Title: Measurement and analysis of the 241Am neutron capture cross section at the n_TOF facility at CERN
Authors: MENDOZA E.CANO-OTT D.ALTSTADT S.ANDRIAMONJE S.ANDRZEJEWSKI J.AUDOUIN L.BALIBREA J.BECARES V.BARBAGALLO M.BECVÁR F.BELLONI F.BERTHIER B.BERTHOUMIEUX E.BILLOWES J.BOSNAR D.BRUGGER M.CALVIÑO F.CALVIANI M.CARRAPIÇO C.CERUTTI F.CHIAVERI E.CHIN M.COLONNA N.CORTES G.CORTES-GIRALDO M. A.DIAKAKI M.DILLMANN IDOMINGO-PARDO C.DURAN I.DZYSIUK N.ELEFTHERIADIS C.FERRARI A.FRAVAL K.FURMAN W.GOMEZ-HORNILLOS M. B.GANESAN S.GARCIA A. R.GIUBRONE G.GONCALVES I.GONZALEZ-ROMERO E.GOVERDOVSKI A.GRAMEGNA F.GRIESMAYER E.GUERRERO C.GUNSING F.GURUSAMY P.HEFTRICH T.HEINITZ S.HERNANDEZ-PRIETO A.HEYSE JANJENKINS D. G.JERICHA E.KADI Y.KAEPPELER F.KARADIMOS D.KATABUCHI T.KETLEROV V.KHRYACHKOV VITALIKOEHLER P.KOKKORIS M.KROLL J.KRTICKA M.LAMPOUDIS C.LANGER C.LEAL-CIDONCHA E.LEDERER C.LEEB H.LEONG L. S.LERENDEGUI-MARCO J.LICATA M.LOPEZ D.LOSITO R.MANOUSOS AMARGANIEC J.MARTÍNEZ T.MASSIMI C.MASTINU P.MASTROMARCO M.MENGONI A.MILAZZO P. M.MINGRONE F.MIREA M.MONDELAERS WILLYPARADELA C.PAVLIK ANDREASPERKOWSKI J.PLOMPEN ARJANPRAENA J.QUESADA J.RAUSCHER T.REIFARTH R.RIEGO A.ROBLES M. S.ROMAN F.RUBBIA C.RYAN J.SABATE-GILARTE MSARMENTO R.SAXENA A.SCHILLEBEECKX PETERSCHMIDT S.SCHUMANN D.SEDYSHEV P.TAGLIENTE G.TAIN J. L.TARIFENO-SALDIVIA A.TARRIO D.TASSAN-GOT L.TSINGANIS A.VALENTA S.VANNINI G.VARIALE V.VAZ P.VENTURA A.VERMEULEN M.VERSACI R.VLACHOUDIS V.VLASTOU R.WALLNER A.WARE T.WEIGAND M.WEISS C.WRIGHT T. J.ZUGEC P.
Citation: PHYSICAL REVIEW C vol. 97 p. 054616
Publisher: AMER PHYSICAL SOC
Publication Year: 2018
JRC N°: JRC109177
ISSN: 2469-9985
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC109177
DOI: 10.1103/PhysRevC.97.054616
Type: Articles in periodicals and books
Abstract: The 241Am(n,γ) cross section has been measured at the n_TOF facility at CERN with the n_TOF BaF2 Total Absorption Calorimeter in the energy range between 0.2 eV and 10 keV. Our results are analyzed as resolved resonances up to 700 eV, allowing a more detailed description of the cross section than in the current evaluations, which contain resolved resonances only up to 150–160 eV. The cross section in the unresolved resonance region is perfectly consistent with the predictions based on the average resonance parameters deduced from the resolved resonances, thus obtaining a consistent description of the cross section in the full neutron energy range under study. Below 20 eV, our results are in reasonable agreement with JEFF-3.2 as well as with the most recent direct measurements of the resonance integral, and differ up to 20–30% with other experimental data. Between 20 eV and 1 keV, the disagreement with other experimental data and evaluations gradually decreases, in general, with the neutron energy. Above 1 keV, we find compatible results with previously existing values.
JRC Directorate:Nuclear Safety and Security

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