecnologia dei Plasmi, c. Stati Uniti 4, 35127 Padova, Italy
| | | | - V Variale
- INFN-BA, v. Orabona 4, 70126 Bari, Italy
| | - P Veltri
- ITER-Organization, 13067 St. Paul Lez Durance Cedex, France
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Siragusa M, Sartori E, Bonomo F, Heinemann B, Orozco G, Serianni G. Simulation of the gas density distribution in the accelerator of the ELISE test facility. Rev Sci Instrum 2020; 91:013511. [PMID: 32012610 DOI: 10.1063/1.5129221] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 12/28/2019] [Indexed: 06/10/2023]
Abstract
In multiaperture electrostatic accelerators of negative ion sources, the plasma discharge is sustained by injecting gas in the plasma source, in a dynamic equilibrium with the gas flowing out through the accelerator. In this work, we present a three-dimensional numerical simulation of the gas flow inside the accelerator system of the large negative ion source ELISE at Max-Planck-Institut für Plasmaphysik Garching. ELISE has 640 apertures per electrode and lateral gaps between the electrode support structures that also contribute to the total gas conductance. Assuming molecular regime, we estimated the gas conductance, the gas density profile along the path of the ion beams from upstream of the plasma grid to downstream of the ground grid, and the transverse nonuniformities in the accelerator. The simulation included the most relevant geometrical features, while the results are compared to analytical results.
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Affiliation(s)
- M Siragusa
- Consorzio RFX, Corso Stati Uniti 4, 35127 Padova (PD), Italy
| | - E Sartori
- Consorzio RFX, Corso Stati Uniti 4, 35127 Padova (PD), Italy
| | - F Bonomo
- Max-Planck-Institut für Plasmaphysik, Boltzmannstraße 2, 85748 Garching, Germany
| | - B Heinemann
- Max-Planck-Institut für Plasmaphysik, Boltzmannstraße 2, 85748 Garching, Germany
| | - G Orozco
- Max-Planck-Institut für Plasmaphysik, Boltzmannstraße 2, 85748 Garching, Germany
| | - G Serianni
- Consorzio RFX, Corso Stati Uniti 4, 35127 Padova (PD), Italy
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Fadone M, Barbisan M, Cristofaro S, De Muri M, Serianni G, Sartori E. Interpreting the dynamic equilibrium during evaporation in a cesium environment. Rev Sci Instrum 2020; 91:013332. [PMID: 32012546 DOI: 10.1063/1.5129666] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 01/07/2020] [Indexed: 06/10/2023]
Abstract
The cesium ovens for the prototype source of the ITER neutral beam injectors are currently tested in the CAesium Test Stand (CATS) facility, with a background pressure of 10-6 mbar. Different diagnostics are here installed: two Langmuir-Taylor detectors allow us to determine the Cs vapour evaporation rate from the oven and the Cs density at different positions in the vacuum chamber; and laser absorption spectroscopy is used to measure the density integrated over a line of sight and a quartz crystal microbalance to detect the cesium mass deposited in time over a surface. In this paper, we present a model to describe the dynamic equilibrium in the evaporation chamber of CATS with the first oven tested in order to gain information about the Cs sticking coefficient at the walls. The model hence includes sticking and energy accommodation of the Cs atoms to the walls, calculates the flux density at the surfaces, and provides the Cs atom density at any location in the volume. By this model, we simulate the Cs evaporation and the equilibrium density, comparing the modeled results with the experimental data. As a result, a sticking coefficient of 2% is obtained.
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Affiliation(s)
- M Fadone
- Consorzio RFX, Associazione EURATOM-ENEA sulla fusione, c.so Stati Uniti 4, 35127 Padova, Italy
| | - M Barbisan
- Consorzio RFX, Associazione EURATOM-ENEA sulla fusione, c.so Stati Uniti 4, 35127 Padova, Italy
| | - S Cristofaro
- Max-Planck-Institut für Plasmaphysik, Boltzmannstr. 2, 85748 Garching, Germany
| | - M De Muri
- Consorzio RFX, Associazione EURATOM-ENEA sulla fusione, c.so Stati Uniti 4, 35127 Padova, Italy
| | - G Serianni
- Consorzio RFX, Associazione EURATOM-ENEA sulla fusione, c.so Stati Uniti 4, 35127 Padova, Italy
| | - E Sartori
- Consorzio RFX, Associazione EURATOM-ENEA sulla fusione, c.so Stati Uniti 4, 35127 Padova, Italy
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Prefumo F, Petrilli G, Palumbo G, Sartori E, Izzi C, Pinelli L. Prenatal ultrasound diagnosis of cavitation of ganglionic eminence. Ultrasound Obstet Gynecol 2019; 54:558-560. [PMID: 30740797 DOI: 10.1002/uog.20236] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 01/26/2019] [Accepted: 02/07/2019] [Indexed: 06/09/2023]
Affiliation(s)
- F Prefumo
- Prenatal Diagnosis Unit, Department of Obstetrics and Gynaecology, University of Brescia, ASST Spedali Civili, Brescia, Italy
| | - G Petrilli
- Department of Pathology, University of Brescia, ASST Spedali Civili di Brescia, Italy
| | - G Palumbo
- Department of Radiology, University of Brescia, Brescia, Italy
| | - E Sartori
- Department of Obstetrics and Gynaecology, University of Brescia, Brescia, Italy
| | - C Izzi
- Prenatal Diagnosis Unit, Department of Obstetrics and Gynaecology, University of Brescia, ASST Spedali Civili, Brescia, Italy
| | - L Pinelli
- Neuroradiology Unit, Pediatric Neuroradiology Section, ASST Spedali Civili, Brescia, Italy
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Serianni G, Toigo V, Bigi M, Boldrin M, Chitarin G, Dal Bello S, Grando L, Luchetta A, Marcuzzi D, Pasqualotto R, Pomaro N, Zaccaria P, Zanotto L, Agostinetti P, Agostini M, Antoni V, Aprile D, Barbisan M, Battistella M, Brombin M, Cavazzana R, Dalla Palma M, Dan M, De Lorenzi A, Delogu R, De Muri M, Denizeau S, Fadone M, Fellin F, Ferbel L, Ferro A, Gaio E, Gambetta G, Gasparini F, Gnesotto F, Jain P, Maistrello A, Manduchi G, Manfrin S, Marchiori G, Marconato N, Moresco M, Patton T, Pavei M, Peruzzo S, Pilan N, Pimazzoni A, Piovan R, Poggi C, Recchia M, Rizzolo A, Rostagni G, Sartori E, Siragusa M, Sonato P, Spada E, Spagnolo S, Spolaore M, Taliercio C, Tinti P, Ugoletti M, Valente M, Zamengo A, Zaniol B, Zaupa M, Baltador C, Cavenago M, Boilson D, Rotti C, Veltri P, Bonicelli T, Paolucci F, Muriel S, Masiello A, Chakraborty A, Patel H, Singh N, Fantz U, Heinemann B, Kraus W, Kashiwagi M, Tsumori K. SPIDER in the roadmap of the ITER neutral beams. Fusion Engineering and Design 2019. [DOI: 10.1016/j.fusengdes.2019.04.036] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Siragusa M, Sonato P, Visentin M, Mura M, Siviero F, Viale L, Maccallini E, Day C, Hanke S, Sartori E. Conceptual design of scalable vacuum pump to validate sintered getter technology for future NBI application. Fusion Engineering and Design 2019. [DOI: 10.1016/j.fusengdes.2018.11.040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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28
