摘要
地壳中含有很多放射性元素,镭元素是其中之一。镭半衰期长,有剧毒,水中镭含量的分析对环境保护和职业卫生防护具有重要意义。本文参照国标GB11214-1989,优化仪器参数中阈值、负高压和标定闪烁室k值,更为准确的测量水中镭含量。为准确的标定仪器条件,精确的监测水中226Ra具有实践意义。
Radium is one of the radioactive elements in the crust.Radium has a long half-life and highly toxic,which is inhaled by human body to form internal irradiation and even induce cancer.Therefore,the analysis of radium content in water is of great significance for environmental protection and occupational health protection.Referring to document GB 11214-1989,the threshold value,negative high pressure and calibrate the K value of scintillation chamber were optimized for measuring radium content in water more accurately.Accurate calibration of instrument conditions and accurate monitoring of 226Ra in water had provided practical significance.
作者
赵晓晖
Zhao Xiaohui(Analysis and Testing Cente,270 Research Institute of Nuclear Industry,Nanchang 330200,China)
出处
《广东化工》
CAS
2019年第14期173-174,169,共3页
Guangdong Chemical Industry
关键词
镭
硫酸钡共沉淀
闪烁室
radium
barium sulfate coprecipitation
scintillation chamber
