A GEM-based thermal neutron detector for high counting rate applications

Authors :: Giovanni Grosso
A. Muraro
Alain Menelle
G. Claps
F. Murtas
Gabriele Croci
M. Tardocchi
Giorgia Albani
E. Perelli Cippo
Marco Cavenago
Marica Rebai
Giuseppe Gorini
Carlo Cazzaniga
Cippo, E
Croci, G
Muraro, A
Menelle, A
Albani, G
Cavenago, M
Cazzaniga, C
Claps, G
Grosso, G
Murtas, F
Rebai, M
Tardocchi, M
Gorini, G
Source :: Journal of instrumentation 10 (2015). doi:10.1088/1748-0221/10/10/P10003, info:cnr-pdr/source/autori:Cippo, E. Perelli; Croci, G.; Muraro, A.; Menelle, A.; Albani, G.; Cavenago, M.; Cazzaniga, C.; Claps, G.; Grosso, G.; Murtas, F.; Rebai, M.; Tardocchi, M.; Gorini, G./titolo:A GEM-based thermal neutron detector for high counting rate applications/doi:10.1088%2F1748-0221%2F10%2F10%2FP10003/rivista:Journal of instrumentation/anno:2015/pagina_da:/pagina_a:/intervallo_pagine:/volume:10, Journal of Instrumentation
Abstract: Among other neutron detector systems proposed as a possible substitute for He-3 tubes, GEM-based ones have shown appealing characteristics, when coupled with suitable neutron-converter cathodes. In this paper, we present the results of a GEM-based neutron detector in a high-flux environment (the ORPHEE reactor in Saclay), especially in terms of maximum rate capability and linearity. Recorded data show that the detector can manage neutron counting rates in the order of 50 x 10(6) counts/sec cm(2) while maintaining a reasonable linearity and with no sign of instability.