粒度对瓷砖放射性核素比活度影响的探索

The exploration of granularity’s Impact on specific sctivity of radionuclides in ceramic tiles

通过使用低本底多道γ能谱仪对相同平衡时间的不同粒度瓷砖样品进行放射性核素比活度测定,考察不同粒度对瓷砖材放射性核素比活度测定的影响及趋势,并根据实验结果,确定适合日常检测工作需要的合理的样品粒度。

By using low-base multichannel HPGe gamma spectrometer , the specific activity of radionuclides in ceramic tiles with different granularity and same equilibration time is measured. The effect and trend of different granularity on specific activity of radionuclides in ceramic tiles is investigated in this paper and according to the test results, the proper granularity in routine work is confirmed.