In this paper it is shown that solid-state cadmium-zinc-telluride (CZT) is a promising photon detector for neutron spectroscopy in a wide energy interval, ranging from thermal (similar to25 meV) to epithermal (similar to70 eV) neutron energies. In the present study two CZT detectors were tested as part of the inverse-geometry neutron spectrometer VESUVIO operating at the ISIS pulsed neutron source. The response of the CZT detector to photon emission from radiative neutron capture in U-238 was determined by biparametric measurements of neutron time of flight and photon energy. The scattering response function F(y) from a Pb sample has been derived using both CZT and conventional Li-6-glass scintillator detectors. The former showed both an improved signal to background ratio and higher efficiency as compared to Li-6 glass, allowing us to measure F(y) up to the fourth U-238 absorption energy (E-r=66.02 eV). Due to the small size of CZT detectors, their use is envisaged in arrays, with high spatial resolution, for neutron-scattering studies at high energy ((h) over bar omega>1 eV) and low wavevector (q<10 \&ANGS;(-1)) transfers.

Andreani, C., D'Angelo, A., Gorini, G., Imberti, S., Pietropaolo, A., Rhodes, N., et al. (2004). CdZnTe gamma detector for deep inelastic neutron scattering on the VESUVIO spectrometer. APPLIED PHYSICS. A, MATERIALS SCIENCE & PROCESSING, 78(6), 903-913 [10.1007/s00339-003-2087-7].

CdZnTe gamma detector for deep inelastic neutron scattering on the VESUVIO spectrometer

ANDREANI, CARLA;D'ANGELO, ANNALISA;IMBERTI, SILVIA;PIETROPAOLO, ANTONINO;SENESI, ROBERTO;
2004

Abstract

In this paper it is shown that solid-state cadmium-zinc-telluride (CZT) is a promising photon detector for neutron spectroscopy in a wide energy interval, ranging from thermal (similar to25 meV) to epithermal (similar to70 eV) neutron energies. In the present study two CZT detectors were tested as part of the inverse-geometry neutron spectrometer VESUVIO operating at the ISIS pulsed neutron source. The response of the CZT detector to photon emission from radiative neutron capture in U-238 was determined by biparametric measurements of neutron time of flight and photon energy. The scattering response function F(y) from a Pb sample has been derived using both CZT and conventional Li-6-glass scintillator detectors. The former showed both an improved signal to background ratio and higher efficiency as compared to Li-6 glass, allowing us to measure F(y) up to the fourth U-238 absorption energy (E-r=66.02 eV). Due to the small size of CZT detectors, their use is envisaged in arrays, with high spatial resolution, for neutron-scattering studies at high energy ((h) over bar omega>1 eV) and low wavevector (q<10 \&ANGS;(-1)) transfers.
Pubblicato
Rilevanza internazionale
Articolo
Sì, ma tipo non specificato
Settore FIS/03 - Fisica della Materia
English
Con Impact Factor ISI
Andreani, C., D'Angelo, A., Gorini, G., Imberti, S., Pietropaolo, A., Rhodes, N., et al. (2004). CdZnTe gamma detector for deep inelastic neutron scattering on the VESUVIO spectrometer. APPLIED PHYSICS. A, MATERIALS SCIENCE & PROCESSING, 78(6), 903-913 [10.1007/s00339-003-2087-7].
Andreani, C; D'Angelo, A; Gorini, G; Imberti, S; Pietropaolo, A; Rhodes, N; Schooneveld, E; Senesi, R; Tardocchi, M
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/31502
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