Au-197(n,gamma) cross section in the resonance region

C. Massimi, C. Domingo-Pardo, G. Vannini, L. Audouin, C. Guerrero, U. Abbondanno, G. Aerts, H. Alvarez, F. Alvarez-Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulos, G. Badurek, P. Baumann, F. Becvar, F. Belloni, E. Berthoumieux, F. Calvino, M. Calviani, D. Cano-OttR. Capote, C. Carrapico, P. Cennini, V. Chepel, E. Chiaveri, N. Colonna, G. Cortes, A. Couture, J. Cox, M. Dahlfors, S. David, I. Dillmann, W. Dridi, I. Duran, C. Eleftheriadis, L. Ferrant, A. Ferrari, R. Ferreira-Marques, K. Fujii, W. Furman, S. Galanopoulos, I. F. Goncalves, E. Gonzalez-Romero, F. Gramegna, F. Gunsing, B. Haas, R. Haight, M. Heil, A. Herrera-Martinez, T. Rauscher, N TOF Collaboration

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46 Citations (Scopus)

Abstract

The (n,gamma) cross section of Au-197 has been measured at n_TOF in the resolved resonance region, up to 5 keV, with the aim of improving the accuracy in an energy range where it is not yet considered standard. The measurements were performed with two different experimental setup and detection techniques, the total energy method based on C6D6 detectors, and the total absorption calorimetry based on a 4 pi BaF2 array. By comparing the data collected with the two techniques, two accurate sets of neutron-capture yields have been obtained, which could be the basis for a new evaluation leading to an extended cross-section standard. Overall good agreement is found between the n_TOF results and evaluated cross sections, with some significant exceptions for small resonances. A few resonances not included in the existing databases have also been observed

Original languageEnglish
Article number044616
Number of pages22
JournalPhysical Review C (nuclear physics)
Volume81
Issue number4
DOIs
Publication statusPublished - Apr 2010

Keywords

  • STANDARDS
  • DETECTOR
  • CAPTURE
  • SPECTRA
  • OF-FLIGHT FACILITY
  • SPALLATION NEUTRON SOURCE
  • N-TOF
  • ELEMENTS
  • TOTAL ABSORPTION CALORIMETER
  • CERN

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