Study on the relation between Doppler reactivity coefficient and resonance integrals of Thorium and Uranium in PWR fuels
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- 作者：Noboru Dobuchi
- 关键词：Thorium fuel ; Uranium fuel ; Doppler reactivity coefficient ; Resonance integral ; Resonance width
- 刊名：Annals of Nuclear Energy
- 出版年：2016
- 出版时间：April 2016
- 年：2016
- 卷：90
- 期：Complete
- 页码：191-194
- 全文大小：677 K
文摘
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We used sensitivity coefficient to decompose Doppler reactivity coefficient.
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Relative change of capture cross-section of Th-232 is larger than that of U-238.
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Narrower resonance is more sensitive to Doppler Effect than wider one.
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Resonance width has a large impact on Doppler reactivity coefficient.