辐射防护2012，Vol.32Issue(3)：155-159,164,6.
BH1307型康普顿散射谱仪的屏蔽优化
Shield Optimization of BH1307 Compton Scattering Spectrometer
摘要
Abstract
The BH1307 Compton Scattering Spectrometer produced by Beijing Nuclear Instrument Factory uses a gamma source with high intensity that should be shielded in a lead chamber. When the chamber was closed, a dose rate around the chamber the energy spectra of the radiation environment were was detected evidently. Further measurements to carried out using NaI （T1） scintillation spectro- meter. An unknown ray was found, its energy differs from that of the gamma source. Further analysis indicates that the side radiation mainly resulted from the transmission of gamma ray, and its radiant intensity was relatively weak. However, the front radiation was mainly result of Compton scattering at the angle 90~ between the gamma ray and internal material, and the scattered rays emitted through the emission hole with high intensity. Therefore, the findings reported here suggest that a closed lead shielded chamber should be further screened, especially in the direction of the emission hole.关键词
康普顿散射/y射线/辐射环境/能谱分析Key words
compton scattering/y-ray/radiation environment/energy spectrum analysis分类
能源科技引用本文复制引用
孙立杰,徐静,孟祥鹏,刘超卓..BH1307型康普顿散射谱仪的屏蔽优化[J].辐射防护,2012,32(3):155-159,164,6.基金项目
中国石油大学（华东）实验教学改革项目 （）
2011年校级大学生创新创业训练计划创新训练项目（20111137）. （）
