Lately the problem of <sup>3</sup>He replacement for neutron detection stimulated an intense activity research on alternative technologies based on alternative neutron converters. This paper presents briefly the results obtained with new GEM detectors optimized for fast and thermal neutrons. For thermal neutrons, we realized a side-on GEM detector based on a series of boron-coated alumina sheets placed perpendicularly to the incident neutron beam direction. This prototype has been tested at n@BTF photo-production neutron facilty in order to test its effectiveness under a very high flux gamma background. For fast neutrons, we developed new GEM detectors (called nGEM) for the CNESM diagnostic system of the SPIDER NBI prototype for ITER (RFX-Consortium, Italy) and as beam monitor for fast neutrons lines at spallation sources. The nGEM is a Triple GEM gaseous detector equipped with a polyethylene layer used to convert fast neutrons into recoil protons through the elastic scattering process. This paper describes the results obtained by testing a medium size (30 × 25 cm<sup>2</sup> active area) nGEM detector at the ISIS spallation source on the VESUVIO beam line.

Croci, G., Claps, G., Cazzaniga, C., Foggetta, L., Muraro, A., Valente, P. (2015). GEM-based detectors for thermal and fast neutrons. THE EUROPEAN PHYSICAL JOURNAL PLUS, 130(6), 1-8 [10.1140/epjp/i2015-15118-1].

GEM-based detectors for thermal and fast neutrons

CROCI, GABRIELE
Primo
;
CAZZANIGA, CARLO;MURARO, ANDREA
Penultimo
;
2015

Abstract

Lately the problem of 3He replacement for neutron detection stimulated an intense activity research on alternative technologies based on alternative neutron converters. This paper presents briefly the results obtained with new GEM detectors optimized for fast and thermal neutrons. For thermal neutrons, we realized a side-on GEM detector based on a series of boron-coated alumina sheets placed perpendicularly to the incident neutron beam direction. This prototype has been tested at n@BTF photo-production neutron facilty in order to test its effectiveness under a very high flux gamma background. For fast neutrons, we developed new GEM detectors (called nGEM) for the CNESM diagnostic system of the SPIDER NBI prototype for ITER (RFX-Consortium, Italy) and as beam monitor for fast neutrons lines at spallation sources. The nGEM is a Triple GEM gaseous detector equipped with a polyethylene layer used to convert fast neutrons into recoil protons through the elastic scattering process. This paper describes the results obtained by testing a medium size (30 × 25 cm2 active area) nGEM detector at the ISIS spallation source on the VESUVIO beam line.
Articolo in rivista - Articolo scientifico
Physics and Astronomy (all)
English
2015
130
6
1
8
118
none
Croci, G., Claps, G., Cazzaniga, C., Foggetta, L., Muraro, A., Valente, P. (2015). GEM-based detectors for thermal and fast neutrons. THE EUROPEAN PHYSICAL JOURNAL PLUS, 130(6), 1-8 [10.1140/epjp/i2015-15118-1].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/131988
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