Research on installation and application technology of neutron and gamma dose monitoring equipment

Jun Zou ； Yonggang Huo ； Aiguo Shang ； Jin Qin

《International Core Journal of Engineering》 7卷12期 (2021/12) Pp. 246-255

https://doi.org/10.6919/ICJE.202112_7(12).0032

摘要

This article aims at the lack of scientific specifications and technical standards in the installation location and quantity of the neutron and gamma radiation dose monitoring equipment in the use and installation of the radiation online monitoring system in nuclear sites. Based on the investigation of the actual nuclear equipment storage process, the use of The SuperMC software system simulates and establishes a storage space model that is convenient for calculation. The calculation takes into account a variety of factors Changes to analyze its impact on measurement sensitivity, reliability, etc., to obtain the impact of different environmental conditions on the installation location and number of neutron and gamma radiation dose monitoring equipment in use, and then analyze its impact on actual nuclear safety And radiation protection issues. Some useful conclusions were obtained through research: It is reasonable to install radiation dose monitoring equipment at a height of 1.5 m; in a room with a length and width less than 6 m, the radiation protection safety of personnel should be considered, and the distance between the detector and the source should not be too far; In a room with a length and width greater than 6 m, nuclear safety issues must be considered, gamma radiation monitoring must be paid more attention, and multiple detectors must be installed in multiple locations. The neutron and gamma radiation dose calculation related models and calculation methods and procedures established in this study can provide calculation tools for practical applications. The research results are of guiding significance for the formulation of neutron and gamma radiation dose monitoring equipment usage and installation technical specifications.

關鍵字

Nuclear safety ； radiation online monitoring ； installation and application ； technical research

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