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苏联从1970年就开始了医疗照射的统计分析.在LIRH用专门程序对诊断X射线照射的数据进行了收集和评价.从统计结果看,俄罗斯在1970～1986年间,X射线的应用频度从每千人1065人次增加至1546人次,几乎为原来的1.5倍,而其所致公众按人口平均的有效剂量当量仅从1.15mSv增加至1.2mSv,变化不大.这种现象是由于大幅度地减少荧光透视的频度造成的,而主要是胸透减少.直到1980年,这种趋势还很强,之后变得较弱.从1970～1986年的诊断辐照所致公众按人口平均的有效剂量当量结果看,只有肺部剂量在稳定地减少,其它器官剂量变
The Soviet Union started the statistical analysis of medical exposure from 1970. The data of diagnostic X-ray irradiation was collected and evaluated by a special procedure in LIRH. From the statistical results, the frequency of X-ray applications in Russia from 1970 to 1986 was The number of 1065 people per 1,000 population increased to 1,546, almost 1.5 times that of the previous year, while the public-based population-based effective dose equivalent increased only slightly from 1.15mSv to 1.2mSv, which is due to the substantial The reduction in the frequency of fluoroscopy was mainly due to a reduction in thoracic penetration, which remained strong until later in 1980. Since then, the population-averaged effectiveness of the diagnostic radiations from 1970 to 1986 Dose Equivalence results, only the lung dose is steadily reduced, other organs dose change