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KMID : 0371819970290050399
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Nuclear Engineering and Technology
1997 Volume.29 No. 5 p.399 ~ p.405
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Phase Separation Algorithm for Ex-core Neutron Signal Analysis
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Jung Seung-Ho
Kim Tae-Ryong
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Abstract
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In this study a new phase separated spectral analysis algorithm is proposed to identify CSB vibration mode directly from ex-core neutron signals. Ex-core neutron signals can be decomposed into the global, core support barrel (CSB) beam mode, and CSB shell mode components by the new phase separation algorithm based on the characteristics of Fourier transform.
By using the proposed algorithm and the conventional spectral analysis the vibration mode of the CSB and the fuel assembly of Ulchin-1 NPP were identified from measured ex-core neutron signals.
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KEYWORD
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