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目的 对湖北省 2 9台60 Co治疗机应用和应用质量进行年检。方法 按国家标准规定的方法进行。贮存位机头漏射线、准直器对有用射线的透过率及放射性物质污染等性能指标全部合格。同时发现 :有用射线不对称性及半影合格率较低。结论 医院必须重视设备维护保养 ,配备剂量仪 ,每月定期进行治疗剂量刻度等措施
Objective To carry out annual inspection on the application and quality of 29 Co 60 treatment machines in Hubei Province. Methods according to the provisions of national standards. Storage bit head leak radiation, collimator for useful ray transmittance and radioactive material pollution and other performance indicators all qualified. Also found: useful radiation asymmetry and penumbra pass rate lower. Conclusion The hospital must pay attention to equipment maintenance, equipped with dosimeters, regular monthly dose scale and other measures