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ICRP 1990年建议书采用了一种新的剂量量值,即“有效剂量”E,对加权危险度量值有贡献器官的选择及其权重因子改变了。为了进行定量估算,实验对一些不同光子能量和不同外照射几何条件下的有效剂量E进行了估算,并与各个相应的有效剂量当量H_E值作了比较。
The ICRP 1990 Recommendation uses a new dose measure, “Effective Dose” E, which selects the organ that contributes to the weighted risk measure and its weight factor changes. In order to carry on the quantitative estimation, the effective dose E under some different photon energies and different external radiation geometric conditions was estimated and compared with the corresponding effective dose equivalent H_E values.