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至今,国内外学者对建筑材料中放射性水平及其辐射效应关系等作了大量工作。UNSCEAR对天然辐射源的照射作了多次评述。为了探讨我市建筑材料中放射性核素含量,我们于1991年开始对建材和建筑物室内外辐射水平作了监测,结果如下。仪器与方法一、测量仪器1.采用上海电子仪器厂生产的FD-30B型数字γ辐射仪,经核工业部航天测试遥感中心和河北省放射卫生研究所进行了现场比对和刻度修正,后经中国计量研究院测试。2.核素分析采用CANBERRA SERIES-35PLUSS 35195(U.S.A)经中国计量院测试。
So far, a great deal of work has been done by domestic and foreign scholars on the radioactive levels in building materials and their radiation effects. UNSCEAR made several comments on the exposure of natural sources. In order to investigate the radionuclide content of our building materials, we started to monitor the indoor and outdoor radiation levels of building materials and buildings in 1991 and the results are as follows. Instruments and Methods I. Measuring Instruments 1. Using the FD-30B digital gamma radiometer manufactured by Shanghai Electronic Instrument Factory, field alignment and calibration were carried out by the Aerospace Testing and Remote Sensing Center of the Ministry of Nuclear Industry and Hebei Institute of Radiological Health. After that, The China Institute of Measurement test. 2. Nuclide analysis using CANBERRA SERIES-35PLUSS 35195 (U.S.A) by the China Metrology Institute test.