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Cecconello M, Miklaszewski R, Marocco D, Conroy S, Moro F, Esposito B, Podda S, Bienkowska B, Szydlowski A. Strategy and guidelines for the calibration of the ITER Radial Neutron Camera. FUSION ENGINEERING AND DESIGN 2019. [DOI: 10.1016/j.fusengdes.2019.03.099] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Rebai M, Bertalot L, Brichard B, Brolatti G, Croci G, Esposito B, Fernandes A, Giacomelli L, Gorini G, Krasilnikov V, Lengar I, Marocco D, Muraro A, Nocente M, Pereira RC, Perelli Cippo E, Rigamonti D, Rzadkiewicz J, Sousa J, Tardocchi M. Design of gamma-ray spectrometers optimized for fast particle studies at ITER. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2018; 89:10I126. [PMID: 30399810 DOI: 10.1063/1.5038963] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 06/01/2018] [Indexed: 06/08/2023]
Abstract
A set of gamma ray spectrometers has been designed for ITER within the Radial Gamma Ray Spectrometer (RGRS) project. The aim of this project is designing a system, integrated with the ITER radial neutron camera, which is able to measure the gamma-rays emitted from the plasma with a good energy resolution (about 1.5% at 4.44 MeV) and at high counting rates (in excess of 1 MHz). The RGRS will be able to operate both in the D phase and in the full-power DT phase and will measure gamma rays from (i) reactions between fast ions, such as α particles, and light impurities and (ii) bremsstrahlung emission generated by runaway electron interactions with both plasma bulk and tokamak walls. The RGRS detectors are arranged in nine lines of sights (able to cover a radial region with r < a/3), each featuring a large LaBr3 scintillator crystal. Due to the high neutron flux and magnetic field, several solutions have been adopted to guarantee a good signal to background ratio and MHz counting rate capabilities. The RGRS is capable to combine space and energy distribution measurements of α particles and runaway electrons, which will help the study of the fast particle physics in a burning plasma.
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Affiliation(s)
- M Rebai
- Istituto di Fisica del Plasma, Consiglio Nazionale delle Ricerche, Milano, Italy
| | - L Bertalot
- ITER Organization, Saint Paul Lez Durance Cedex, France
| | | | - G Brolatti
- ENEA C. R. Frascati, Dipartimento FSN, Frascati, Italy
| | - G Croci
- Dipartimento di Fisica "G. Occhialini," Università di Milano-Bicocca, Milano, Italy
| | - B Esposito
- ENEA C. R. Frascati, Dipartimento FSN, Frascati, Italy
| | - A Fernandes
- Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
| | - L Giacomelli
- Istituto di Fisica del Plasma, Consiglio Nazionale delle Ricerche, Milano, Italy
| | - G Gorini
- Istituto di Fisica del Plasma, Consiglio Nazionale delle Ricerche, Milano, Italy
| | - V Krasilnikov
- ITER Organization, Saint Paul Lez Durance Cedex, France
| | - I Lengar
- Jozef Stefan Institute, Ljubljana, Slovenia
| | - D Marocco
- ENEA C. R. Frascati, Dipartimento FSN, Frascati, Italy
| | - A Muraro
- Istituto di Fisica del Plasma, Consiglio Nazionale delle Ricerche, Milano, Italy
| | - M Nocente
- Dipartimento di Fisica "G. Occhialini," Università di Milano-Bicocca, Milano, Italy
| | - R C Pereira
- Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
| | - E Perelli Cippo
- Istituto di Fisica del Plasma, Consiglio Nazionale delle Ricerche, Milano, Italy
| | - D Rigamonti
- Istituto di Fisica del Plasma, Consiglio Nazionale delle Ricerche, Milano, Italy
| | - J Rzadkiewicz
- National Center for Nuclear Research, NCBJ, Swierk, Warsaw, Poland
| | - J Sousa
- Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
| | - M Tardocchi
- Istituto di Fisica del Plasma, Consiglio Nazionale delle Ricerche, Milano, Italy
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