Survey on the awareness and application of radiation shielding specifications for γ-ray radiotherapy room
10.20001/j.issn.2095-2619.20230216
- VernacularTitle:γ射线源放射治疗机房辐射屏蔽规范认知与应用情况调查
- Author:
Chenzhi JIA
1
;
Chuanpeng HU
;
Xiaojun CHENG
;
Yongzhong MA
;
Xiang DU
;
Zechen FENG
;
Zipo ZHAI
;
Wei LI
;
Zhen ZHANG
Author Information
1. The Third People's Hospital of Henan Province, Henan Key Laboratory of Medicine on Radiobiology and Epidemiology,Zhengzhou, Henan 450052, China
- Publication Type:Journal Article
- Keywords:
Gamma rays;
Radiotherapy;
Radiation;
Shielding;
Standard assessment;
Awareness;
Training;
Practicality;
Rationality
- From:
China Occupational Medicine
2023;50(1):94-98
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To investigate the implementation of GBZ/T 201.3-2014 Radiation Shielding Specification for Radiotherapy Room--Part 3: Radiotherapy Room of γ-ray Sources (hereinafter referred to GBZ/T 201.3-2014). Methods: A total of 129 personnels, who were involved in the approval and supervision of radiation diagnosis and treatment construction projects in 19 provincial administrative agencies, engaged in radiation protection testing and evaluation of γ-ray radiotherapy rooms in radiation health technology service institutions, and used GBZ/T 201.3-2014 in other institutions (environmental impact assessment, education and scientific research), were selected as the participants using a stratified random sampling method. A questionnaire survey was conducted to assess their awareness and application of the standard. Results: The participants' awareness of GBZ/T 201.3-2014 was ≥63.6%, but the training rate was only 9.1% to 50.0%. The familiarity with the various chapters of the standard was over 86.4%. And 42.6% of the participants reported using the standard at least once a year. Regarding the applicability of the standard, all of the participants believed that the standard meets the needs of approval, supervision, testing, or evaluation, and adapts to the updated development of radiotherapy equipment and technology. And 94.6% of the participants believed that the use of the standard could improve the level of protection design and management, and 92.2% believed that the standard was widely applied. Regarding the adequacy of the standard, 97.7% of the participants believed that the standard's reference for ambient dose equivalent rate was reasonable, while 34.1% believed that the standard needs revision. Conclusion: The participants are satisfied with the standard and believe its applicability. They have a good level of awareness of the standard, but there is a room for improvement in their familiarity with the shielding calculation related content of the standard. The promotion, training, and practicality of the standard need to be strengthened.
