论文部分内容阅读
由于均匀的大体积放射性废物桶制备困难,放射性废物桶分段γ扫描(SGS)装置的活度探测效率多采用间接的方式进行刻度。壳源法制备的废物桶以线状源为核心,制备简单,结构灵活,是最佳的间接方法之一。本文通过对均匀填充型放射性水溶液桶和壳源法制备的放射性废物桶测量比较,证明壳源法制备的放射性废物桶在进行SGS装置探测效率刻度时与均匀桶是等效的,可作为此类装置探测效率的校准源。
Due to the difficulty in preparing a uniform large-volume radioactive waste bucket, the activity detection efficiency of the radioactive waste bucket gamma scanning (SGS) device is mostly calibrated in an indirect manner. One of the best indirect methods is to prepare the waste bin by shell source method with linear source as the core, simple preparation and flexible structure. In this paper, we compare the measurement of radioactive waste barrels prepared by the uniform filled radioactive water barrels and the shell-source method, and prove that the radioactive waste barrels prepared by the shell-source method are equivalent to the uniform barrels when performing the detection efficiency scale of the SGS device. Calibration source for device detection efficiency.