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钋—210是铀—镭系衰变链中的核素,被列为极毒类放射性核素。人摄入~(210)Po的案例国内外已有报道。本文报告三例~(210)Po内污染者的剂量资料和医学观察的初步结果。污染经过和剂量资料 1.污染经过 1981年8月31日和9月4日,工作人员x在实验楼二层某房间二次制备硝酸钋液体源。9月5日发现有污染。9月8日进行了全面的α表面污染监测。发现实验台、地面、通风柜等处均有不同程度的污染,平均污染水平达54526 α粒子数/100Cm~2·2π·分。在该实
钋 -210 is a nuclide in the decay chain of uranium-radium and is classified as an extremely toxic radionuclide. Human intake of ~ (210) Po cases have been reported at home and abroad. This article reports on the dose data and preliminary findings of medical observations in three cases of ~ (210) Po contaminants. Pollution and dose data 1. Pollution After August 31, 1981 and September 4, staff x in the laboratory building on the second floor of a room nitrate nitrate liquid source. September 5 found to be contaminated. September 8 conducted a comprehensive monitoring of α surface contamination. Found that the experimental platform, the ground, fume hoods and other places have different levels of pollution, the average pollution level of 54526 α particles / 100Cm ~ 2 · 2π · minutes. In the real