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Cavenago M, Serianni G, Baltador C, Barbisan M, De Muri M, Pimazzoni A, Poggi C, Veltri P, Aprile D, Antoni V, Armelao L, Baseggio L, Candeloro V, Cervaro V, Franchin L, Jain P, Laterza B, Maniero M, Martini D, Minarello A, Pasqualotto R, Rancan M, Ravarotto D, Recchia M, Sartori E, Sattin M, Ugoletti M, Variale V, Zucchetti S. Experimental experience and improvement of NIO1 H− ion source. Fusion Engineering and Design 2019. [DOI: 10.1016/j.fusengdes.2019.01.071] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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29
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Siviero F, Caruso L, Porcelli T, Mura M, Maccallini E, Manini P, Sartori E, Siragusa M, Day C, Sonato P. Characterization of ZAO® sintered getter material for use in fusion applications. Fusion Engineering and Design 2019. [DOI: 10.1016/j.fusengdes.2019.03.026] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Lebrun C, Vukusic S, Abadie V, Achour C, Ader F, Alchaar H, Alkhedr A, Andreux F, Androdias G, Arjmand R, Audoin B, Audry D, Aufauvre D, Autreaux C, Ayrignac X, Bailbe M, Benazet M, Bensa C, Bensmail D, Berger E, Bernady P, Bertagna Y, Biotti D, Blanchard-Dauphin A, Bonenfant J, Bonnan M, Bonnemain B, Borgel F, Botelho-Nevers E, Boucly S, Bourre B, Boutière C, Branger P, Brassat D, Bresch S, Breuil V, Brochet B, Brugeilles H, Bugnon P, Cabre P, Camdessanché JP, Carra-Dalière C, Casez O, Chamouard JM, Chassande B, Chataignier P, Chbicheb M, Chenet A, Ciron J, Clavelou P, Cohen M, Colamarino R, Collongues N, Coman I, Corail PR, Courtois S, Coustans M, Creange A, Creisson E, Daluzeau N, Davenas C, De Seze J, Debouverie M, Depaz R, Derache N, Divio L, Douay X, Dulau C, Durand-Dubief F, Edan G, Elias Z, Fagniez O, Faucher M, Faucheux JM, Fournier M, Gagneux-Brunon A, Gaida P, Galli P, Gallien P, Gaudelus J, Gault D, Gayou A, Genevray M, Gentil A, Gere J, Gignoux L, Giroux M, Givron P, Gout O, Grimaud J, Guennoc AM, Hadhoum N, Hautecoeur P, Heinzlef O, Jaeger M, Jeannin S, Kremer L, Kwiatkowski A, Labauge P, Labeyrie C, Lachaud S, Laffont I, Lanctin-Garcia C, Lannoy J, Lanotte L, Laplaud D, Latombe D, Lauxerois M, Le Page E, Lebrun-Frenay C, Lejeune P, Lejoyeux P, Lemonnier B, Leray E, Loche CM, Louapre C, Lubetzki C, Maarouf A, Mada B, Magy L, Maillart E, Manchon E, Marignier R, Marque P, Mathey G, Maurousset A, Mekies C, Merienne M, Michel L, Milor AM, Moisset X, Montcuquet A, Moreau T, Morel N, Moussa M, Naudillon JP, Normand M, Olive P, Ouallet JC, Outteryck O, Pacault C, Papeix C, Patry I, Peaureaux D, Pelletier J, Pichon B, Pittion S, Planque E, Pouget MC, Pourcher V, Radot C, Robert I, Rocher F, Ruet A, Ruet A, Saint-Val C, Salle JY, Salmon A, Sartori E, Schaeffer S, Stankhof B, Taithe F, Thouvenot E, Tizon C, Tourbah A, Tourniaire P, Vaillant M, Vermersch P, Vidil S, Wahab A, Warter MH, Wiertlewski S, Wiplosz B, Wittwer B, Zaenker C, Zephir H. Immunization and multiple sclerosis: Recommendations from the French Multiple Sclerosis Society. Rev Neurol (Paris) 2019; 175:341-357. [DOI: 10.1016/j.neurol.2019.04.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Revised: 03/31/2019] [Accepted: 04/11/2019] [Indexed: 10/26/2022]
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Antoni V, Taccogna F, Agostinetti P, Barbisan M, Cavenago M, Chitarin G, Ferron N, Minelli P, Pimazzoni A, Poggi C, Sartori E, Serianni G, Suweis S, Ugoletti M, Veltri P. Negative ion beam source as a complex system: identification of main processes and key interdependence. Rend Fis Acc Lincei 2019. [DOI: 10.1007/s12210-019-00798-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Facchin A, Sartori E, Luisetti C, De Galeazzi A, Beschin N. Effect of prism adaptation on neglect hemianesthesia. Cortex 2019; 113:298-311. [PMID: 30716611 DOI: 10.1016/j.cortex.2018.12.021] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Revised: 09/07/2018] [Accepted: 12/21/2018] [Indexed: 11/20/2022]
Abstract
Prism adaptation (PA) has proven to be effective in alleviating many signs of unilateral spatial neglect (USN). Generally, the principal improvement after PA treatment was found to be in the high-level cognitive function. Nevertheless, some evidence has also been found for it in somatosensory function. We have aimed to test the influence of PA on neglect hemianesthesia, a condition in which the high-level neglect-related deficit mimics hemianesthesia. Twenty-one USN patients were enrolled in the study. Each patient performed two sessions of PA, one with neutral glasses and one with prism glasses using a cross-over design. Sensitivity on the upper limb was tested using two methods. The first task was the sensibility subtest which was derived from the standard clinical examination. The second was the perceptual and motor electro-cutaneous threshold on the forearms using an electro-cutaneous stimulator. Four neuropsychological tests were used to diagnose USN and to check improvement: Star cancellation, Line bisection, Sentence reading and the Comb & Razor test. Comparing prism with sham conditions, our results show significant improvements in double extinction and in the electro-cutaneous perceptual threshold only for the contralesional hand. No improvement was found for the ipsilesional hand, for the motor threshold, and for neutral glasses. Significant improvement was found in personal neglect. Replication of the task in a subgroup of patients confirmed the primary results. The improvements in somatosensory perception together with the amelioration of personal neglect suggest that PA also has a specific effect on the neglect hemianesthesia.
