NONLINEARITY EFFECTS IN THE RESPONSE OF CADMIUM TELLURIDE NUCLEAR RADIATION DETECTORS

被引:3
作者
HODGKINSON, JA [1 ]
HOWES, JH [1 ]
TOTTERDELL, DHJ [1 ]
机构
[1] AERE,DIV INSTRUMENTAT & APPL PHYS,HARWELL OX11 0RA,OXFORDSHIRE,ENGLAND
来源
NUCLEAR INSTRUMENTS & METHODS | 1979年 / 164卷 / 03期
关键词
D O I
10.1016/0029-554X(79)90082-X
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
An investigation has been made of the count-rate response of several CdTe detectors, to dose-rates in the range 0.1 Rad/h to 80 Rad/h. The relationship was found to be non-linear and it is suggested that this is due to a reduction in the depletion layer thickness resulting from the trapping of charge carriers. Over a limited range of dose-rates the relationship is of the form C = KDn, with a mean value of n of 0.77±0.03. This value is consistent with the limits of n of 0.67 and 1, predicted by a model proposed for the reduction in depletion layer thickness. Radiation induced polarization was also observed but is thought not to be the cause of the non-linear response. © 1979.
引用
收藏
页码:469 / 475
页数:7
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