• 辐射探测技术与应用 •

### 在线式放射性液态流出物监测仪研制

1. 中国辐射防护研究院,太原 030006
• 出版日期:2020-11-20 发布日期:2021-01-27
• 作者简介:沈福(1984—),男,2007年毕业于兰州大学核科学与技术学院核物理与核技术专业,副研究员。E-mail:vody111@163.com
• 基金资助:
本研究得到了生态环境部液态流出物示范监测技术研究支持。

### On line continuous liquid radioactive effluent monitoring

SHEN Fu

1. China Institute for Radiation Protection,Taiyuan 030006
• Online:2020-11-20 Published:2021-01-27

Abstract: In this paper,a radionuclide identification continuous liquid radioactive effluent prototype monitor based on NaI detector was developed based on indigenous patent methods for the measurement of the key gamma radionuclide such as 60Co,137Cs in nuclear facilities.The monitor had been tested for more than 500 hours.Results showed it is stable and reliable,and has the ability of radionuclide identification.Through the national level Laboratories verification of the efficiency and 500 hours test,the detection limit of continuous liquid radioactive effluent monitor was achieved around 0.088 Bq/L.The results showed that it improves the detection limit nearly two orders of magnitude lower and the weight decreased one order of magnitude lower.The device can also be applied to monitor key gamma nuclides activity concentration in drinking water.This study has important reference value for the detection of effluent.And the developed instrument could be easier for radiation controlling monitoring because of the lower installation conditions requirements than traditional instruments.

• TL812