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Affiliation(s)
- Alessio Facchin
- Department of Psychology, University of Milano-Bicocca, Milano, Italy; Milan Centre for Neuroscience, Milano, Italy; Centre for Research in Optics and Optometry, University of Milano-Bicocca (COMIB), Milano, Italy; Institute of Research and Studies in Optics and Optometry, Vinci, Italy.
| | - Elena Sartori
- Rehabilitation Department, A.S.S.T. Valle Olona, Varese, Italy
| | - Chiara Luisetti
- Rehabilitation Department, A.S.S.T. Valle Olona, Varese, Italy
| | | | - Nicoletta Beschin
- Neuropsychological Service, Rehabilitation Department, A.S.S.T. Valle Olona, Varese, Italy
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Dalla Palma M, Sartori E, Zaupa M, Pasqualotto R. Simulation of the beamline thermal measurements to derive particle beam parameters in the ITER neutral beam test facility. Rev Sci Instrum 2018; 89:10J111. [PMID: 30399762 DOI: 10.1063/1.5038952] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 07/10/2018] [Indexed: 06/08/2023]
Abstract
Injection of high energy neutral beam particles will be used in the ITER experiment for plasma heating and current drive. In a ITER heating beam injector, a 40 MW electrostatically accelerated negative beam will be neutralised and filtered along the beamline, obtaining a nominal 16.5 MW neutral beam power to be injected in the tokamak plasma or intercepted during conditioning and commissioning. The beam will heat the actively cooled panels of the beamline components with up to 13 MW/m2 surface power density and 18 MW power. These extreme conditions require testing in a ITER full scale neutral beam test facility under construction in Padova where the temperature of the beamline components will be monitored by 610 embedded thermocouples for protection against critical conditions, for recognising beam conditioning, and for deriving beam parameters. Power density maps of the expected beam-component interactions are applied on a parametric non-linear finite element model to simulate fields of expected temperatures. Such thermal maps are analyzed to derive the beam parameters during operation: divergence of 3-7 mrad and misalignment of 0-3 mrad. The sensibility of the temperature measurements is discussed considering a minimum 10% fraction of the nominal beam power.
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Affiliation(s)
- M Dalla Palma
- Consorzio RFX, National Research Council of Italy, 4 Corso Stati Uniti, 35127 Padova, Italy
| | - E Sartori
- Consorzio RFX, National Research Council of Italy, 4 Corso Stati Uniti, 35127 Padova, Italy
| | - M Zaupa
- Consorzio RFX, National Research Council of Italy, 4 Corso Stati Uniti, 35127 Padova, Italy
| | - R Pasqualotto
- Consorzio RFX, National Research Council of Italy, 4 Corso Stati Uniti, 35127 Padova, Italy
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Biscontin A, Wallach T, Sales G, Grudziecki A, Janke L, Sartori E, Bertolucci C, Mazzotta G, De Pittà C, Meyer B, Kramer A, Costa R. Functional characterization of the circadian clock in the Antarctic krill, Euphausia superba. Sci Rep 2017; 7:17742. [PMID: 29255161 PMCID: PMC5735174 DOI: 10.1038/s41598-017-18009-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 12/05/2017] [Indexed: 11/30/2022] Open
Abstract
Antarctic krill (Euphausia superba) is a key species in Southern Ocean ecosystem where it plays a central role in the Antarctic food web. Available information supports the existence of an endogenous timing system in krill enabling it to synchronize metabolism and behavior with an environment characterized by extreme seasonal changes in terms of day length, food availability, and surface ice extent. A screening of our transcriptome database “KrillDB” allowed us to identify the putative orthologues of 20 circadian clock components. Mapping of conserved domains and phylogenetic analyses strongly supported annotations of the identified sequences. Luciferase assays and co-immunoprecipitation experiments allowed us to define the role of the main clock components. Our findings provide an overall picture of the molecular mechanisms underlying the functioning of the endogenous circadian clock in the Antarctic krill and shed light on their evolution throughout crustaceans speciation. Interestingly, the core clock machinery shows both mammalian and insect features that presumably contribute to an evolutionary strategy to cope with polar environment’s challenges. Moreover, despite the extreme variability characterizing the Antarctic seasonal day length, the conserved light mediated degradation of the photoreceptor EsCRY1 suggests a persisting pivotal role of light as a Zeitgeber.
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Affiliation(s)
- Alberto Biscontin
- Charité-Universitätsmedizin Berlin, Laboratory of Chronobiology, D-10117, Berlin, Germany.,Department of Biology, University of Padova, 35121, Padova, Italy
| | - Thomas Wallach
- Charité-Universitätsmedizin Berlin, Laboratory of Chronobiology, D-10117, Berlin, Germany
| | - Gabriele Sales
- Department of Biology, University of Padova, 35121, Padova, Italy
| | - Astrid Grudziecki
- Charité-Universitätsmedizin Berlin, Laboratory of Chronobiology, D-10117, Berlin, Germany
| | - Leonard Janke
- Charité-Universitätsmedizin Berlin, Laboratory of Chronobiology, D-10117, Berlin, Germany
| | - Elena Sartori
- Department of Biology, University of Padova, 35121, Padova, Italy
| | - Cristiano Bertolucci
- Department of Life Sciences and Biotechnology, University of Ferrara, 44121, Ferrara, Italy
| | | | | | - Bettina Meyer
- Alfred Wegener Polar Biological Oceanography, 27570, Bremerhaven, Germany.,Carl von Ossietzky University of Oldenburg, Institute for Chemistry and Biology of the Marine Environment, 26129, Oldenburg, Germany.,Helmholtz Institute for Functional Marine Biodiversity Oldenburg (HIFMB), 26129, Oldenburg, Germany
| | - Achim Kramer
- Charité-Universitätsmedizin Berlin, Laboratory of Chronobiology, D-10117, Berlin, Germany.
| | - Rodolfo Costa
- Department of Biology, University of Padova, 35121, Padova, Italy.
