科技报告详细信息
A dual neutron/gamma source for the Fissmat Inspection for Nuclear Detection (FIND) system. | |
Doyle, Barney Lee (Sandia National Laboratories, Albuquerque, NM) ; King, Michael ; Rossi, Paolo (Sandia National Laboratories, Albuquerque, NM) ; McDaniel, Floyd Del (Sandia National Laboratories, Albuquerque, NM) ; Morse, Daniel Henry ; Antolak, Arlyn J. ; Pr | |
关键词: DETECTION; FISSION; HIGHLY ENRICHED URANIUM; NEUTRONS; NUCLEAR REACTIONS; PERFORMANCE; PHOTONS; SHIELDING; TESTING Nuclear materials-Analysis.; Nuclear materials-Security measures.; Nuclear materials-Identification.; Special Nuclear materials (SNM); | |
DOI : 10.2172/946576 RP-ID : SAND2008-7934 PID : OSTI ID: 946576 Others : TRN: US0901160 |
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美国|英语 | |
来源: SciTech Connect | |
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【 摘 要 】
Shielded special nuclear material (SNM) is very difficult to detect and new technologies are needed to clear alarms and verify the presence of SNM. High-energy photons and neutrons can be used to actively interrogate for heavily shielded SNM, such as highly enriched uranium (HEU), since neutrons can penetrate gamma-ray shielding and gamma-rays can penetrate neutron shielding. Both source particles then induce unique detectable signals from fission. In this LDRD, we explored a new type of interrogation source that uses low-energy proton- or deuteron-induced nuclear reactions to generate high fluxes of mono-energetic gammas or neutrons. Accelerator-based experiments, computational studies, and prototype source tests were performed to obtain a better understanding of (1) the flux requirements, (2) fission-induced signals, background, and interferences, and (3) operational performance of the source. The results of this research led to the development and testing of an axial-type gamma tube source and the design/construction of a high power coaxial-type gamma generator based on the {sup 11}B(p,{gamma}){sup 12}C nuclear reaction.【 预 览 】
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