Measurement of the neutron capture cross section of the fissile isotope 235U with the CERN n_TOF total absorption calorimeter and a fission tagging based on micromegas detectors

Current and future nuclear technologies require more accurate nuclear data on (n,γ) cross sections and the α-ratios of fissile isotopes. Their measurement presents several difficulties, mainly related to the strong fission γ-ray background competing with the weaker γ-ray cascades used as the experimental signature of the (n,γ) process. A specific setup was used at the CERN n TOF facility in 2012 for the measurement of the (n,γ) cross section and α-ratios of fissile isotopes and used for the case of the 235U isotope. The setup consists of a set of micromegas fission detectors surrounding the 235U samples all placed inside a segmented BaF2 Total Absorption Calorimeter.

BALIBREA J.;  MENDOZA E.;  CANO-OTT D.;  GUERRERO C.;  BERTHOUMIEUX E.;  ALTSTADT S.;  ANDRZEJEWSKI J.;  AUDOUIN L.;  BARBAGALLO M.;  BECARES V.;  BECVÁR F.;  BELLONI F.;  BILLOWES J.;  BOCCONE V.;  BOSNAR D.;  CALVIANI M.;  BRUGGER M.;  CALVIÑO F.;  CARRAPIÇO C.;  CERUTTI F.;  CHIAVERI E.;  CHIN M.;  CORTES G.;  CORTES-GIRALDO M. A.;  COLONNA N.;  DIAKAKI M.;  DOMINGO-PARDO C.;  DZYSIUK N.;  ELEFTHERIADIS C.;  DURAN I.;  FERRARI A.;  FRAVAL K.;  GANESAN S.;  GARCIA A. R.;  GIUBRONE G.;  GOMEZ-HORNILLOS M. B.;  GONZALEZ-ROMERO E.;  GONÇALVES I.;  GRIESMAYER E.;  GUNSING F.;  GURUSAMY P.;  JENKINS D. G.;  JERICHA E.;  KADI Y.;  KARADIMOS D.;  KÄPPELER F.;  KOEHLER P.;  KOKKORIS M.;  KROLL J.;  KRTICKA M.;  LANGER C.;  LEDERER C.;  LEEB H.;  LOSITO R.;  MANOUSOS A;  MARGANIEC J.;  MARTÍNEZ T.;  MASSIMI C.;  MASTINU P.;  MASTROMARCO M.;  MEAZE M.;  MENGONI A.;  MILAZZO P. M.;  MINGRONE F.;  MIREA M.;  MONDELAERS Willy;  PAVLIK Andreas;  PERKOWSKI J.;  PLOMPEN Arjan;  PRAENA J.;  QUESADA J.;  RAUSCHER T.;  REIFARTH R.;  RIEGO A.;  ROMAN F.;  RUBBIA C.;  SARMENTO R.;  SCHILLEBEECKX Peter;  SCHMIDT S.;  TAGLIENTE G.;  TAIN J. 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.;  DRESSLER R.;  KAWANO T.;  KIVEL Niko;  KORSCHINEK G.;  LAMPOUDIS C.;  PARADELA C.;  PIGNATARI M.;  SCHUMANN D.;  STETCU I.;  SABATE-GILARTE M;  TARRIO D.;  TASSAN-GOT L.;  LEONG L. S.; 

2015-01-20

ACADEMIC PRESS INC ELSEVIER SCIENCE

JRC92020

0090-3752,   

http://www.sciencedirect.com/science/article/pii/S0090375214005390,    http://dx.doi.org/10.1016/j.nds.2014.08.005,    https://publications.jrc.ec.europa.eu/repository/handle/JRC92020,   

10.1016/j.nds.2014.08.005,