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35
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Toigo V, Piovan R, Dal Bello S, Gaio E, Luchetta A, Pasqualotto R, Zaccaria P, Bigi M, Chitarin G, Marcuzzi D, Pomaro N, Serianni G, Agostinetti P, Agostini M, Antoni V, Aprile D, Baltador C, Barbisan M, Battistella M, Boldrin M, Brombin M, Dalla Palma M, De Lorenzi A, Delogu R, De Muri M, Fellin F, Ferro A, Finotti C, Fiorentin A, Gambetta G, Gnesotto F, Grando L, Jain P, Maistrello A, Manduchi G, Marconato N, Moresco M, Ocello E, Pavei M, Peruzzo S, Pilan N, Pimazzoni A, Recchia M, Rizzolo A, Rostagni G, Sartori E, Siragusa M, Sonato P, Sottocornola A, Spada E, Spagnolo S, Spolaore M, Taliercio C, Valente M, Veltri P, Zamengo A, Zaniol B, Zanotto L, Zaupa M, Boilson D, Graceffa J, Svensson L, Schunke B, Decamps H, Urbani M, Kushwah M, Chareyre J, Singh M, Bonicelli T, Agarici G, Masiello A, Paolucci F, Simon M, Bailly-Maitre L, Bragulat E, Gomez G, Gutierrez D, Mico G, Moreno JF, Pilard V, Kashiwagi M, Hanada M, Tobari H, Watanabe K, Maeshima T, Kojima A, Umeda N, Yamanaka H, Chakraborty A, Baruah U, Rotti C, Patel H, Nagaraju M, Singh N, Patel A, Dhola H, Raval B, Fantz U, Heinemann B, Kraus W, Hanke S, Hauer V, Ochoa S, Blatchford P, Chuilon B, Xue Y, De Esch H, Hemsworth R, Croci G, Gorini G, Rebai M, Muraro A, Cavenago M, D'Arienzo M, Sandri S. A substantial step forward in the realization of the ITER HNB system: The ITER NBI Test Facility. Fusion Engineering and Design 2017. [DOI: 10.1016/j.fusengdes.2016.11.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Abstract
A 12-year-old male Yorkshire Terrier was presented because of decreased appetite. Physical examination revealed mammary gland swelling and galactorrhea. Contrast-enhanced computed tomographic scanning of the skull indicated an enlarged pituitary gland, compatible with a pituitary tumor. The serum prolactin concentration was markedly elevated. One week after the start of treatment with the dopamine agonist cabergoline, the serum prolactin concentration normalized and the galactorrhea resolved. Cabergoline was administered for approximately 4 months and then discontinued. Subsequently, serum prolactin concentration increased again, and mammary gland swelling and galactorrhea reappeared. The dog was euthanized 10 months after the first detection of the galactorrhea because of problems not directly related to pituitary disease. Postmortem examination revealed an infiltrative adenoma of the pituitary gland with immunolabeling for prolactin. The clinical and histopathologic findings indicated the diagnosis of a functional prolactinoma in a male dog.
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Affiliation(s)
- Cristina Cosio
- Veterinary Clinic Croce di Gussago, Brescia, Italy
- Contributed equally to this work
| | - Elena Sartori
- Veterinary Clinic Dr Luccardini Lorenzo, Pavia, Italy
- Contributed equally to this work
| | | | | | - G.C.M. Grinwis
- Department of Pathobiology, Faculty of Veterinary Medicine, Utrecht, The Netherlands
| | - Hans S. Kooistra
- Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Federico Fracassi
- Department of Veterinary Medical Sciences, University of Bologna, Bologna, Italy
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37
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Damulewicz M, Mazzotta GM, Sartori E, Rosato E, Costa R, Pyza EM. Cryptochrome Is a Regulator of Synaptic Plasticity in the Visual System of Drosophila melanogaster. Front Mol Neurosci 2017; 10:165. [PMID: 28611590 PMCID: PMC5448152 DOI: 10.3389/fnmol.2017.00165] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Accepted: 05/11/2017] [Indexed: 11/25/2022] Open
Abstract
Drosophila CRYPTOCHROME (CRY) is a blue light sensitive protein with a key role in circadian photoreception. A main feature of CRY is that light promotes an interaction with the circadian protein TIMELESS (TIM) resulting in their ubiquitination and degradation, a mechanism that contributes to the synchronization of the circadian clock to the environment. Moreover, CRY participates in non-circadian functions such as magnetoreception, modulation of neuronal firing, phototransduction and regulation of synaptic plasticity. In the present study we used co-immunoprecipitation, yeast 2 hybrid (Y2H) and in situ proximity ligation assay (PLA) to show that CRY can physically associate with the presynaptic protein BRUCHPILOT (BRP) and that CRY-BRP complexes are located mainly in the visual system. Additionally, we present evidence that light-activated CRY may decrease BRP levels in photoreceptor termini in the distal lamina, probably targeting BRP for degradation.
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Affiliation(s)
- Milena Damulewicz
- Department of Cell Biology and Imaging, Institute of Zoology and Biomedical Research, Faculty of Biology and Earth Sciences, Jagiellonian UniversityKrakow, Poland
| | | | - Elena Sartori
- Department of Biology, University of PadovaPadova, Italy
| | - Ezio Rosato
- Department of Genetics, University of Leicester LeicesterUnited Kingdom
| | - Rodolfo Costa
- Department of Biology, University of PadovaPadova, Italy
| | - Elzbieta M. Pyza
- Department of Cell Biology and Imaging, Institute of Zoology and Biomedical Research, Faculty of Biology and Earth Sciences, Jagiellonian UniversityKrakow, Poland
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38
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Furlan L, Contiero B, Chiarini F, Colauzzi M, Sartori E, Benvegnù I, Fracasso F, Giandon P. Risk assessment of maize damage by wireworms (Coleoptera: Elateridae) as the first step in implementing IPM and in reducing the environmental impact of soil insecticides. Environ Sci Pollut Res Int 2017; 24:236-251. [PMID: 27709433 PMCID: PMC5219023 DOI: 10.1007/s11356-016-7692-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Accepted: 09/12/2016] [Indexed: 05/27/2023]
Abstract
A survey of maize fields was conducted in northeast Italy from 1986 to 2014, resulting in a dataset of 1296 records including information on wireworm damage to maize, plant-attacking species, agronomic characteristics, landscape and climate. Three wireworm species, Agriotes brevis Candeze, A. sordidus Illiger and A. ustulatus Schäller, were identified as the dominant pest species in maize fields. Over the 29-year period surveyed, no yield reduction was observed when wireworm plant damage was below 15 % of the stand. A preliminary univariate analysis of risk assessment was applied to identify the main factors influencing the occurrence of damage. A multifactorial model was then applied by using the significant factors identified. This model allowed the research to highlight the strongest factors and to analyse how the main factors together influenced damage risk. The strongest factors were: A. brevis as prevalent damaging species, soil organic matter content >5 %, rotation including meadows and/or double crops, A. sordidus as prevalent damaging species, and surrounding landscape mainly meadows, uncultivated grass and double crops. The multifactorial model also showed how the simultaneous occurrence of two or more of the aforementioned risk factors can conspicuously increase the risk of wireworm damage to maize crops, while the probability of damage to a field with no-risk factors is always low (<1 %). These results make it possible to draw risk maps to identify low-risk and high-risk areas, a first step in implementing bespoke IPM procedures in an attempt to reduce the impact of soil insecticides significantly.
