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1.放射源和探测系统 利用34mCi ~(238)Pu平面源分析从K~Y和从La~U的元素;利用30mCi~(241)Am环状源分析从Sr~Ba
1. Radioactive source and detection system The elements from K ~ Y and from La ~ U were analyzed using 34mCi ~ (238) Pu planar source. The emission from Sr ~ Ba