手机知网 App
24小时专家级知识服务
打 开
矿业工程
Investigating the minimum detectable activity concentration and contributing factors in airborne gamma-ray spectrometry
In this study, the theory of minimum detectable activity concentration(MDAC) for airborne gamma-ray spectrometry(AGS) was derived, and the relationship between the MDAC and the intrinsic efficiency of a scintillation counter, volume, and energy resolution of scintillation crystals, and flight altitude of an aircraft was investigated. To verify this theory, experimental devices based on NaI and CeBr_3 scintillation counters were prepared, and the potassium, uranium, and thorium contents in calibration pads obtained via the stripping ratio method and theory were compared. The MDACs of AGS under different conditions were calculated and analyzed using the proposed theory and the Monte Carlo method. The relative errors found via a comparison of the experimental and theoretical results were less than 4%. The theory of MDAC can guide the work of AGS in probing areas with low radioactivity.
0 25
开通会员更优惠,尊享更多权益
手机阅读本文
下载APP 手机查看本文
Nuclear Science and Techniques
2021年10期
论文一键智能排版
排版交给我们,时间留给研究
立即查看 >
相似文献
图书推荐
相关工具书

搜 索