MASS-SPECTROMETRIC ANALYSIS OF PLUTONIUM IN SOILS NEAR SELLAFIELD

被引:23
作者
MCCARTHY, W
NICHOLLS, TM
机构
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D O I
10.1016/0265-931X(90)90032-Q
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The 240/239 atom ratios measured in plutonium separated from soils close to Sellafield Works indicate the presence of low burn-up plutonium, probably originating from atmospheric releases in the 1950s. The major contribution to the corresponding 241/239 atom ratios is from higher burn-up plutonium released in the 1970s. The isotopic ratios measured in sand and silt taken from the intertidal regions of nearby beaches are indicative of high burn-up material from liquid discharges to sea. © 1990.
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页数:12
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