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目的探讨介入放射学工作人员受照剂量的调查水平,为其个人剂量监测中可疑数据的调查提供科学方法。方法收集2013年度13家医院介入放射学工作人员4个周期1 219对内、外热释光个人剂量计(TLD)的受照剂量监测资料,经统计分析甄别其TLD佩带情况。选取正确佩带TLD人员的受照剂量数据计算、确定其调查水平。对可疑数据,根据TLD佩带情况,结合内、外TLD的受照剂量确定调查内容。结果内、外TLD的受照剂量范围分别为最低探测水平(MDL)~17.91和MDL~25.57 m Sv。1 219对TLD中,正确佩带307对(占25.18%),对调佩带81对(占6.64%),混合佩带287对(占23.54%),不佩带内TLD者4对(占0.33%),540对无法判定佩带情况(占44.30%)。内TLD剂量的调查水平为>2.27 m Sv,外TLD调查水平最小值为0.04 m Sv,最大值为46.23m Sv。根据介入放射学工作人员受照剂量的可疑数据确定相应的调查内容。结论应加强对介入放射学工作人员及其管理人员的辐射防护培训,定期修订其受照剂量的调查水平,当其受照剂量低于或高于调查水平时,应进行相应调查。
Objective To investigate the level of investigation on the dose of interventional radiology staff and provide a scientific method for the investigation of suspicious data in personal dose monitoring. Methods The data of dose monitoring of internal and external thermoluminescence personal dosimeters (TLDs) were collected from 13 hospitalized interventional radiology staffs in 2013 in 2013. The data of TLD wears were collected through statistical analysis. Select the correct dose of radiation dose of TLD personnel to calculate, determine the level of their investigation. The suspicious data, according to TLD wear, combined with internal and external TLD doses to determine the investigation content. Results The dose range of the inner and outer TLDs were respectively MDL 17.91 and MDL 25.57 mSv. Of the 219 pairs of TLDs, 307 pairs (25.18%) were correctly worn, 81 pairs (6.64%) of match wear, 287 pairs (23.54%) of mix wear, 4 pairs (0.33%) of women who did not wear inner TLD, Can not determine the situation of wearing (accounting for 44.30%). The investigation of internal TLD dose was> 2.27 m Sv, the minimum of TLD survey was 0.04 m Sv and the maximum was 46.23 m Sv. Based on suspicious data on exposure dose of interventional radiology staff to determine the appropriate survey content. Conclusion Radiation protection training for interventional radiology staff and their managers should be strengthened, and the level of investigation on their exposure dose should be revised regularly. When the dose of irradiation dose is lower or higher than the level of investigation, investigation should be carried out accordingly.