科技报告详细信息
Assessment of Non-traditional Isotopic Ratios by Mass Spectrometry for Analysis of Nuclear Activities: Annual Report Year 2 | |
Biegalski, S ; Buchholz, B | |
关键词: EXPLOSIONS; FISSION PRODUCTS; FUEL CYCLE; INVENTORIES; ISOTOPE PRODUCTION; MASS SPECTROSCOPY; NUCLEAR FUELS; NUCLEAR WEAPONS; PLUTONIUM; RADIOISOTOPES; REACTORS; WEAPONS; | |
DOI : 10.2172/965065 RP-ID : LLNL-TR-416306 PID : OSTI ID: 965065 Others : TRN: US0903812 |
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学科分类:核能源与工程 | |
美国|英语 | |
来源: SciTech Connect | |
【 摘 要 】
The objective of this work is to identify isotopic ratios suitable for analysis via mass spectrometry that distinguish between commercial nuclear reactor fuel cycles, fuel cycles for weapons grade plutonium, and products from nuclear weapons explosions. Methods will also be determined to distinguish the above from medical and industrial radionuclide sources. Mass spectrometry systems will be identified that are suitable for field measurement of such isotopes in an expedient manner. Significant progress has been made with this project within the past year: (1) Isotope production from commercial nuclear fuel cycles and nuclear weapons fuel cycles have been modeled with the ORIGEN and MCNPX codes. (2) MCNPX has been utilized to calculate isotopic inventories produced in a short burst fast bare sphere reactor (to approximate the signature of a nuclear weapon). (3) Isotopic ratios have been identified that are good for distinguishing between commercial and military fuel cycles as well as between nuclear weapons and commercial nuclear fuel cycles. (4) Mass spectrometry systems have been assessed for analysis of the fission products of interest. (5) A short-list of forensic ratios have been identified that are well suited for use in portable mass spectrometry systems.【 预 览 】
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