Analysis of quality control and protection level test results of medical electron linear accelerators in Shanghai, China
- VernacularTitle:上海市医用电子直线加速器质量控制和防护水平检测结果分析
- Author:
Zhou JIANG
1
;
Jie YAO
1
;
Linfeng GAO
1
;
Shunqi LU
1
;
Weiye YUAN
1
Author Information
- Publication Type:Journal Article
- Keywords: Medical electron linear accelerator; Quality control; Protection level test
- From: Chinese Journal of Radiological Health 2023;32(1):10-14
- CountryChina
- Language:Chinese
- Abstract: Objective To investigate the quality control and protection level of medical electron linear accelerators in Shanghai, China. Methods The startified random sampling method was used to cover tertiary, secondary and ungraded hospitals, and a total of 30 medical electron linear accelerators in 15 hospitals were tested for quality control and protection level according to relevant standards. Results Five medical electron linear accelerators failed the quality control test, with an overall inspection pass rate of 83.3% and a re-inspection pass rate of 100%. The pass rate of flatness of square X-ray irradiation field (5 cm × 5 cm)-(30 cm × 30 cm) was 83.3%, the pass rate of symmetry of square X-ray irradiation field was 96.7%, and other indices were qualified. All medical electron linear accelerator rooms passed the protection test. Conclusion The protection of medical electron linear accelerator rooms in Shanghai meets the requirements of national standards, and some indices do not meet the requirements of national standards in the preliminary inspection. The quality control of medical electron linear accelerators should be further strengthened to ensure the treatment effect of patients.
