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25 April 2024 |
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Fast-neutron induced background in LaBr3:Ce detectors | | J. Kiener
; V. Tatischeff
; I. Deloncle
; N. de Séréville
; P. Laurent
; C. Blondel
; M. Chabot
; R. Chipaux
; A. Coc
; S. Dubos
; A. Gostojic
; N. Goutev
; C. Hamadache
; F. Hammache
; B. Horeau
; O. Limousin
; S. Ouichaoui
; G. Prévot
; R. Rodríguez-Gasén
; M. S. Yavahchova
; | | Date: |
1 Dec 2015 | | Abstract: | The response of a scintillation detector with a cylindrical 1.5-inch LaBr3:Ce
crystal to incident neutrons has been measured in the energy range En = 2-12
MeV. Neutrons were produced by proton irradiation of a Li target at Ep = 5-14.6
MeV with pulsed proton beams. Using the time-of-flight information between
target and detector, energy spectra of the LaBr3:Ce detector resulting from
fast neutron interactions have been obtained at 4 different neutron energies.
Neutron-induced gamma rays emitted by the LaBr3:Ce crystal were also measured
in a nearby Ge detector at the lowest proton beam energy. In addition, we
obtained data for neutron irradiation of a large-volume high-purity Ge detector
and of a NE-213 liquid scintillator detector, both serving as monitor detectors
in the experiment. Monte-Carlo type simulations for neutron interactions in the
liquid scintillator, the Ge and LaBr3:Ce crystals have been performed and
compared with measured data. Good agreement being obtained with the data, we
present the results of simulations to predict the response of LaBr3:Ce
detectors for a range of crystal sizes to neutron irradiation in the energy
range En = 0.5-10 MeV | | Source: | arXiv, 1512.0305 | | Services: | Forum | Review | PDF | Favorites | |
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