Evaluation of the implementation of GBZ/T 201.5-2015 Radiation shielding requirements for radiotherapy rooms-Part 5: Radiotherapy room of proton accelerators
10.13491/j.issn.1004-714X.2025.04.013
- VernacularTitle:GBZ/T 201.5—2015《放射治疗机房的辐射屏蔽规范 第5部分：质子加速器放射治疗机房》实施评估
- Author:
Zhibin ZHANG
1
;
Bin BAI
1
;
Hailiang LI
2
;
Jie YAO
3
;
Lantao LIU
4
;
Jiayi MA
5
;
Yongzhong MA
1
Author Information
1. Beijing Center for Disease Prevention and Control/School of Public Health, Capital Medical University, Beijing 100013, China.
2. Institute of Radiation Medicine, Shandong Academy of Medical Sciences, Jinan 250062, China.
3. Shanghai Center for Disease Prevention and Control, Shanghai 200336, China.
4. Beijing Institute of Chemical Industry Occupational Disease Prevention and Treatment , Beijing 100093, China.
5. Jiangsu Provincial Center for Disease Prevention and Control, Nanjing 210009, China.
- Publication Type:OriginalArticles
- Keywords:
Proton accelerator;
Radiotherapy room;
Assessment of standard implementation;
Technical indicator
- From:
Chinese Journal of Radiological Health
2025;34(4):546-552
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the current status in the implementation of GBZ/T 201.5-2015 Radiation shielding requirements for radiotherapy rooms-Part 5: Radiotherapy room of proton accelerators, identify issues in the application of its technical indicators, and provide a basis for the in-depth implementation and further revision of the standard. Methods In accordance with the Standardization Law of the People’s Republic of China and the Guidelines for Health Standards Tracking Evaluation (WS/T 536-2017), a combination of cluster sampling and stratified sampling methods was employed to select professionals involved in proton accelerator radiotherapy devices and facilities in three provinces (or municipalities directly under the central government) as the subjects of the survey. A questionnaire was developed to collect basic information about the subjects and their understanding and application of the technical indicators in the standard. A standard evaluation indicator system with a total score of 100 points was established to score the implementation of the standard (40 points), the technical content (30 points), and the effectiveness of the implementation (30 points). Results A total of 169 professionals from 107 institutions participated in the survey, with 79.88% of the respondents having at least 5 years of experience in radiation therapy and 74.56% holding intermediate or higher professional titles. The score of standard implementation was 18.3 points. The awareness rate exceeded 80%, indicating a high level of awareness about the standard. However, the scores for the dissemination and application of the standard were relatively low, accounting for 28% and 32% of their respective full marks. The technical content of the standard and the effectiveness of its implementation scored 27.0 and 26.6 points, respectively. The overall score in the evaluation of standard implementation was 72 points, with scores of 68.6, 72.3, and 75.0 for Beijing City, Shanghai City, and Jiangsu Province, respectively. Conclusion GBZ/T 201.5-2015 Radiation shielding requirements for radiotherapy rooms-Part 5: Radiotherapy room of proton accelerators is scientific and operable, and it is well-coordinated with relevant laws and standards. However, considering the development in FLASH technology and multi-chamber radiotherapy room, it is necessary to revise and improve the standard.
