Analysis of the evaluation of Radiation Shielding Requirements for Radiotherapy Room—Prat 2: Radiotherapy Room of Electron Linear Accelerators (GBZ/T 201.2—2011): personnel in medical radiation technology service institutions
10.13491/j.issn.1004-714X.2024.04.007
- VernacularTitle:《放射治疗机房的辐射屏蔽规范 第2部分：电子直线加速器放射治疗机房》GBZ/T 201.2—2011标准评价结果分析——放射卫生技术服务机构相关人员
- Author:
Xiaosan XU
1
;
Zechen FENG
2
;
Zipo ZHAI
3
;
Xiang DU
1
;
Chunyong YANG
1
;
Jin WANG
1
Author Information
1. Jiangsu Provincial Center for Disease Control and Prevention Jiangsu Provincial Academy of Preventive Medicine, Nanjing 210009 China.
2. Beijing Center for Disease Prevention and Control, Beijing 100013 China.
3. Hunan Prevention and Treatment Institute for Occupational Diseases, Changsha 410021 China.
- Publication Type:OriginalArticles
- Keywords:
Electron linear accelerator;
Tracking and evaluation;
Standard assessment;
Questionnaire survey
- From:
Chinese Journal of Radiological Health
2024;33(4):390-397
- CountryChina
- Language:Chinese
-
Abstract:
Objective To track and evaluate the scientificity, applicability, and operability of the current implementation of the Radiation Shielding Specifications for Radiotherapy Treatment Rooms—Part 2: Radiotherapy Room of Electron Linear Accelerators (GBZ/T 201.2—2011) among personnel in medical radiation technology service institutions, and to provide scientific evidence for further improvement of the standard. Methods Following the Guidelines for Health Standards Tracking Evaluation Work (WS/T 536—2017) and the project implementation plan, a survey was conducted among 140 personnel engaged in shielding testing and evaluation of electron linear accelerator rooms in medical radiation technology service institutions from 24 provinces in China. The methods of pre-investigation, on-site research, mailing, and email were used to collect data for analysis. Results Questionnaires were completed by 140 respondents from 98 medical radiation service institutions, including 63 public institutions and 77 private institutions. Of the surveyed individuals, 86.68% claimed to have a good or very good understanding of the standard, while only 64.3% had participated in training related to the standard. The survey indicated a low level of mastery of the standard content among the personnel and insufficient efforts in training and dissemination. Although only 3.57% of the respondents considered the existing standard to be inapplicable in the context of new radiotherapy equipment and technological advancements, 95.71%, 93.57%, and 96.43% believed that shielding calculation examples should be added for tomotherapy devices, CyberKnife systems, and ring accelerators with self-shielding bodies. Furthermore, 65% of the respondents felt that neutron shielding should be considered for 10 MV X-ray accelerator rooms. Conclusion The GBZ/T 201.2—2011 has been widely used for radiation protection in radiotherapy. However, it is imperative to update this standard. Additionally, due to the technical complexity of the standard, it can be challenging for professionals to fully understand and implement it. Therefore, publicity goals should be tailored to different groups and the training of key personnel should be strengthened. A nationwide communication and cooperation mechanism should be established to ensure uniform implementation of the standard.
