辐射防护2013，Vol.33Issue(2)：124-128,5.
山西、河南三地土壤样品中239+240Pu、137Cs分析
239+240pu and 137Cs in Soils of Three Sites from Shanxi and Henan
王煜 1王卫宪 1申茂泉 1田梅 1周旭 1吴王锁 1金玉仁1
作者信息
摘要
Abstract
The 239+240Pu activities and 240Pu/239 Pu atom ratios in the soil core samples (0—30 cm) collected from three sites in central China were analyzed using ICP - MS with the depth distribution of 239+240 Pu and 137Cs also investigated. In the three soil core samples, 239+240 Pu activities in the surface layers (0—2 cm) ranged from 0.078 to 0.122 mBq/g, 137 Cs ranged from 1.56 to 2.91 mBq/g, and the activity decrease with the depths. 240Pu/239 Pu atom ratios mean value was 0. 188 ±0.016(the value from global fallout was 0. 180 ± 0.014) , and 137Cs/239+24OPu activity ratios were 34.61 ±5.91 (in July of 1998,the global fallout ratio was 34± 4). The 137Cs and 239+24Opu activities and ratios were at the same level with the same latitude global fallout confirming that the source of these radionuclides was global fallout.
关键词
239+240Pu/137Cs/土壤/240pu/239pu原子比/137Cs/239+240 Pu活度比Key words
239+240 Pu/ 137Cs/ soil/ 240Pu/239 Pu atom ratios/ 137 Cs/239+240Pu activity ratios分类
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王煜,王卫宪,申茂泉,田梅,周旭,吴王锁,金玉仁..山西、河南三地土壤样品中239+240Pu、137Cs分析[J].辐射防护,2013,33(2):124-128,5.
