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医用诊断X射线机的防护性能及工作场所的放射防护,关系到放射工作人员、被检者及公众的健康与安全.为进一步贯彻国家有关放射防护法规与标准,搞好放射卫生防护工作,1992～1996年对黄山市医用诊断X射线机及其工作场所防护情况进行了调查与监测.结果如下:1 对象与方法对黄山市各级69个X射线机使用单位93台医用诊断X射线机,按GB 8279—87《医用诊断X射线卫生防护标准》规定进行监测;按卫生部令第34号《医用X射线诊断放射卫生防护及影像质量保证管理规定》附件“医用X射线诊断放射卫生防护监测方法”评价.监测内容包括:①有用射线束照射量率;②立位透视防护区监测平面空气照射量率;③卧位透视防护区监测平面空气照射量率;④机房外环境照射量率.监测仪器采用西安生产的FJ—347AX·γ剂量仪和滁州无线电厂生产的NYL—ⅢA照射量计.上述仪器均经刻度校正.
Radiological Protection of Medical Diagnostic X-ray Radiators and Radiological Protection in the Workplace are Related to the Health and Safety of Radiation Workers, Intrusions and the Public In order to further implement the relevant national radiological protection laws and standards and do a good job in radiological and sanitary protection, 1992 Investigation and monitoring of medical diagnostic X-ray machines and their workplace protection in Huangshan were conducted in 1996. The results are as follows: 1 Subjects and Methods 93 medical diagnostic X-ray machines were used on 69 X-ray machines of all levels in Huangshan City, According to GB 8279-87 “medical diagnostic X-ray health protection standards” provisions of the monitoring; according to the Ministry of Health Order No. 34 “medical X-ray diagnosis of radiation health protection and image quality assurance management” annex "medical X-ray diagnosis of radiation health protection monitoring Methods: The monitoring contents include: (1) a useful radiation beam irradiation rate; (2) a direct-see-through protection zone monitoring air exposure rate; (3) a flat-air see-through protection zone monitoring air exposure rate; Monitoring instruments used in Xi’an production FJ-347AX · γ dosimeter and Chuzhou radio plant production NYL-ⅢA irradiation meter. The above instruments are calibrated Positive.