The n_TOF Total Absorption Calorimeter for neutron capture measurements at CERN

C. Guerrero , U. Abbondanno , G. Aerts (1) , H. Alvarez , F. Alvarez-Velarde , S. Andriamonje (1) , J. Andrzejewski , P. Assimakopoulos , L. Audouin (2) , G. Badurek , P. Baumann (2) , F. Becvar , E. Berthoumieux (1) , F. Calvino , M. Calviani , D. Cano-Ott , R. Capote , C. Carrapiço (1) , P. Cennini (3) , V. Chepel , E. Chiaveri (3) , N. Colonna , G. Cortes , A. Couture , J. Cox , M. Dahlfors (3) , S. David (2) , I. Dillmann , C. Domingo-Pardo , W. Dridi (1) , I. Duran , C. Eleftheriadis , L. Ferrant (2) , Anthony Ferrari (3) , R. Ferreira-Marques , K. Fujii , W. Furman , I. Goncalves , E. Gonzalez-Romero , F. Gramegna , F. Gunsing (1) , B. Haas (2) , R. Haight , M. Heil , A. Herrera-Martinez (3) , M. Igashira , E. Jericha , F. Käppeler , Y. Kadi (3) , D. Karadimos , M. Kerveno (2) , P. Koehler , E. Kossionides , M. Krticka , C. Lampoudis (1) , H. Leeb , A. Lindote , I. Lopes , M. Lozano , S. Lukic (2) , J. Marganiec , S. Marrone , T. Martínez , C. Massimi , P. Mastinu , E. Mendoza , A. Mengoni (3) , P.M. Milazzo , C. Moreau , M. Mosconi , F. Neves , H. Oberhummer , S. O'Brien , J. Pancin (1) , C. Papachristodoulou , C. Papadopoulos , C. Parade , N. Patronis , A. Pavlik , P. Pavlopoulos (4) , L. Perrot (1) , M.T. Pigni , R. Plag , A. Plompen , A. Plukis (1) , A. Poch , J. Praena , C. Pretel , J. Quesada , T. Rauscher , R. Reifarth , C. Rubbia (3) , G. Rudolf (2) , P. Rullhusen , J. Salgado , C. Santos , L. Sarchiapone (3) , I. Savvidis , C. Stephan , G. Tagliente , J.L. Tain , L. Tassan-Got (2) , L. Tavora , R. Terlizzi , G. Vannini , P. Vaz , A. Ventura , D. Villamarin , M.C. Vicente , V. Vlachoudis (3) , R. Vlastou , F. Voss , S. Walter , 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 CERN - European Organization for Nuclear Research
4 PôLE UNIVERSITAIRE LéONARD DE VINCI - Pôle Universitaire Léonard de Vinci

The n_TOF Collaboration has built and commissioned a high-performance detector for (n,γ) measurements called the Total Absorption Calorimeter (TAC). The TAC was especially designed for measuring neutron capture cross-sections of low-mass and/or radioactive samples with the accuracy required for nuclear technology and stellar nucleosynthesis. We present a detailed description of the TAC and discuss its overall performance in terms of energy and time resolution, background discrimination, detection efficiency and neutron sensitivity.

Mots clés: n_TOF; Neutron capture; Neutron cross-sections; Total Absorption; Time-of-Flight; BaF2 detector

Domaines: Physique Nucléaire Expérimentale [nucl-ex]

C. Guerrero, U. Abbondanno, G. Aerts, H. Alvarez, F. Alvarez-Velarde, et al.. The n_TOF Total Absorption Calorimeter for neutron capture measurements at CERN. Nuclear Instruments and Methods in Physics Research, 2009, 608, pp.424-433. ⟨10.1016/j.nima.2009.07.025⟩. ⟨in2p3-00413445⟩