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Cirant S, Berrino J, Buratti P, D’Antona G, Gandini F, Granucci G, Iannone E, Lazzaro E, Mellera V, Muzzini V, Smeulders P, Tudisco O. ECH/ECCD Applications for MHD Studies and Automatic Control in FTU Tokamak. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.13182/fst08-a1663] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- S. Cirant
- Associazione Euratom-CNR sulla Fusione, IFP-CNR, Via R.Cozzi 53, 20125 Milano, Italy
| | - J. Berrino
- Associazione Euratom-CNR sulla Fusione, IFP-CNR, Via R.Cozzi 53, 20125 Milano, Italy
| | - P. Buratti
- Centro Ricerche Energia, EURATOM-ENEA Association, Frascati, Italy
| | | | - F. Gandini
- Associazione Euratom-CNR sulla Fusione, IFP-CNR, Via R.Cozzi 53, 20125 Milano, Italy
| | - G. Granucci
- Associazione Euratom-CNR sulla Fusione, IFP-CNR, Via R.Cozzi 53, 20125 Milano, Italy
| | - E. Iannone
- Centro Ricerche Energia, EURATOM-ENEA Association, Frascati, Italy
| | - E. Lazzaro
- Associazione Euratom-CNR sulla Fusione, IFP-CNR, Via R.Cozzi 53, 20125 Milano, Italy
| | - V. Mellera
- Associazione Euratom-CNR sulla Fusione, IFP-CNR, Via R.Cozzi 53, 20125 Milano, Italy
| | - V. Muzzini
- Associazione Euratom-CNR sulla Fusione, IFP-CNR, Via R.Cozzi 53, 20125 Milano, Italy
| | - P. Smeulders
- Centro Ricerche Energia, EURATOM-ENEA Association, Frascati, Italy
| | - O. Tudisco
- Centro Ricerche Energia, EURATOM-ENEA Association, Frascati, Italy
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Sadeghi Y. Procedure to Perform Real-Time Reconstruction of the Magnetic Flux in FTU Using RTAI Virtual Machine. JOURNAL OF FUSION ENERGY 2011. [DOI: 10.1007/s10894-011-9465-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Pre-Results of the Real-Time ODIN Validation on MARTe Using Plasma Linearized Model in FTU Tokamak. JOURNAL OF FUSION ENERGY 2011. [DOI: 10.1007/s10894-011-9458-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Iannone F, Bertocchi A, Boncagni L, Centioli C, Panella M, Vellucci M, Vitale V. Open source solutions in control and data acquisition systems: FTU case studies. FUSION ENGINEERING AND DESIGN 2010. [DOI: 10.1016/j.fusengdes.2010.04.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Canton A, Innocente P, Tudisco O. Two-color medium-infrared scanning interferometer for the Frascati tokamak upgrade fusion test device. APPLIED OPTICS 2006; 45:9105-14. [PMID: 17151749 DOI: 10.1364/ao.45.009105] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
A scanning beam interferometer installed on the Frascati tokamak upgrade (FTU) experiment is presented. The scanning beam scheme combined with the small dimensions of the beams produces a system with very high spatial resolution: more than 30 adjacent (nonoverlapping) chords sample most of the plasma cross section. A good time resolution is achieved by the use of a proper scanning device, with a scanning frequency >or=8 kHz. Very fast events are measured by three additional fixed lines of sight providing a time resolution >or=100 kHz. The instrument is a two-color medium-infrared-compensated-type interferometer; two wavelengths (colors) are used to measure both the density and the mechanical vibrations of optical components. A CO2 laser (lambda=10.6 microm) is the main light source, and a CO laser (lambda=5.4 microm) is the compensation one. The optical scheme is a double pass Mach-Zehnder type. All the retroreflector mirrors are mounted directly on the FTU mechanical structure thanks to the compensation system that allows for large vibration amplitudes of optical components. Heterodyne detection at 30 and 40 MHz is obtained by frequency shifting the reference beams with two acousto-optic modulators (Bragg cells). Many features are implemented to achieve high measurement accuracy and reliability. A real-time system computes the integral density measured on one of the fixed lines of sight and provides an analog signal for density feedback control. The interferometer was used to measure density profiles both in medium-density discharges (n(e) approximately 10(20) m(-3)) and in high-density pellet injected discharges (n(e) approximately 7-8 x 10(20) m(-3)). The measurement error is approximately 2 x 10(18) m(-2) under optimal conditions but can be higher in some cases, mainly because of the large tilt of the retroreflector mirrors.
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Affiliation(s)
- A Canton
- Consorzio RGX, Associazione Euratom/ENEA, Corsi Stati Uniti, Italy.
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