Online gamma dose-rate measurements by means of a self-powered gamma detector

被引：8
|
作者：
Van Nieuwenhove, R [1 ]
Vermeeren, L [1 ]
机构：
[1] SCK CEN, B-2400 Mol, Belgium
来源：
IEEE TRANSACTIONS ON NUCLEAR SCIENCE | 2002年 / 49卷 / 04期
关键词：
dosimetry; gamma ray detectors; nuclear measurements; self-powered detectors;
D O I：
10.1109/TNS.2002.801486
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Gamma dose-rate profiles have been measured by means of a self-powered gamma detector (SPGD) in a gamma irradiation facility using Co-60 sources, situated in the side pool of the BR2 materials testing reactor. Because of its small size (diameter of only 4 mm), the SPGD is ideally suited to perform very localized gamma dose-rate measurements. It has been shown that the SPGD can provide precise relative measurements of the local gamma dose rate in the range 0.5-20 kGy/h. A very detailed Monte Carlo code has been developed to relate the gamma dose rate (for a given gamma spectrum) to the current induced by the SPGD. The obtained conversion factor could thus be used to determine the absolute gamma dose rate.
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页码：1914 / 1918
页数：5
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