同位素2012，Vol.25Issue(3)：179-181,3.
用于γ辐射成像系统的60Co源容器的设计
The Design of 60Co Container for Gamma Ray Radiography System
刘锡明 1吴志芳 1谈春明 1张颜民1
作者信息
- 1. 清华大学核能与新能源技术研究院,北京100084
- 折叠
摘要
Abstract
Radioactive isotopes are frequently used in radiography systems as they have many advantages for imaging. For example, the intensity and spatial distnbuiion ol the gamma ray emitted are stable. The energy of gamma photons is fairly identical for most frequently used isotopes. The operation and maintenance are easy and require less energy. However, they are difficulties in their application in therms of radiation protection and safety. To solve this problem, it's very important to develop a fully functional, properly radiation protected, safe and reliable working and storage container for the radioactive source. In the 60Co high-precision industrial CT system, based on the corresponding national standards, the 60Co working and storage container was successfully developed by specific design of structure, shielding and security. The air absorbed dose rate was 170 μGy/h at 5 cm distance from the container surface and 5 μGy/h at 1 m distance according to actual measurements. The container has fall function- easy operation, robust construction and multiple safety measures. It meets requirements of the system and ensures operator's safety very well.关键词
60Co/γ辐射成像/放射源容器Key words
60Co/ gamma radiography/ radioactive source container分类
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刘锡明,吴志芳,谈春明,张颜民..用于γ辐射成像系统的60Co源容器的设计[J].同位素,2012,25(3):179-181,3.
