Evaluation of neutron nuclear data of Praseodymium-141 and -143

Minato, Futoshi

For the next version of JENDL general purpose file, neutron nuclear data on $^{141,143}$ Pr are evaluated considering cross sections and spectra provided from experiments in the fast neutron energy region up to 20 MeV. Total cross section is derived from optical model. Pre-equilibrium and direct-reaction processes are taken into account in addition to the compound process. The statistical model is applied to calculate the cross sections above the resolved resonance region. For unstable $^{143}$ Pr nuclide having less experimental data, we use the same optical potential as $^{141}$ Pr. The resolved resonance parameter remains unchanged from JENDL-4.0. The present evaluations are consistent with experimental data, reflecting new measured one. The evaluated data are compiled into an ENDF-formatted data file for the next version of JENDL.

Language	:	English
Journal	:	Journal of Nuclear Science and Technology
Volume	:	50
Number	:	9
Pages	:	p.873 - 882
Publication Year/Month	:	2013/09
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Paper URL	:	https://doi.org/10.1080/00223131.2013.810125
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Keywords	:	no keyword
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Registration No. : AA20121049
JAEA Abstracts No. : 41001092
Paper Submission No. : 13091

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