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Affiliation(s)
- L. Furlan
- Veneto Agricoltura, Viale dell’Università, 14, 35020 Legnaro, PD Italy
| | - B. Contiero
- Dipartimento di Medicina Animale, Produzioni e Salute—Università degli Studi di Padova, Viale dell’Università, 16, 35020 Legnaro, PD Italy
| | - F. Chiarini
- Veneto Agricoltura, Viale dell’Università, 14, 35020 Legnaro, PD Italy
| | - M. Colauzzi
- Veneto Agricoltura, Viale dell’Università, 14, 35020 Legnaro, PD Italy
| | - E. Sartori
- Veneto Agricoltura, Viale dell’Università, 14, 35020 Legnaro, PD Italy
| | - I. Benvegnù
- Veneto Agricoltura, Viale dell’Università, 14, 35020 Legnaro, PD Italy
| | - F. Fracasso
- Veneto Agricoltura, Viale dell’Università, 14, 35020 Legnaro, PD Italy
| | - P. Giandon
- ARPAV Servizio Osservatorio Suolo e Bonifiche, Via S. Barbara, 5/a, 31100 Treviso, TV Italy
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39
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Sartori E, Panasenkov A, Veltri P, Serianni G, Pasqualotto R. Study of a high power hydrogen beam diagnostic based on secondary electron emission. Rev Sci Instrum 2016; 87:11D438. [PMID: 27910602 DOI: 10.1063/1.4960313] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In high power neutral beams for fusion, beam uniformity is an important figure of merit. Knowing the transverse power profile is essential during the initial phases of beam source operation, such as those expected for the ITER heating neutral beam (HNB) test facility. To measure it a diagnostic technique is proposed, based on the collection of secondary electrons generated by beam-surface and beam-gas interactions, by an array of positively biased collectors placed behind the calorimeter tubes. This measurement showed in the IREK test stand good proportionality to the primary beam current. To investigate the diagnostic performances in different conditions, we developed a numerical model of secondary electron emission, induced by beam particle impact on the copper tubes, and reproducing the cascade of secondary emission caused by successive electron impacts. The model is first validated against IREK measurements. It is then applied to the HNB case, to assess the locality of the measurement, the proportionality to the beam current density, and the influence of beam plasma.
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Affiliation(s)
- E Sartori
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - A Panasenkov
- NRC, Kurchatov Institute, 1, Kurchatov Sq, Moscow 123182, Russia
| | - P Veltri
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - G Serianni
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - R Pasqualotto
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
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40
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Zaupa M, Dalla Palma M, Sartori E, Brombin M, Pasqualotto R. SPIDER beam dump as diagnostic of the particle beam. Rev Sci Instrum 2016; 87:11D415. [PMID: 27910661 DOI: 10.1063/1.4958906] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The beam power produced by the negative ion source for the production of ion of deuterium extracted from RF plasma is mainly absorbed by the beam dump component which has been designed also for measuring the temperatures on the dumping panels for beam diagnostics. A finite element code has been developed to characterize, by thermo-hydraulic analysis, the sensitivity of the beam dump to the different beam parameters. The results prove the capability of diagnosing the beam divergence and the horizontal misalignment, while the entity of the halo fraction appears hardly detectable without considering the other foreseen diagnostics like tomography and beam emission spectroscopy.
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Affiliation(s)
- M Zaupa
- Università degli Studi di Padova, Via 8 Febbraio 2, Padova 35122, Italy
| | - M Dalla Palma
- Consorzio RFX, Corso Stati Uniti 4, Padova 35127, Italy
| | - E Sartori
- Università degli Studi di Padova, Via 8 Febbraio 2, Padova 35122, Italy
| | - M Brombin
- Consorzio RFX, Corso Stati Uniti 4, Padova 35127, Italy
| | - R Pasqualotto
- Consorzio RFX, Corso Stati Uniti 4, Padova 35127, Italy
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41
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Dalla Palma M, Pasqualotto R, Sartori E, Spagnolo S, Spolaore M, Veltri P. In-vacuum sensors for the beamline components of the ITER neutral beam test facility. Rev Sci Instrum 2016; 87:11D417. [PMID: 27910334 DOI: 10.1063/1.4959954] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Embedded sensors have been designed for installation on the components of the MITICA beamline, the prototype ITER neutral beam injector (Megavolt ITER Injector and Concept Advancement), to derive characteristics of the particle beam and to monitor the component conditions during operation for protection and thermal control. Along the beamline, the components interacting with the particle beam are the neutralizer, the residual ion dump, and the calorimeter. The design and the positioning of sensors on each component have been developed considering the expected beam-surface interaction including non-ideal and off-normal conditions. The arrangement of the following instrumentation is presented: thermal sensors, strain gages, electrostatic probes including secondary emission detectors, grounding shunt for electrical currents, and accelerometers.
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Affiliation(s)
| | | | | | | | | | - P Veltri
- Consorzio RFX, Padova 35127, Italy
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42
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Calura E, Paracchini L, Fruscio R, DiFeo A, Ravaggi A, Peronne J, Martini P, Sales G, Beltrame L, Bignotti E, Tognon G, Milani R, Clivio L, Dell'Anna T, Cattoretti G, Katsaros D, Sartori E, Mangioni C, Ardighieri L, D'Incalci M, Marchini S, Romualdi C. A prognostic regulatory pathway in stage I epithelial ovarian cancer: new hints for the poor prognosis assessment. Ann Oncol 2016; 27:1511-9. [PMID: 27194815 DOI: 10.1093/annonc/mdw210] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Accepted: 05/11/2016] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Clinical and pathological parameters of patients with epithelial ovarian cancer (EOC) do not thoroughly predict patients' outcome. Despite the good outcome of stage I EOC compared with that of stages III and IV, the risk assessment and treatments are almost the same. However, only 20% of stage I EOC cases relapse and die, meaning that only a proportion of patients need intensive treatment and closer follow-up. Thus, the identification of cell mechanisms that could improve outcome prediction and rationalize therapeutic options is an urgent need in the clinical practice. PATIENTS AND METHODS We have gathered together 203 patients with stage I EOC diagnosis, from whom snap-frozen tumor biopsies were available at the time of primary surgery before any treatment. Patients, with a median follow-up of 7 years, were stratified into a training set and a validation set. RESULTS AND CONCLUSIONS Integrated analysis of miRNA and gene expression profiles allowed to identify a prognostic cell pathway, composed of 16 miRNAs and 10 genes, wiring the cell cycle, 'Activins/Inhibins' and 'Hedgehog' signaling pathways. Once validated by an independent technique, all the elements of the circuit resulted associated with overall survival (OS) and progression-free survival (PFS), in both univariate and multivariate models. For each patient, the circuit expressions have been translated into an activation state index (integrated signature classifier, ISC), used to stratify patients into classes of risk. This prediction reaches the 89.7% of sensitivity and 96.6% of specificity for the detection of PFS events. The prognostic value was then confirmed in the external independent validation set in which the PFS events are predicted with 75% sensitivity and 94.7% specificity. Moreover, the ISC shows higher classification performance than conventional clinical classifiers. Thus, the identified circuit enhances the understanding of the molecular mechanisms lagging behind stage I EOC and the ISC improves our capabilities to assess, at the time of diagnosis, the patient risk of relapse.
