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目的了解蓟州区2011-2015年医疗机构放射工作人员职业外照射个人剂量水平。方法利用Excel软件建立数据库,对751人次个人剂量监测结果进行统计分析。结果蓟州区医疗机构5年间共有751人次接受监测,集体剂量当量为339.03mSv,其中747人次(占99.47%)年个人剂量当量<2 mSv/a;年平均个人剂量为0.451 mSv/a,诊断放射学平均个人剂量最高为0.466 mSv/a,介入放射学平均个人剂量为0.370 mSv/a,放射治疗平均个人剂量最低为0.331mSv/a。结论蓟州区医疗机构放射工作人员个人剂量水平远远低于国家标准要求,工作人员所处的射线场所防护安全有效。
Objective To understand the personal exposure dose of radiation workers in medical institutions in Jizhou area from 2011 to 2015. Methods The software was used to establish a database to analyze the personal dose monitoring results of 751 people. Results A total of 751 person-times of medical institutions in Jizhou were monitored during the five-year period, with a collective dose equivalent of 339.03 mSv, of which 747 (99.47%) had an individual dose equivalent of <2 mSv / year and an average individual dose of 0.451 mSv / The average individual dose for radiology was 0.466 mSv / a, the average individual dose for interventional radiology was 0.370 mSv / a, and the average individual dose for radiation therapy was 0.331 mSv / a. Conclusion The personal dose level of radiation workers in medical institutions in Jizhou is much lower than the national standard, and the radiation protection facilities where the staff members are located are safe and effective.