Neutron Capture Cross Section Of Th-232 Measured At The N_tof Facility At Cern In The Unresolved Resonance Region Up To 1 Mev

G. Aerts,U. Abbondanno,H. ´ Alvarez,F. Alvarez-Velarde,S. Andriamonje,J. Andrzejewski,C. Lamboudis,H. Leeb,A. Lindote,I. Lopes,M. Lozano,S. Lukic,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,C. Papachristodoulou,C. Papadopoulos,C. Paradela,N. Patronis,A. Pavlik,P. Pavlopoulos,L. Perrot,M. T. Pigni,R. Plag,A. Plompen,A. Plukis,A. Poch,C. Pretel,J. Quesada,T. Rauscher,R. Reifarth,M. Rosetti,C. Rubbia,G. Rudolf,P. Rullhusen,J. Salgado,L. Sarchiapone,I. Savvidis,C. Stephan,G. Tagliente,J. L. Tain,L. Tassan-Got,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, F. Voss,S. Walter,H. Wendler,M. Wiescher,K. Wisshak,S. Marrone,P. Mastinu,A. Mengoni,P. Milazzo,C. Moreau,M. Mosconi,F. Neves,H. Oberhummer,S. O'Brien,M. Oshima,J. Pancin,C. Papachristodoulou,C. Papadopoulos, C. Paradela,N. Patronis, A. Pavlik,P. Pavlopoulos,L. Perrot,M. Pigni,R. Plag,A. Plompen,A. Plukis,A. Poch,C. Pretel,J. Quesada,T. Rauscher,R. Reifarth, M. Rosetti,C. Rubbia, G. Rudolf,P. Rullhusen, J. Salgado, L. Sarchiapone,I. Savvidis,C. Stephan, G. Taliente,J. Tain,L. Tassan-Got,L. Tavora,R. Terlizzi,G. Vannini, P. Vaz,A. Ventura,D. Villamarin,M. Vincente, V. Vlachoudis,R. Vlastou, F. Voss,S. Walter,H. Wendler,M. Wiescher,K. Wisshak

PHYSICAL REVIEW C（2006）

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Abstract

We have measured the neutron capture reaction yield of Th-232 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 l=0,1, and 2.

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Key words

neutron,unresolved resonance region,cern

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