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Affiliation(s)
- E Calura
- Department of Biology, University of Padova, Padova
| | - L Paracchini
- Department of Oncology, IRCCS 'Mario Negri' Institute for Pharmacological Research
| | - R Fruscio
- Clinic of Obstetrics and Gynaecology, University of Milano-Bicocca, San Gerardo Hospital, Monza MaNGO Group, Milano, Italy
| | - A DiFeo
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, USA
| | - A Ravaggi
- Division of Gynaecologic Oncology, 'Angelo Nocivelli' Institute of Molecular Medicine
| | - J Peronne
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, USA
| | - P Martini
- Department of Biology, University of Padova, Padova
| | - G Sales
- Department of Biology, University of Padova, Padova
| | - L Beltrame
- Department of Oncology, IRCCS 'Mario Negri' Institute for Pharmacological Research
| | - E Bignotti
- Division of Gynaecologic Oncology, 'Angelo Nocivelli' Institute of Molecular Medicine
| | - G Tognon
- Department of Obstetrics and Gynaecology, Spedali Civili of Brescia, University of Brescia, Brescia
| | - R Milani
- Clinic of Obstetrics and Gynaecology, University of Milano-Bicocca, San Gerardo Hospital, Monza
| | - L Clivio
- Department of Oncology, IRCCS 'Mario Negri' Institute for Pharmacological Research
| | - T Dell'Anna
- Clinic of Obstetrics and Gynaecology, University of Milano-Bicocca, San Gerardo Hospital, Monza
| | - G Cattoretti
- Anatomo-pathology Unit, University of Milan-Bicocca, San Gerardo Hospital, Monza
| | - D Katsaros
- MaNGO Group, Milano, Italy Department of Surgical Science and Gynecology, Azienda Ospedaliero Universitaria, Città della Salute, presidio S.Anna, University of Torino, Torino
| | - E Sartori
- Division of Gynaecologic Oncology, 'Angelo Nocivelli' Institute of Molecular Medicine
| | - C Mangioni
- MaNGO Group, Milano, Italy A.O. della Provincia di Lecco - P.O.A Manzoni, Lecco
| | - L Ardighieri
- Department of Molecular and Translational Medicine, 'Angelo Nocivelli' Institute for Molecular Medicine Department of Pathology, Spedali Civili of Brescia, University of Brescia, Brescia, Italy
| | - M D'Incalci
- Department of Oncology, IRCCS 'Mario Negri' Institute for Pharmacological Research MaNGO Group, Milano, Italy
| | - S Marchini
- Department of Oncology, IRCCS 'Mario Negri' Institute for Pharmacological Research
| | - C Romualdi
- Department of Biology, University of Padova, Padova
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43
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Pilan N, Antoni V, De Lorenzi A, Chitarin G, Veltri P, Sartori E. A new deflection technique applied to an existing scheme of electrostatic accelerator for high energy neutral beam injection in fusion reactor devices. Rev Sci Instrum 2016; 87:02B325. [PMID: 26932053 DOI: 10.1063/1.4939857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A scheme of a neutral beam injector (NBI), based on electrostatic acceleration and magneto-static deflection of negative ions, is proposed and analyzed in terms of feasibility and performance. The scheme is based on the deflection of a high energy (2 MeV) and high current (some tens of amperes) negative ion beam by a large magnetic deflector placed between the Beam Source (BS) and the neutralizer. This scheme has the potential of solving two key issues, which at present limit the applicability of a NBI to a fusion reactor: the maximum achievable acceleration voltage and the direct exposure of the BS to the flux of neutrons and radiation coming from the fusion reactor. In order to solve these two issues, a magnetic deflector is proposed to screen the BS from direct exposure to radiation and neutrons so that the voltage insulation between the electrostatic accelerator and the grounded vessel can be enhanced by using compressed SF6 instead of vacuum so that the negative ions can be accelerated at energies higher than 1 MeV. By solving the beam transport with different magnetic deflector properties, an optimum scheme has been found which is shown to be effective to guarantee both the steering effect and the beam aiming.
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Affiliation(s)
- N Pilan
- Consorzio RFX-Associazione EURATOM-ENEA per la Fusione, Corso Stati Uniti 4, 35127 Padova, Italy
| | - V Antoni
- Consorzio RFX-Associazione EURATOM-ENEA per la Fusione, Corso Stati Uniti 4, 35127 Padova, Italy
| | - A De Lorenzi
- Consorzio RFX-Associazione EURATOM-ENEA per la Fusione, Corso Stati Uniti 4, 35127 Padova, Italy
| | - G Chitarin
- Consorzio RFX-Associazione EURATOM-ENEA per la Fusione, Corso Stati Uniti 4, 35127 Padova, Italy
| | - P Veltri
- Consorzio RFX-Associazione EURATOM-ENEA per la Fusione, Corso Stati Uniti 4, 35127 Padova, Italy
| | - E Sartori
- Consorzio RFX-Associazione EURATOM-ENEA per la Fusione, Corso Stati Uniti 4, 35127 Padova, Italy
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44
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Abstract
Large cryogenic pumps are installed in the vessel of large neutral beam injectors (NBIs) used to heat the plasma in nuclear fusion experiments. The operation of such pumps can be compromised by the presence of stray secondary electrons that are generated along the beam path. In this paper, we present a numerical model to analyze the propagation of the electrons inside the pump. The aim of the study is to quantify the power load on the active pump elements, via evaluation of the transmission probabilities across the domain of the pump. These are obtained starting from large datasets of particle trajectories, obtained by numerical means. The transmission probability of the electrons across the domain is calculated for the NBI of the ITER and for its prototype Megavolt ITer Injector and Concept Advancement (MITICA) and the results are discussed.
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Affiliation(s)
- P Veltri
- Consorzio RFX (CNR, ENEA, INFN, Università di Padova, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - E Sartori
- Consorzio RFX (CNR, ENEA, INFN, Università di Padova, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
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45
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Zaupa M, Sartori E, Dalla Palma M, Fellin F, Marcuzzi D, Pavei M, Rizzolo A. Steady state thermal-hydraulic analyses of the MITICA cooling circuits. Rev Sci Instrum 2016; 87:02B323. [PMID: 26932051 DOI: 10.1063/1.4936919] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Megavolt ITER Injector Concept Advancement is the full scale prototype of the heating and current drive neutral beam injectors for ITER, to be built at Consorzio RFX (Padova). The engineering design of its components is challenging: the total heat loads they will be subjected to (expected between 2 and 19 MW), the high heat fluxes (up to 20 MW/m(2)), and the beam pulse duration up to 1 h, set demanding requirements for reliable active cooling circuits. In support of the design, the thermo-hydraulic behavior of each cooling circuit under steady state condition has been investigated by using one-dimensional models. The final results, obtained considering a number of optimizations for the cooling circuits, show that all the requirements in terms of flow rate, temperature, and pressure drop are properly fulfilled.
