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英国医学物理部门对2339名志愿者在切尔诺贝利事故后用全身计数器进行了全国性的体内放射性调查.事故后不久,受污染的工作人员体内~(137)Cs/~(134)Cs为2.0,该比值会随时间而增大,而与生物或生态学半衰期无关.监测大多用装有降低本底屏蔽装置的可移式全身计数器,放射性铯测定下限按95%可信度估算为30Bq,按统一要求测量和用标准体模来校验刻度.在监测的1897名成人和442名儿童及婴儿中,放射性铯水平范围为未检出(主要为婴儿)4149Bq(一名威尔士男子).各地体内放射性铯均以男子最高,按妇女、学龄儿童和婴儿依次递减.若在这些年龄组中用各人放射性铯体负荷除以~(40)K体负荷,则比值较为一致.监测结果表明,各地平均铯钾比
British medical physics conducted nationwide in vivo radiological surveys of 2339 volunteers using a total body counter after the Chernobyl accident. Shortly after the accident, contaminated workers were challenged with ~ (137) Cs / ~ (134) Cs Is 2.0, which increases with time, regardless of biological or ecological half-life.Most of the monitoring is performed with a portable whole-body counter equipped with a reduced background shielding device, the lower limit of the radioactive cesium determination is estimated as 95% confidence level 30Bq, calibrated by uniform requirements and calibrated using a standard phantom. Of the 1897 adults and 442 children and infants monitored, the level of radioactive cesium was 4149Bq (a Welsh man) undetected (mainly infants) Radioactive cesium in all places were highest in men, decreasing in order of women, school-age children and infants, with a consistent ratio of radioactive cesium load divided by ~ (40) K body load in these age groups. Show that the average cesium potassium ratio around