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经过几年的努力,本实验室建立了防护级照射量次级标准。它包括过滤X射线参考辐射、同位素源γ射线参考辐射和一个100cm~3塑料薄壁电离室。过滤X射线参考辐射为复制国际标准化组织制定的标准ISO_(4037)的四个规范,即高照射量率、宽谱、窄谱和低照射量率。测谱证明,除110kV—点分辨率略高于标准规定值外,其他各项都满足标准要求。同位素源参考辐射是一个自己设计的照射装置,
After several years of efforts, this laboratory has established a secondary level of protection level exposure. It includes filtered X-ray reference radiation, isotope gamma radiation reference radiation and a 100cm-3 plastic thin-walled ionization chamber. Filtered X-ray reference radiation is a reproduction of the four norms of the standard ISO_ (4037) developed by the International Organization for Standardization, namely high radiation rate, wide spectrum, narrow spectrum and low radiation rate. Measured spectrum, in addition to 110kV-point resolution slightly higher than the standard value, the other all meet the standard requirements. Isotope reference radiation is a self-designed irradiation device,