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Affiliation(s)
- M Zaupa
- Università degli Studi di Padova, Via 8 Febbraio 2, Padova 35122, Italy
| | - E Sartori
- Consorzio RFX, Corso Stati Uniti 4, Padova 35127, Italy
| | - M Dalla Palma
- Consorzio RFX, Corso Stati Uniti 4, Padova 35127, Italy
| | - F Fellin
- Consorzio RFX, Corso Stati Uniti 4, Padova 35127, Italy
| | - D Marcuzzi
- Consorzio RFX, Corso Stati Uniti 4, Padova 35127, Italy
| | - M Pavei
- Consorzio RFX, Corso Stati Uniti 4, Padova 35127, Italy
| | - A Rizzolo
- Consorzio RFX, Corso Stati Uniti 4, Padova 35127, Italy
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46
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Sartori E, Maceina TJ, Veltri P, Cavenago M, Serianni G. Simulation of space charge compensation in a multibeamlet negative ion beam. Rev Sci Instrum 2016; 87:02B917. [PMID: 26932089 DOI: 10.1063/1.4933252] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Ion beam space charge compensation occurs by cumulating in the beam potential well charges having opposite polarity, usually generated by collisional processes. In this paper we investigate the case of a H(-) ion beam drift, in a bi-dimensional approximation of the NIO1 (Negative Ion Optimization phase 1) negative ion source. H(-) beam ion transport and plasma formation are studied via particle-in-cell simulations. Differential cross sections are sampled to determine the velocity distribution of secondary particles generated by ionization of the residual gas (electrons and slow H2 (+) ions) or by stripping of the beam ions (electrons, H, and H(+)). The simulations include three beamlets of a horizontal section, so that multibeamlet space charge and secondary particle diffusion between separate generation regions are considered, and include a repeller grid biased at various potentials. Results show that after the beam space charge is effectively screened by the secondary plasma in about 3 μs (in agreement with theoretical expectations), a plasma grows across the beamlets with a characteristic time three times longer, and a slight overcompensation of the electric potential is verified as expected in the case of negative ions.
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Affiliation(s)
- E Sartori
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - T J Maceina
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - P Veltri
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - M Cavenago
- INFN-LNL, Viale dell'Università n. 2, 35020 Legnaro, Italy
| | - G Serianni
- Consorzio RFX (CNR, ENEA, INFN, UNIPD, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
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47
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Abstract
NIO1 (Negative Ion Optimization 1) is a versatile ion source designed to study the physics of production and acceleration of H- beams up to 60 keV. In ion sources, the gas is steadily injected in the plasma source to sustain the discharge, while high vacuum is maintained by a dedicated pumping system located in the vessel. In this paper, the three dimensional gas flow in NIO1 is studied in the molecular flow regime by the Avocado code. The analysis of the gas density profile along the accelerator considers the influence of effective gas temperature in the source, of the gas temperature accommodation by collisions at walls, and of the gas particle mass. The calculated source and vessel pressures are compared with experimental measurements in NIO1 during steady gas injection.
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Affiliation(s)
- E Sartori
- Consorzio RFX (CNR, ENEA, INFN, Università di Padova, Acciaierie Venete SpA), C.so Stati Uniti 4, 35127 Padova, Italy
| | - P Veltri
- Consorzio RFX (CNR, ENEA, INFN, Università di Padova, Acciaierie Venete SpA), C.so Stati Uniti 4, 35127 Padova, Italy
| | - M Cavenago
- INFN-LNL, v.le dell'Università 2, I-35020 Legnaro (PD), Italy
| | - G Serianni
- Consorzio RFX (CNR, ENEA, INFN, Università di Padova, Acciaierie Venete SpA), C.so Stati Uniti 4, 35127 Padova, Italy
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48
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Spagnolo S, Spolaore M, Dalla Palma M, Pasqualotto R, Sartori E, Serianni G, Veltri P. Preliminary design of electrostatic sensors for MITICA beam line components. Rev Sci Instrum 2016; 87:02B931. [PMID: 26932103 DOI: 10.1063/1.4935612] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Megavolt ITER Injector and Concept Advancement, the full-scale prototype of ITER neutral beam injector, is under construction in Italy. The device will generate deuterium negative ions, then accelerated and neutralized. The emerging beam, after removal of residual ions, will be dumped onto a calorimeter. The presence of plasma and its parameters will be monitored in the components of the beam-line, by means of specific electrostatic probes. Double probes, with the possibility to be configured as Langmuir probes and provide local ion density and electron temperature measurements, will be employed in the neutralizer and in the residual ion dump. Biased electrodes collecting secondary emission electrons will be installed in the calorimeter with the aim to provide a horizontal profile of the beam.
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Affiliation(s)
- S Spagnolo
- Consorzio RFX, Associazione EURATOM-ENEA sulla Fusione, 35127 Padova, Italy
| | - M Spolaore
- Consorzio RFX, Associazione EURATOM-ENEA sulla Fusione, 35127 Padova, Italy
| | - M Dalla Palma
- Consorzio RFX, Associazione EURATOM-ENEA sulla Fusione, 35127 Padova, Italy
| | - R Pasqualotto
- Consorzio RFX, Associazione EURATOM-ENEA sulla Fusione, 35127 Padova, Italy
| | - E Sartori
- Consorzio RFX, Associazione EURATOM-ENEA sulla Fusione, 35127 Padova, Italy
| | - G Serianni
- Consorzio RFX, Associazione EURATOM-ENEA sulla Fusione, 35127 Padova, Italy
| | - P Veltri
- Consorzio RFX, Associazione EURATOM-ENEA sulla Fusione, 35127 Padova, Italy
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49
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Cavenago M, Serianni G, De Muri M, Agostinetti P, Antoni V, Baltador C, Barbisan M, Baseggio L, Bigi M, Cervaro V, Degli Agostini F, Fagotti E, Kulevoy T, Ippolito N, Laterza B, Minarello A, Maniero M, Pasqualotto R, Petrenko S, Poggi M, Ravarotto D, Recchia M, Sartori E, Sattin M, Sonato P, Taccogna F, Variale V, Veltri P, Zaniol B, Zanotto L, Zucchetti S. First experiments with the negative ion source NIO1. Rev Sci Instrum 2016; 87:02B320. [PMID: 26932048 DOI: 10.1063/1.4932616] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Neutral Beam Injectors (NBIs), which need to be strongly optimized in the perspective of DEMO reactor, request a thorough understanding of the negative ion source used and of the multi-beamlet optics. A relatively compact radio frequency (rf) ion source, named NIO1 (Negative Ion Optimization 1), with 9 beam apertures for a total H(-) current of 130 mA, 60 kV acceleration voltage, was installed at Consorzio RFX, including a high voltage deck and an X-ray shield, to provide a test bench for source optimizations for activities in support to the ITER NBI test facility. NIO1 status and plasma experiments both with air and with hydrogen as filling gas are described. Transition from a weak plasma to an inductively coupled plasma is clearly evident for the former gas and may be triggered by rising the rf power (over 0.5 kW) at low pressure (equal or below 2 Pa). Transition in hydrogen plasma requires more rf power (over 1.5 kW).
