摘要
目的分析2009-2014年北京市通州区放射工作人员的外照射个人剂量检测结果,掌握通州区个人剂量监测基本水平。方法使用Li F(Mg,Cu,P)热释光剂量计(TLD)定期监测,送北京市疾控中心检测,使用Excel等程序对数据结果进行分析。结果年有效剂量>5 m Sv的总人数为0,人均年有效剂量为0.18 m Sv/a。各工种绝大多数(80.8%)的年有效剂量不大于测量仪器探测下限MDL(0.136 m Sv),放射治疗工种和探伤工种人均年有效剂量水平比同期的其他辐射工种稍高。结论连续6年监测结果表明通州区放射防护条件安全可靠,放射治疗工种和探伤工种是通州区个人剂量监测的重点。
Objective To analyze testresuhs of personal exposure dose of radiation in Tongzhou district of Beijing during 2009 to 2014,to grasp the basic level of monitoring on personal dose in this area. Methods LiF （Mg, Cu, P）thermoluminescenee dosimeters （TLDs） were used in regular collection of data and Beijing CDC was responsible for testing. Data analysis was conducted with Excel and other procedures. Results The total number of peoples that accepted effective doses of greater than 5mSv annualy was 0. The per capita, effective dose was 0.18mSv/a annually. The annual effective dose among majority （80.8%） workers was less than 0. 136 mSv. The per capita annual effective dose levels in occupations of radiation therapy and nondestructive inspection was slightly higher than that of other radiation types during the same period. Conclusion The results collected from 6 years of continuous monitoring showed that radiation protection in this area was safe and reliable . Occupations of Radiation therapy and nondestructive inspection were the focus of personal dose monitoring in this area.
出处
《首都公共卫生》
2015年第4期147-150,共4页
Capital Journal of Public Health
关键词
个人剂量
放射工作人员
年有效剂量
Personal dose
Radiation workers
Annual effective dose
