锆英砂及锆英粉的放射性测试  

The Radioactivity Test of Zircon Ore and the Powder

作　　者：于非[1] 黄叶群 凌守云 Yu Fei;Huang Yequn;Ling Shouyun(South China University of Technology,Guangzhou 510640;QingyuanJinsheng Zr&Ti resources Co.,Ltd.,Qingyuan 511853,China)

机构地区：[1]华南理工大学,广东广州510640 [2]清远市金盛锆钛资源有限公司,广东清远511853

出　　处：《广东化工》2021年第5期165-166,共2页Guangdong Chemical Industry

摘　　要：文章对锆英矿砂及其矿粉的放射性测试中的一些问题进行了论述、研究和探讨。结果表明:采用碘化钠γ能谱仪测试锆英砂、锆英粉及硅酸锆的放射性,测试时间可以定为5000s;距离探测器表面高度不同的同质量同形状的锆英砂,测得的放射性结果是不同的;锆英砂、锆英粉及硅酸锆的放射性测试结果,受其粒径大小、堆积密度以及探测器和样品盒带来的空间因素等方面的影响;对于同一种样品,装样量不同,也会带来测试结果的偏差。This paper discusses, studies and analyze some problems in the radioactivity test of zircon ore and the powder. The results show that the radioactivity of zircon sand, zircon powder and zirconium silicate can be measured by sodium iodide gamma-ray spectrometer for 5,000 seconds, the results of zircon sand of the same quantity and shape with different height from the surface of the detector are different. The results of radioactivity test of zircon sand, zirconium powder and zirconium silicate are affected by the particle size, bulk density and the spatial factors brought by the detector and the sample box;for the same substance, the different loading amount will also lead to the deviation of test results.

关 键 词：锆英砂 硅酸锆 放射性 Γ能谱仪 

分 类 号：O65[理学—分析化学]