GRAPHITE CALORIMETER FOR ABSORBED DOSE STANDARDIZATION OF GAMMA-RADIATION PROCESSING PLANTS

被引：1

作者：

YOUSSEF, SK ^{[1
]}

RAO, ISS ^{[1
]}

VOHRA, KG ^{[1
]}

机构：

[1] BHABHA ATOM RES CTR,DIV RADIOL PROTECT,RADIOL STANDARDS LAB,BOMBAY 400085,INDIA

来源：

INTERNATIONAL JOURNAL OF APPLIED RADIATION AND ISOTOPES | 1981年 / 32卷 / 12期

关键词：

Dosimetry; -; Graphite;

D O I：

10.1016/0020-708X(81)90070-3

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：

One of the most important requirements for high level dosimetry of gamma -irradiation plants is the standardization of absorbed dose rate in a reference medium under conditions similar to those encountered in product irradiation. A four element graphite calorimeter consisting of a cylindrical absorber, jacket, mantle and shield was developed for direct measurement of absorbed dose at the center of a 30 cm diameter and 30 cm height graphite phantom irradiated to **6**0Co gamma -radiation in a radiation processing plant. The accuracy of the absorbed dose to graphite was estimated to be plus or minus 0. 8% at a dose level of 40 multiplied by 10** minus **2 Gy s** minus **1 (40 rad/s). The thermal kinetics of the calorimeter have been investigated.

引用

页码：869 / 875

页数：7