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关于吸入模型的研究美国 N.J.Bair 简述了有关新模型的成果。为了推导剂量限值,需要描述工作人员吸入、沉积、贮留和转移气载放射性核素的各种参数的标准化数值,由此在辐射防护会议上(1949—1953)提出用一个模型来计算由于吸入放射性气溶胶而产生的剂量,这个最早的模型曾在内照射允许剂量的有关报告中(ICRP,1959)应用。之后,ICRP 第Ⅱ委员会的肺动力学研究组根据化合物在呼吸道中停留趋向的予估计,把它分为 D(从呼吸道清除的半排期小于1天)、W(半排期几天至几月)和 Y(半排期为6个月至几年)三
Study on Inhalation Model N. N. Bert, U.S.A., briefly outlines the new model. In order to derive dose limits, standardized values for various parameters of airborne radionuclides inhaled, deposited, stored and transferred by staff members need to be described, whereby a model was proposed at the Radiation Protection Conference (1949-1953) Inhalation of radioactive aerosol generated dose, this earliest model has been allowed to dose within the relevant reports (ICRP, 1959) application. Subsequently, the ICRP Section II Pneumodynamics Study Group, based on an estimate of the compound’s tendency to stay in the respiratory tract, divides it into Ds (less than 1 day from the respiratory clearance), W (half a few days to several Month) and Y (half-scheduled for 6 months to several years) three