Fast neutron detectors with a sub-millimetric space resolution are required in order to qualify neutron beams in applications related to magnetically-controlled nuclear fusion plasmas and to spallation sources. A nGEM detector has been developed for the CNESM diagnostic system of the SPIDER NBI prototype for ITER and as beam monitor for fast neutrons lines at spallation sources. The nGEM is a triple GEM gaseous detector equipped with polypropylene and polyethylene layers used to convert fast neutrons into recoil protons through the elastic scattering process. This paper describes the results obtained by testing a nGEM detector at the ISIS spallation source on the VESUVIO beam line. Beam profiles (σx=14.35 mm, σy=15. 75 mm), nGEM counting efficiency (around 10-4 for 3 MeV

Croci, G., Claps, G., Cavenago, M., Dalla Palma, M., Grosso, G., Murtas, F., et al. (2013). nGEM fast neutron detectors for beam diagnostics. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT, 720, 144-148 [10.1016/j.nima.2012.12.014].

nGEM fast neutron detectors for beam diagnostics

CROCI, GABRIELE
;
PERELLI CIPPO, ENRICO;REBAI, MARICA;GORINI, GIUSEPPE
2013

Abstract

Fast neutron detectors with a sub-millimetric space resolution are required in order to qualify neutron beams in applications related to magnetically-controlled nuclear fusion plasmas and to spallation sources. A nGEM detector has been developed for the CNESM diagnostic system of the SPIDER NBI prototype for ITER and as beam monitor for fast neutrons lines at spallation sources. The nGEM is a triple GEM gaseous detector equipped with polypropylene and polyethylene layers used to convert fast neutrons into recoil protons through the elastic scattering process. This paper describes the results obtained by testing a nGEM detector at the ISIS spallation source on the VESUVIO beam line. Beam profiles (σx=14.35 mm, σy=15. 75 mm), nGEM counting efficiency (around 10-4 for 3 MeV
Articolo in rivista - Articolo scientifico
GEM (Gaselectronmultiplier), Fast neutrons, Efficiency, Simulation;
English
144
148
5
Croci, G., Claps, G., Cavenago, M., Dalla Palma, M., Grosso, G., Murtas, F., et al. (2013). nGEM fast neutron detectors for beam diagnostics. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT, 720, 144-148 [10.1016/j.nima.2012.12.014].
Croci, G; Claps, G; Cavenago, M; Dalla Palma, M; Grosso, G; Murtas, F; Pasqualotto, R; PERELLI CIPPO, E; Pietropaolo, A; Rebai, M; Tardocchi, M; Tollin, M; Gorini, G
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/48126
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