scintillation yield;
energy resolution;
radiation damage;
D O I:
10.1016/j.radmeas.2007.11.017
中图分类号:
TL [原子能技术];
O571 [原子核物理学];
学科分类号:
0827 ;
082701 ;
摘要:
The consequences of irradiating empty set 1 in x 1 in LaBr3: 5%Ce crystals with 0.1-100kGy gamma radiation have been investigated. The material displays lower photoelectron yield and poorer energy resolution after exposure to a (60)Co source. The magnitude of the damage is larger in a packed scintillator. In addition to a prompt effect following gamma irradiation, consisting of a deterioration in both photoelectron yield and energy resolution, there is a delayed effect over a timescale of several days, resulting in a further decrease of yield, but accompanied by a partial recovery of resolution. (C) 2007 Elsevier Ltd. All rights reserved.