Covariances of resonance self-shielding factor and its temperature gradient for uncertainty evaluation of Doppler reactivity

Zukeran, Atsushi*; Chiba, Go; Otsuka, Naohiko*; Ishikawa, Makoto; Takano, Hideki*

Uncertainty of Doppler reactivity is theoretically formulated and then uncertainties of self-shielding factor and its temperature gradient due to errors of resonance parameters were evaluated from NJOY output. Sensitivity analysis was made for $^{235}$ U, $^{238}$ U, $^{239}$ Pu and $^{240}$ Pu of JENDL-3.3 based on JFS-3 70 group structure. Resultant sensitivity coefficients are provided for the uncertainty evaluation of Doppler reactivity.

Language	:	English
Report No.	:	JAEA-Research 2008-091
Pages	:	162 Pages
Publication Year/Month	:	2009/02
Patent information	:
PDF	:	JAEA-Research-2008-091-01.pdf:5.8MB JAEA-Research-2008-091-02.pdf:45.78MB
Paper URL	:	https://doi.org/10.11484/jaea-research-2008-091
Keywords	:	no keyword
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Registration No. : RS20080091
JAEA Abstracts No. : 37000250

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