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Doré D, Berthoumieux E, Deshayes Q, Thulliez L, Legou P, Combet M, Kebbiri M, Marcel A, Mols JP, Frégeau M, Herlant S, Ledoux X, Pancin J, Oberstedt S. Performance validation of the first arm of FALSTAFF: 252Cf and 235U fission fragment characterisation. EPJ Web Conf 2019. [DOI: 10.1051/epjconf/201921104002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The renewed interest for the study of nuclear fission is mainly motivated by the development of GEN-IV reactor concepts, mostly foreseen to operate in the fast neutron energy domain. To support this development, new high-quality nuclear data are needed. In this context, a new experimental setup, the FALSTAFF spectrometer, dedicated to the study of nuclear fission is under development. Employing the double-velocity (2V) and energy-velocity (EV) methods, the fission fragment mass before and after neutron evaporation will be deduced and the correlation between prompt neutron multiplicity and fragment mass will be determined. The first arm of the spectrometer is achieved. It is composed of two SED-MWPC detectors (a combination of a foil to produce secondary electrons and a Multi-Wire Proportional Chamber to detect them) and an axial ionization chamber. The SED-MWPC give access to the velocity (V) via time-of-flight and position measurements. The ionization chamber measures the fragment kinetic energy (E) and the energy loss profile. Preliminary results for spontaneous fission of 252Cf and from the thermal-neutron induced fission experiment on 235U, performed at the Orphée reactor (CEA-Saclay, France), are presented.
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Chietera A, Thulliez L, Berthoumieux E, Doré D, Letourneau A, Legou P, Kebbiri M, Piret Y, Mols J, Combet M, Riallot M, Marcel A, Pancin J, Frégeau MO, Ledoux X, Lecolley FR, Perronnel J, Goupillere D. Recent developments of the FALSTAFF experimental setup. EPJ Web Conf 2018. [DOI: 10.1051/epjconf/201819304003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The study of nuclear fission is encountering renewed interest with the development of GEN-IV reactor concepts, mostly working in the neutron fast energy domain. To support the fast reactor technologies, new high quality nuclear data are needed. New facilities are being constructed to produce high intensity neutron beams from hundreds of keV to few tens of MeV (Licorne, NFS, nELBE, ...). They will open new opportunities to provide nuclear data. In this framework the development of an experimental setup called FALSTAFF for a characterisation of actinide fission fragments has been undertaken. Fission fragment yields and associated neutron multiplicities will be measured as a function of the neutron energy. Based on time-of-flight and residual energy technique, the setup will allow the simultaneous measurement of the complementary fragment velocity and energy. The FALSTAFF setup and the upgrade of the first arm prototype with the new ionisation chamber CALIBER will be presented. The performances of the experimental apparatus is discussed.
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Thulliez L, Doré D, Berthoumieux E, Panebianco S, Legou P, Kebbiri M, Piret Y, Mols J, Combet M, Riallot M, Marcel A, Farget F, Pancin J, Frégeau M, Ledoux X, Lecolley FR, Perronnel J, Goupillère D, Oberstedt S. Impact of material thicknesses on fission observables obtained with the FALSTAFF experimental setup. EPJ Web Conf 2017. [DOI: 10.1051/epjconf/201714604028] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Radics B, Nagata Y, Yamazaki Y, Ishikawa S, Kuroda N, Matsuda Y, Anfreville M, Aune S, Boyer M, Chateau F, Combet M, Granelli R, Legou P, Mandjavidze I, Procureur S, Riallot M, Vallage B, Vandenbroucke M. The ASACUSA Micromegas Tracker: A cylindrical, bulk Micromegas detector for antimatter research. Rev Sci Instrum 2015; 86:083304. [PMID: 26329178 DOI: 10.1063/1.4927685] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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
The ASACUSA Micromegas Tracker (AMT; ASACUSA: Atomic Spectroscopy and Collisions Using Slow Antiprotons) was designed to be able to reconstruct antiproton-nucleon annihilation vertices in three dimensions. The goal of this device is to study antihydrogen formation processes in the ASACUSA cusp trap, which was designed to synthesise a spin-polarised antihydrogen beam for precise tests of Charge, Parity, and Time (CPT) symmetry invariance. This paper discusses the structure and technical details of an AMT detector built into such an environment, its data acquisition system and the first performance with cosmic rays.
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Affiliation(s)
- B Radics
- Atomic Physics Laboratory, RIKEN, Saitama 351-0198, Japan
| | - Y Nagata
- Atomic Physics Laboratory, RIKEN, Saitama 351-0198, Japan
| | - Y Yamazaki
- Atomic Physics Laboratory, RIKEN, Saitama 351-0198, Japan
| | - S Ishikawa
- Institute of Physics, Graduate School of Arts and Sciences, University of Tokyo, Tokyo 153-8902, Japan
| | - N Kuroda
- Institute of Physics, Graduate School of Arts and Sciences, University of Tokyo, Tokyo 153-8902, Japan
| | - Y Matsuda
- Institute of Physics, Graduate School of Arts and Sciences, University of Tokyo, Tokyo 153-8902, Japan
| | - M Anfreville
- Irfu, CEA, Centre de Saclay, 91191 Gif sur Yvette, France
| | - S Aune
- Irfu, CEA, Centre de Saclay, 91191 Gif sur Yvette, France
| | - M Boyer
- Irfu, CEA, Centre de Saclay, 91191 Gif sur Yvette, France
| | - F Chateau
- Irfu, CEA, Centre de Saclay, 91191 Gif sur Yvette, France
| | - M Combet
- Irfu, CEA, Centre de Saclay, 91191 Gif sur Yvette, France
| | - R Granelli
- Irfu, CEA, Centre de Saclay, 91191 Gif sur Yvette, France
| | - P Legou
- Irfu, CEA, Centre de Saclay, 91191 Gif sur Yvette, France
| | - I Mandjavidze
- Irfu, CEA, Centre de Saclay, 91191 Gif sur Yvette, France
| | - S Procureur
- Irfu, CEA, Centre de Saclay, 91191 Gif sur Yvette, France
| | - M Riallot
- Irfu, CEA, Centre de Saclay, 91191 Gif sur Yvette, France
| | - B Vallage
- Irfu, CEA, Centre de Saclay, 91191 Gif sur Yvette, France
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