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首页> 美国政府科技报告 >Confirming criticality safety of TRU waste with neutron measurements and risk analyses
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Confirming criticality safety of TRU waste with neutron measurements and risk analyses

机译：通过中子测量和风险分析确认TRU废物的临界安全性

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The criticality safety of (sup 239)Pu in 55-gallon drums stored in TRU waste containers (culverts) is confirmed using NDA neutron measurements and risk analyses. The neutron measurements yield a (sup 239)Pu mass and k(sub eff) for a culvert, which contains up to 14 drums. Conservative probabilistic risk analyses were developed for both drums and culverts. Overall (sup 239)Pu mass estimates are less than a calculated safety limit of 2800 g per culvert. The largest measured k(sub eff) is 0.904. The largest probability for a critical drum is 6.9 (times) 10(sup (minus)8) and that for a culvert is 1.72 (times) 10(sup (minus)7). All examined suspect culverts, totaling 118 in number, are appraised as safe based on these observations.

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