论文部分内容阅读
【英国《核能》1987年第2期第59页报道】目前,英国居民所受人工源辐射剂量的最大部分来自医学应用。在这部分剂量中,诊断用X射线所占比重最大,放射性药物所占比重很小。据英国国家放射防护局估计,辐射的医学应用造成的有效剂量当量为0.3毫希/人年,而自然本底造成的则为1.9毫希。医学应用造成的0.3毫希,由以下4个部分
(UK Nuclear Energy, 1987, No 2, p. 59) Currently, the largest fraction of artificial radiation exposure to UK residents comes from medical applications. In this part of the dose, the largest proportion of diagnostic X-ray, radioactive drugs accounted for a small proportion. The National Radiation Protection Agency estimates that the effective dose equivalent for medical applications of radiation is 0.3 milliwatts per person-year, compared with 1.9 milliseconds for natural background. Medical applications are caused by 0.3 mSix, consisting of the following 4 sections