A fast-neutron coincidence collar using liquid scintillators for fresh fuel verification
| Autor: | Mikhail Mayorov, Tae Hoon Lee, Jonathan S. Beaumont, Carlo Tintori, Francesco Rogo, Bruno Angelucci, M. Corbo |
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| Rok vydání: | 2017 |
| Předmět: |
010308 nuclear & particles physics
Health Toxicology and Mutagenesis Nuclear engineering Radiochemistry Public Health Environmental and Occupational Health Neutron poison chemistry.chemical_element Scintillator Uranium 01 natural sciences Pollution Neutron temperature 030218 nuclear medicine & medical imaging Analytical Chemistry 03 medical and health sciences 0302 clinical medicine Nuclear Energy and Engineering chemistry 0103 physical sciences Neutron detection Radiology Nuclear Medicine and imaging Neutron Coincidence counting Spectroscopy Transuranium element |
| Zdroj: | Journal of Radioanalytical and Nuclear Chemistry. 314:803-812 |
| ISSN: | 1588-2780 0236-5731 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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