EPJ Web of Conferences (Jan 2016)

Towards the high-accuracy determination of the 238U fission cross section at the threshold region at CERN – n_TOF

  • Diakaki M.,
  • Audouin L.,
  • Berthoumieux E.,
  • Calviani M.,
  • Colonna N.,
  • Dupont E.,
  • Duran I.,
  • Gunsing F.,
  • Leal-Cidoncha E.,
  • Le Naour C.,
  • Leong L.S.,
  • Mastromarco M.,
  • Paradela C.,
  • Tarrio D.,
  • Tassan-Got L.,
  • Aerts G.,
  • Altstadt S.,
  • Alvarez H.,
  • Alvarez-Velarde F.,
  • Andriamonje S.,
  • Andrzejewski J.,
  • Badurek G.,
  • Barbagallo M.,
  • Baumann P.,
  • Becares V.,
  • Becvar F.,
  • Belloni F.,
  • Berthier B.,
  • Billowes J.,
  • Boccone V.,
  • Bosnar D.,
  • Brugger M.,
  • Calvino F.,
  • Cano-Ott D.,
  • Capote R.,
  • Carrapiço C.,
  • Cennini P.,
  • Cerutti F.,
  • Chiaveri E.,
  • Chin M.,
  • Cortes G.,
  • Cortes-Giraldo M.A.,
  • Cosentino L.,
  • Couture A.,
  • Cox J.,
  • David S.,
  • Dillmann I.,
  • Domingo-Pardo C.,
  • Dressler R.,
  • Dridi W.,
  • Eleftheriadis C.,
  • Embid-Segura M.,
  • Ferrant L.,
  • Ferrari A.,
  • Finocchiaro P.,
  • Fraval K.,
  • Fujii K.,
  • Furman W.,
  • Ganesan S.,
  • Garcia A.R.,
  • Giubrone G.,
  • Gomez-Hornillos M.B.,
  • Goncalves I.F.,
  • Gonzalez-Romero E.,
  • Goverdovski A.,
  • Gramegna F.,
  • Griesmayer E.,
  • Guerrero C.,
  • Gurusamy P.,
  • Haight R.,
  • Heil M.,
  • Heinitz S.,
  • Igashira M.,
  • Isaev S.,
  • Jenkins D.G.,
  • Jericha E.,
  • Kadi Y.,
  • Kaeppeler F.,
  • Karadimos D.,
  • Karamanis D.,
  • Kerveno M.,
  • Ketlerov V.,
  • Kivel N.,
  • Kokkoris M.,
  • Konovalov V.,
  • Krticka M.,
  • Kroll J.,
  • Lampoudis C.,
  • Langer C.,
  • Lederer C.,
  • Leeb H.,
  • Lo Meo S.,
  • Losito R.,
  • Lozano M.,
  • Manousos A.,
  • Marganiec J.,
  • Martinez T.,
  • Marrone S.,
  • Massimi C.,
  • Mastinu P.,
  • Mendoza E.,
  • Mengoni A.,
  • Milazzo P.M.,
  • Mingrone F.,
  • Mirea M.,
  • Mondelaers W.,
  • Moreau C.,
  • Mosconi M.,
  • Musumarra A.,
  • O’Brien S.,
  • Pancin J.,
  • Patronis N.,
  • Pavlik A.,
  • Pavlopoulos P.,
  • Perkowski J.,
  • Perrot L.,
  • Pigni M.T.,
  • Plag R.,
  • Plompen A.,
  • Plukis L.,
  • Poch A.,
  • Pretel C.,
  • Praena J.,
  • Quesada J.,
  • Rauscher T.,
  • Reifarth R.,
  • Riego A.,
  • Roman F.,
  • Rudolf G.,
  • Rubbia C.,
  • Rullhusen P.,
  • Salgado J.,
  • Santos C.,
  • Sarchiapone L.,
  • Sarmento R.,
  • Saxena A.,
  • Schillebeeckx P.,
  • Schmidt S.,
  • Schumann D.,
  • Stephan C.,
  • Tagliente G.,
  • Tain J.L.,
  • Tavora L.,
  • Terlizzi R.,
  • Tsinganis A.,
  • Valenta S.,
  • Vannini G.,
  • Variale V.,
  • Vaz P.,
  • Ventura A.,
  • Versaci R.,
  • Vermeulen M.J.,
  • Villamarin D.,
  • Vincente M.C.,
  • Vlachoudis V.,
  • Vlastou R.,
  • Voss F.,
  • Wallner A.,
  • Walter S.,
  • Ware T.,
  • Weigand M.,
  • Weiß C.,
  • Wiesher M.,
  • Wisshak K.,
  • Wright T.,
  • Zugec P.

DOI
https://doi.org/10.1051/epjconf/201611102002
Journal volume & issue
Vol. 111
p. 02002

Abstract

Read online

The 238U fission cross section is an international standard beyond 2 MeV where the fission plateau starts. However, due to its importance in fission reactors, this cross-section should be very accurately known also in the threshold region below 2 MeV. The 238U fission cross section has been measured relative to the 235U fission cross section at CERN – n_TOF with different detection systems. These datasets have been collected and suitably combined to increase the counting statistics in the threshold region from about 300 keV up to 3 MeV. The results are compared with other experimental data, evaluated libraries, and the IAEA standards.