2016 Fiscal Year Final Research Report
Development of delayed neutron analysis method using pulsed neutron for detection of illicit nuclear material amount
| Project/Area Number |
25420906
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Nuclear engineering
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| Research Institution | Kyoto University |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2017-03-31
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| Keywords | 核物質 / 中性子 / ガンマ線 / 核セキュリティー / 雑音解析 |
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| Outline of Final Research Achievements |
Delayed neutron noise analysis combined with pulsed neutron source was newly proposed and experiments and analysis were carried out for development of illicit nuclear material amount detection system. Since a research reactor in Kyoto University could not operate during this research period because of inspection by Nuclear Regulation Authority, neutron noise and gamma-ray noise analysis experiments based on variance to mean ratio method were carried out using subcritical system with natural uranium and Cf neutron source. Through those experiments, variation of nuclear material amount could be detected by neutron noise analysis, and moreover, combination of neutron and gamma-ray noise analysis was effective for increase detection efficiency for illicit hidden neutron material. Another experimental method by detection of neutron energy was also examined and it was found that this new method could be adopted for illicit nuclear material detection.
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| Free Research Field |
原子力工学
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