A CR-39 based thermal neutron dosimeter

被引：3
|
作者：
Ahmad, N
Matiullah
Kenawy, MA
机构：
[1] Ctr Nucl Studies, Islamabad, Pakistan
[2] Ain Shams Univ, Univ Coll Girls, Dept Phys, Cairo, Egypt
来源：
RADIATION MEASUREMENTS | 1997年 / 28卷 / 1-6期
关键词：
CR-39; LiF films; activation foils; personal neutron dosimetry; vacuum coating unit; beta-gamma coincidence;
D O I：
10.1016/S1350-4487(97)00111-X
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：
Both chemically and electrochemically etched CR-39 detectors are used for the detection of fast neutrons. In practical situations, fast neutrons are always accompanied by thermal neutrons. Therefore, the response of the CR-39 based dosimeter has to be extended to thermal neutrons. To do so, a radiator/converter libe LiF is introduced in front of the CR-39 detector and an optimum thickness of the LiF film is determined so that a response similar to that of the fast neutrons is achieved. Thin films of natural LiF were prepared and the response of the CR-39 detector was studied as a function of the film thickness.
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页码：413 / 414
页数：2
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