Fractionation of UF6 and daughter progeny in storage cylinders from external heating

被引：0
|
作者：
Wilson, Brandon A. [1 ]
Peplow, Douglas E. [1 ]
Bledsoe, Keith C. [1 ]
See, Nathan D. [1 ]
Rose Jr, Paul B. [1 ]
Fugate, Glenn A. [2 ]
机构：
[1] Oak Ridge Natl Lab, 1 Bethel Valley Rd, Oak Ridge, TN 37830 USA
[2] Pacific Northwest Natl Lab, 902 Battelle Blvd, Richland, WA 99354 USA
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2025年 / 334卷 / 01期
关键词：
Uranium hexafluoride; Nuclear safeguards; Gamma spectroscopy;
D O I：
10.1007/s10967-024-09743-9
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Uranium hexafluoride (UF6) is a significant concern for material accountancy and verification in the international safeguards community. Verification of the contents of UF6 cylinders is generally attempted with gamma spectroscopy but the current methods assume a uniform, homogeneous UF6 mass distribution within the cylinder. In this work, it was found experimentally and confirmed via modeling, that under an external heat load (the sun), the UF6 and its daughter products undergo fractionation in the cylinder. This fractionation of the UF6 and daughter products can cause an errant measurement of the enrichment of the cylinder when using the current verification methods.
引用
收藏
页码：193 / 201
页数：9
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