Title: On the search for a (n,f) cross-section reference at intermediate energies
Authors: DURAN I.VENTURA A.LO MEO S.TARRIO D.TASSAN-GOT L.PARADELA DOBARRO CARLOS
Citation: EPJ Web of Conferences vol. 146 p. 02032
Publisher: EDP Sciences
Publication Year: 2017
JRC N°: JRC108601
ISSN: 2100 014X
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC108601
DOI: 10.1051/epjconf/201714602032
Type: Articles in periodicals and books
Abstract: The (n,f) cross-sections proposed as references by the IAEA for 235U, 238U and 209Bi are compared with a new analysis that combines the measurements performed at CERN-n TOF of their cross-section ratios with new calculations done using Monte Carlo codes based on phenomenological models INCL++, GEMINI++, and ABLA07. The calculations are cross-checked with those for the (p,f) reactions, where experimental values are available. We have evaluated in this way the (n,f) cross sections for 238U, 235U and 209Bi, in the intermediate energy region going from 190MeV to 2 GeV. Our results definitively discard the JENDL/HE-2007 evaluations above 300MeV, falling inside the confidence corridor proposed by IAEA but for the points around 300–400MeV where a discrepancy is to be noticed.
JRC Directorate:Nuclear Safety and Security

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