A fast-neutron coincidence collar using liquid scintillators for fresh fuel verification

被引：0
|
作者：
Jonathan S. Beaumont
Tae Hoon Lee
Mikhail Mayorov
Carlo Tintori
Francesco Rogo
Bruno Angelucci
Matteo Corbo
机构：
[1] International Atomic Energy Agency,
[2] CAEN S.p.A,undefined
来源：
Journal of Radioanalytical and Nuclear Chemistry | 2017年 / 314卷
关键词：
Safeguards; Non-destructive assay; Uranium assay; Neutron coincidence counting; Fast-neutron detection; Burnable neutron poisons;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The IAEA has developed a liquid scintillator-based system for the non-destructive assay of 235U in fresh fuel assemblies. The fast neutron coincidence collar (FNCL) addresses current limitations in existing neutron coincidence counting techniques when measuring fuel containing burnable neutron poisons. Detection of fast neutrons rather than thermal neutrons allows the minimisation of measurement time and biases (due to effects of burnable poisons). The FNCL hardware, software and instrument optimisation are discussed. Experimental results from measurements of mock-up uranium fuel assemblies at the institute for transuranium elements, Karlsruhe, Germany with varying 235U enrichment and burnable neutron poison content are presented.
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收藏
页码：803 / 812
页数：9
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