|
|
|
| A study on simulation test and dose estimation of mobile X-ray industrial inspection accident site |
| GUO Yao, CHEN Fengjiao, SHI Ruifen, LIANG Jianyi, XIE Yingqing, DONG Xuemei, CHEN Songgen |
| Foshan Occupational Disease Prevention and Treatment Institute, Foshan 528000 China |
|
|
|
|
Abstract Objective To explore the simulation detection of mobile X-ray inspection accident site and estimate the radiation dose of workers. Methods The hygiene investigation, engineering analysis and case investigation on accident course and site were investigated, and the accident cause and subsequent problems were comprehensively analyzed. Results When installing the steam pipe network, the energy company hired a third-party inspection company to conduct X-ray industrial flaw detection on pipe network, resulting in the suspected industrial exposure of 87 site workers. According to the on-site simulated reduction detection, the radiation dose equivalent rate was 1 680 μSv/h around 1m away from the flaw detector by the radiation dosimeter, and the X-ray dose rate 4.1 μSv/h around 20 meters away from the flaw detector, and workers would receive the cumulative dose of 14 μSv. Radiation emergency physical examination of 87 workers showed no abnormality. Conclusion This case occurred because the inspection and testing company did not fulfill the obligation of informing before implementing radiation hazards and carried out it randomly. The investor and the employer failed to fulfill the supervision responsibility, which caused the site works to be afraid of radiation and think that they were exposed by mistake, leading to the occurrence of mass incidents. Relevant enterprises should improve the management system and conscientiously perform their respective responsibilities; Strengthen the training and education of radiation protection knowledge for employees to eliminate panic mentality.
|
|
Received: 20 March 2019
|
|
|
|
|
|
[1] 刘智慧,许芝剑,黄薇.移动式工业探伤装置辐射防护要点分析[J].山东工业技术,2019(05):148-150.
[2] 中华人民共和国国家卫生和计划生育委员会. GBZ 117—2015工业X射线探伤放射防护要求[S]. 北京:人民卫生出版社,2015.
[3] 周海伟.工业X射线探伤项目辐射安全和环境影响的分析与评价[J].环境与发展,2018,30(8):15-17.
[4] 黄行.医用X射线机诊断机房屏蔽防护评价与探讨[J].中国辐射卫生,2017,26(1):57-58,62.
[5] 李青,马君健,刘伟,等.某工厂移动顶棚式X射线探伤室环境监测及评价[J].辐射防护,2015,35(2):117-122.
[6] 周忠慈,朱少华.意大利VILLA移动式X射线机充电原理及故障快速检修[J].医疗装备,2015,28(9):41-42.
[7] 向辉云,毕心粼,郑黄婷,等.沉井式X射线探伤室辐射环境影响监测与评价[J].中国辐射卫生,2018,27(6):602-604.
[8] 葛陈程,吕汪洋,石教学,等.应用二维X射线衍射法测定涤纶工业丝结晶和取向行为[J].纺织学报,2018,39(3):19-25.
[9] 刘小莲,麦维基,张素芬.广东省数字X射线摄影患者辐射剂量水平调查[J].中国职业医学,2016,43(5):600-604.
[10] 朱姝,张鑫,钟春明.工业X射线探伤机在现场探伤作业中的辐射防护距离探讨[J].湖南有色金属,2015,31(5):65-67,80. |
|
|
|
