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AbstractAbstract
[en] This paper is sequential to studies discussing with the impact of the Doppler broadening of the Double Differential Cross Section (DDXS) on nuclear reactor core calculations. In this study, the influence of the resonance dependent DDXS on the observed resonance line shape in time of flight capture experiments is investigated. The importance of the correct formalism is illustrated by comparing Monte Carlo simulations with and without a resonance dependent DDXS model to measured data of a saturated "2"3"8U resonance. The resonance dependent DDXS is taken into account via its stochastic implementation known as Doppler Broadening Rejection Correction (DBRC). In addition, the increased impact of the resonance dependent DDXS model for higher temperatures is shown via a simulation of capture yields for "2"3"8U and "1"8"3W at different sample temperatures. (authors)
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Source
Available from doi: http://dx.doi.org/10.1016/j.nds.2014.04.031; 23 refs.; Country of input: France
Record Type
Journal Article
Journal
Nuclear Data Sheets; ISSN 0090-3752;
; v. 118; p. 179-183

Country of publication
ACTINIDE NUCLEI, ALPHA DECAY RADIOISOTOPES, CALCULATION METHODS, CROSS SECTIONS, EVEN-EVEN NUCLEI, EVEN-ODD NUCLEI, HEAVY NUCLEI, ISOMERIC TRANSITION ISOTOPES, ISOTOPES, LINE BROADENING, NUCLEI, RADIOISOTOPES, REACTOR COMPONENTS, SECONDS LIVING RADIOISOTOPES, SIMULATION, SPONTANEOUS FISSION RADIOISOTOPES, STABLE ISOTOPES, TUNGSTEN ISOTOPES, URANIUM ISOTOPES, YEARS LIVING RADIOISOTOPES
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