兰州军区医源性辐射防护研究与实践
发布时间:2018-06-15 00:03
本文选题:医源性辐射 + 防护 ; 参考:《中国辐射卫生》2007年03期
【摘要】:目的对兰州军区医疗卫生单位医源性辐射的设备防护性能、射线产生的自由基对DNA损伤、放射工作人员个人剂量监测和放射防护管理等方面进行研究和实践,旨在提高辐射防护水平和质量。方法按照国家相关标准进行放射工作场所辐射防护监测;采用军事医学科学院研制的诊断X射线机质量保证检测箱进行质量保证检测。根据《军队放射防护监督实施办法》进行辐射防护监督管理。结果对62台不达标X射线机进行防护改造,超标点由原来的79%下降至改造后的10.4%。军区医用诊断X射线机房防护状况进行监测。质量保证监测了22台医用诊断X射线机中,除进口的1台摄影机及1台透视机全部指标合格外,其余的均有一项或数项指标未达标。射线产生的自由基使DNA合成持续抑制,为不可恢复的模板型损伤。结论通过长期监督监测,兰州军区放射工作场所环境防护有了较大的改善;诊断X射线机质量保证质量控制水平有待进一步提高。
[Abstract]:Objective to study and practice the equipment protection performance of iatrogenic radiation in medical and health units of Lanzhou military region, DNA damage caused by free radicals produced by radiation, personal dose monitoring and radiation protection management of radiation workers. The aim is to improve the level and quality of radiation protection. Methods Radiological protection monitoring was carried out according to the relevant national standards, and the quality assurance test box of diagnostic X-ray machine developed by the Academy of military Medical Sciences was used for quality assurance inspection. Radiation protection supervision and administration shall be carried out in accordance with the measures for the Supervision of radiation Protection in the Army. Results 62 non-standard X-ray machines were retrofitted and the over-punctuation points decreased from 79% to 10.4%. The medical diagnostic X-ray engine room of the military region was monitored. Quality assurance monitored 22 medical diagnostic X-ray machines. Except for the imported one camera and one fluoroscopy machine, one or more of the other indexes were not up to the standard. The free radicals produced by radiation inhibit DNA synthesis continuously and are unrecoverable template damage. Conclusion through long-term supervision and monitoring, the environmental protection in the radiation workplace of Lanzhou military region has been greatly improved, and the quality assurance quality control level of diagnostic X-ray machine needs to be further improved.
【作者单位】: 兰州军区放射卫生防护监测中心 兰州军区放射卫生防护监测中心 兰州军区放射卫生防护监测中心 兰州军区放射卫生防护监测中心 兰州军区放射卫生防护监测中心
【分类号】:R82
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