氚活度浓度标准装置的建立

辐射防护 ›› 2020, Vol. 40 ›› Issue (4): 271-277.

氚活度浓度标准装置的建立

冯梅¹, 韦应靖¹, 李德红², 王勇¹, 张庆利¹, 王明亮¹

1.中国辐射防护研究院,山西太原 030006;
2.中国计量科学研究院,北京 100013

收稿日期:2019-05-14 出版日期:2020-07-20 发布日期:2020-09-21
通讯作者: 韦应靖。E-mail:weiyj531@sina.com
作者简介:冯梅(1988—),女,2014年硕士毕业于中国辐射防护研究院辐射防护及环境保护专业,助理研究员。E-mail:fengmei_cirp@126.com
基金资助:
国家重点研发计划(NQI)项目(课题编号:2017YFF0206304)。

Establishment of tritium activity concentration standard device

FENG Mei¹, WEI Yingjing¹, LI Dehong², WANG Yong¹, ZHANG Qingli¹, WANG Mingliang¹

1.China Institute for Radiation Protection, Taiyuan 030006;
2.National Institute of Metrology, Beijing 100013

Received:2019-05-14 Online:2020-07-20 Published:2020-09-21

摘要/Abstract

摘要： 为解决国内气载氚监测仪量值传递问题,建立了氚活度浓度标准装置,并对其性能进行了测试。经过实验测试,其重复性为0.97%,稳定性为1.1%,可提供的氚活度浓度范围为5.0×10⁴～2.0×10⁸ Bq·m^-3,扩展不确定度U_r=4.6%～5.0%(k=2)。该氚活度浓度标准装置已被授权为社会公用计量标准,可以承担国内氚监测仪的量值传递工作。

关键词: 氚活度浓度, 氚监测仪, 标准装置, 量值传递

Abstract: In order to solve the problem of the value transfer of tritium-in-air monitors in China,tritium activity concentration standard device was built up and the performance of the standard device was tested in laboratory. Testing results show that the device has a repeatability of 0.97%, a stability of 1.1%, activity concentration ranges between 5.0×10⁴ Bq·m^-3 to 2.0×10⁸ Bq·m^-3, and the relative extended uncertainty of 4.6%-5.0% (k=2) was achieved. This tritium activity concentration standard device has been authorized as social public measurement standard, which could be used for value transferring of tritium-in-air monitors in China.

Key words: tritium, activity concentration, tritium-in-air monitor, standard device, value transfer

中图分类号:

TL84文

冯梅, 韦应靖, 李德红, 王勇, 张庆利, 王明亮. 氚活度浓度标准装置的建立[J]. 辐射防护, 2020, 40(4): 271-277.

FENG Mei, WEI Yingjing, LI Dehong, WANG Yong, ZHANG Qingli, WANG Mingliang. Establishment of tritium activity concentration standard device[J]. RADIATION PROTECTION, 2020, 40(4): 271-277.