( 4 ) it has succeeded in the technology of a computer spectrum - stabilizing method to solve drift problems in automatic analysis of gamma - ray spectrum . the study of portable gamma - ray data acquisition system is successful ( 4 )完成了伽玛全谱测量中的软件稳谱模块的设计，摒弃了放射性核素源，解决了伽玛全谱测量中的谱漂移问题。