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Affiliation(s)
- M Cavenago
- INFN-Laboratori Nazionali di Legnaro (LNL), v.le dell'Università 2, I-35020 Legnaro PD, Italy
| | - G Serianni
- Consorzio RFX, Corso Stati Uniti 4, I-35127 Padova, Italy
| | - M De Muri
- INFN-Laboratori Nazionali di Legnaro (LNL), v.le dell'Università 2, I-35020 Legnaro PD, Italy
| | - P Agostinetti
- Consorzio RFX, Corso Stati Uniti 4, I-35127 Padova, Italy
| | - V Antoni
- Consorzio RFX, Corso Stati Uniti 4, I-35127 Padova, Italy
| | - C Baltador
- Consorzio RFX, Corso Stati Uniti 4, I-35127 Padova, Italy
| | - M Barbisan
- Consorzio RFX, Corso Stati Uniti 4, I-35127 Padova, Italy
| | - L Baseggio
- Consorzio RFX, Corso Stati Uniti 4, I-35127 Padova, Italy
| | - M Bigi
- Consorzio RFX, Corso Stati Uniti 4, I-35127 Padova, Italy
| | - V Cervaro
- Consorzio RFX, Corso Stati Uniti 4, I-35127 Padova, Italy
| | | | - E Fagotti
- INFN-Laboratori Nazionali di Legnaro (LNL), v.le dell'Università 2, I-35020 Legnaro PD, Italy
| | - T Kulevoy
- INFN-Laboratori Nazionali di Legnaro (LNL), v.le dell'Università 2, I-35020 Legnaro PD, Italy
| | - N Ippolito
- Istituto Nazionale di Fisica Nucleare, Bari, Italy
| | - B Laterza
- Consorzio RFX, Corso Stati Uniti 4, I-35127 Padova, Italy
| | - A Minarello
- INFN-Laboratori Nazionali di Legnaro (LNL), v.le dell'Università 2, I-35020 Legnaro PD, Italy
| | - M Maniero
- Consorzio RFX, Corso Stati Uniti 4, I-35127 Padova, Italy
| | - R Pasqualotto
- Consorzio RFX, Corso Stati Uniti 4, I-35127 Padova, Italy
| | - S Petrenko
- INFN-Laboratori Nazionali di Legnaro (LNL), v.le dell'Università 2, I-35020 Legnaro PD, Italy
| | - M Poggi
- INFN-Laboratori Nazionali di Legnaro (LNL), v.le dell'Università 2, I-35020 Legnaro PD, Italy
| | - D Ravarotto
- Consorzio RFX, Corso Stati Uniti 4, I-35127 Padova, Italy
| | - M Recchia
- Consorzio RFX, Corso Stati Uniti 4, I-35127 Padova, Italy
| | - E Sartori
- Consorzio RFX, Corso Stati Uniti 4, I-35127 Padova, Italy
| | - M Sattin
- INFN-Laboratori Nazionali di Legnaro (LNL), v.le dell'Università 2, I-35020 Legnaro PD, Italy
| | - P Sonato
- Consorzio RFX, Corso Stati Uniti 4, I-35127 Padova, Italy
| | - F Taccogna
- Istituto Nazionale di Fisica Nucleare, Bari, Italy
| | - V Variale
- Istituto Nazionale di Fisica Nucleare, Bari, Italy
| | - P Veltri
- Consorzio RFX, Corso Stati Uniti 4, I-35127 Padova, Italy
| | - B Zaniol
- Consorzio RFX, Corso Stati Uniti 4, I-35127 Padova, Italy
| | - L Zanotto
- Consorzio RFX, Corso Stati Uniti 4, I-35127 Padova, Italy
| | - S Zucchetti
- Consorzio RFX, Corso Stati Uniti 4, I-35127 Padova, Italy
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50
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Veltri P, Antoni V, Agostinetti P, Brombin M, Ikeda K, Kisaki M, Nakano H, Sartori E, Serianni G, Takeiri Y, Tsumori K. Optics of the NIFS negative ion source test stand by infrared calorimetry and numerical modelling. Rev Sci Instrum 2016; 87:02B908. [PMID: 26932080 DOI: 10.1063/1.4932982] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
At National Institute for Fusion Science (NIFS), a multi-ampere negative ion source is used to support the R&D on H(-) production, extraction, and acceleration. In this contribution, we study the characteristics of the acceleration system of this source, in order to characterize the beam optics at different operational conditions. A dedicated experimental campaign was carried out at NIFS, using as main diagnostic the infra-red imaging of the beam profiles. The experimental measurements are also compared with 3D numerical simulations, in order to validate the codes and to assess their degree of reliability. The simulations show a satisfactory agreement with the experimental results.
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Affiliation(s)
- P Veltri
- Consorzio RFX (CNR, ENEA, INFN, Università di Padova, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - V Antoni
- Consorzio RFX (CNR, ENEA, INFN, Università di Padova, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - P Agostinetti
- Consorzio RFX (CNR, ENEA, INFN, Università di Padova, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - M Brombin
- Consorzio RFX (CNR, ENEA, INFN, Università di Padova, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - K Ikeda
- National Institute for Fusion Science, 322-6 Oroshi, Toki, Gifu 509-5292, Japan
| | - M Kisaki
- National Institute for Fusion Science, 322-6 Oroshi, Toki, Gifu 509-5292, Japan
| | - H Nakano
- National Institute for Fusion Science, 322-6 Oroshi, Toki, Gifu 509-5292, Japan
| | - E Sartori
- Consorzio RFX (CNR, ENEA, INFN, Università di Padova, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - G Serianni
- Consorzio RFX (CNR, ENEA, INFN, Università di Padova, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - Y Takeiri
- National Institute for Fusion Science, 322-6 Oroshi, Toki, Gifu 509-5292, Japan
| | - K Tsumori
- National Institute for Fusion Science, 322-6 Oroshi, Toki, Gifu 509-5292, Japan
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