Changes in electrical properties in α- and γ-exposed PADC track detector

被引：6
作者：
Phukan, T
Dwivedi, KK
Goswami, TD
Das, HL [1 ]
机构：
[1] Gauhati Univ, Dept Phys, Gauhati 781014, Assam, India
[2] Arunachal Univ, Itanagar 791111, India
来源：
RADIATION MEASUREMENTS | 2001年 / 33卷 / 06期
关键词：
dielectric constant; alpha-irradiation; d.c; conductivity; dielectric loss; SSNTD;
D O I：
10.1016/S1350-4487(00)00164-5
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 changes in the dielectric properties and temperature dependence of the d.c. conductivity of alpha -exposed poly allyl diglycol carbonate (PADC) have been studied. On a-irradiation the dielectric constant (epsilon') as a function of frequency has been found to decrease significantly. The temperature dependence of resistivity in pristine and gamma -irradiated samples is of the form p(T) = rho (x) exp(T-0/T) which can be attributed to conduction of thermally generated carriers. In case of (gamma + alpha) irradiated samples the temperature dependence of resistivity is of the form rho (T) = rho (x) exp(T-0/T)(1/2) which is due to one-dimensional hopping of carriers. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：841 / 844
页数：4
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