Feynman-α Analysis for a Thermal Subcritical Reactor System Driven by an Unstable 14 MeV Neutron Source
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概要
- 論文の詳細を見る
In a series of Feynman-α correlation measurements for a thermal Accelerator-Driven System (ADS) with 14 MeV neutrons at the Kyoto University Critical Assembly (KUCA), an unstable accelerator condition such as a drift of beam current has been frequently observed. Neutron source instability caused by such unavoidable beam-current instability resulted in a divergent variance-to-mean ratio and, consequently, the correlation analysis failed. Nevertheless, we attempted to apply a difference-filtering technique to the correlation analysis to reduce the influence of the above instability. The present attempt resulted in consistent prompt-neutron decay constants with those obtained in a previous pulsed neutron experiment. The application of the filtering is expected to enhance the robustness of Feynman-α analysis against various instabilities of accelerator operation in actual ADS.
- 一般社団法人 日本原子力学会の論文
著者
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Pyeon Cheol
Nuclear Engineering Sci. Div. Res. Reactor Inst. Kyoto Univ.
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Ohsawa Takaaki
Interdisciplinary Graduate School Of Science And Engineering Kinki University
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HASHIMOTO Kengo
Interdisciplinary Graduate School of Science and Engineering, Kinki University
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Misawa Tsuyoshi
Nuclear Engineering Science Division Research Reactor Institute Kyoto University
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Sano Tadafumi
Nuclear Engineering Sci. Div. Res. Reactor Inst. Kyoto Univ.
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Taninaka Hiroshi
Interdisciplinary Graduate School Of Science And Engineering Kinki University
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Sugiyama Wataru
Interdisciplinary Graduate School Of Science And Engineering Kinki University
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MIYOSHI Atsuko
Interdisciplinary Graduate School of Science and Engineering, Kinki University
関連論文
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