Neutron capture cross section of 232Th measured at the n_TOF facility at CERN in the unresolved resonance region up to 1 MeV

G. Aerts (1) , U. Abbondanno , H. Álvarez , F. Alvarez-Velarde , S. Andriamonje (1) , J. Andrzejewski , P. Assimakopoulos , L. Audouin , G. Badurek , P. Baumann (2) , F. Be Vá , E. Berthoumieux (1) , F. Calviño , D. Cano-Ott , R. Capote , A. Carrillo de Albornoz , P. Cennini , V. Chepel , E. Chiaveri , N. Colonna , G. Cortes , A. Couture , J. Cox , M. Dahlfors , S. David , I. Dillman , R. Dolfini , C. Domingo-Pardo , W. Dridi (1) , I. Duran , C. Eleftheriadis , M. Embid-Segura , L. Ferrant (3) , Anthony Ferrari , R. Ferreira-Marques , L. Fitzpatrick , H. Frais-Koelbl , K. Fujii , W. Furman , I. Goncalves , E. Gonzalez-Romero , A. Goverdovski , F. Gramegna , E. Griesmayer , C. Guerrero , F. Gunsing (1) , B. Haas (4) , R. Haight , M. Heil , A. Herrera-Martinez , M. Igashira , S. Isaev (3) , E. Jericha , F. Käppeler , Y. Kadi , D. Karadimos , D. Karamanis , M. Kerveno (2) , V. Ketlerov , P. Koehler , V. Konovalov , E. Kossionides , M. Krti Ka , C. Lamboudis , H. Leeb , A. Lindote , I. Lopes , M. Lozano , S. Lukic (2) , J. Marganiec , L. Marques , S. Marrone , P. Mastinu , A. Mengoni , P.M. Milazzo , C. Moreau , M. Mosconi , F. Neves , H. Oberhummer , S. O'Brien , M. Oshima , J. Pancin (1) , C. Papachristodoulou , C. Papadopoulos , C. Paradela , N. Patronis , A. Pavlik , P. Pavlopoulos , L. Perrot (1) , M.T. Pigni , R. Plag , A. Plompen , A. Plukis (1) , A. Poch , C. Pretel , J. Quesada , T. Rauscher , R. Reifarth , M. Rosetti , C. Rubbia , G. Rudolf (2) , P. Rullhusen , J. Salgado , L. Sarchiapone , I. Savvidis , C. Stephan (3) , G. Taliente , J.L. Tain , L. Tassan-Got (3) , L. Tavora , R. Terlizzi , G. Vannini , P. Vaz , A. Ventura , D. Villamarin , M.C. Vincente , V. Vlachoudis , R. Vlastou , F. Voss , S. Walter , H. Wendler , M. Wiescher , K. Wisshak

1 DAPNIA - Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée
2 DRS-IPHC - Département Recherches Subatomiques
3 IPNO - Institut de Physique Nucléaire d'Orsay
4 CENBG - Centre d'Etudes Nucléaires de Bordeaux Gradignan

We have measured the neutron capture reaction yield of 232Th$ at the neutron time-of-flight facility n_TOF at CERN in the energy range from 1 eV to 1 MeV. The average capture cross section has been extracted in the energy range from 4 keV up to 1 MeV with an overall accuracy better than 4%. An independent IAEA evaluation shows good agreement with the data. The average cross section has been expressed in terms of average resonance parameters using the partial waves \ell =0,1, and 2.

Domaines: Physique Nucléaire Expérimentale [nucl-ex]

G. Aerts, U. Abbondanno, H. Álvarez, F. Alvarez-Velarde, S. Andriamonje, et al.. Neutron capture cross section of 232Th measured at the n_TOF facility at CERN in the unresolved resonance region up to 1 MeV. Physical Review C, 2006, 73, pp.054610. ⟨10.1103/PhysRevC.73.054610⟩. ⟨in2p3-00082118⟩