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Title: The (n, α) Reaction in the s-process Branching Point {sup 59}Ni

The (n, α) reaction in the radioactive {sup 59}Ni is of relevance in nuclear astrophysics as {sup 59}Ni can be considered as the first branching point in the astrophysical s-process. Its relevance in nuclear technology is especially related to material embrittlement in stainless steel. However, there is a discrepancy between available experimental data and the evaluated nuclear data files for this reaction. At the n{sub T}OF facility at CERN, a dedicated system based on sCVD diamond diodes was set up to measure the {sup 59}Ni(n, α){sup 56}Fe cross section. The results of this measurement, with special emphasis on the dominant resonance at 203 eV, are presented here.
Authors:
 [1] ;  [2] ;  [3] ;  [1] ;  [4] ;  [1] ;  [5] ;  [2] ;  [6] ;  [7] ;  [1] ;  [8] ;  [9] ;  [10] ;  [11] ;  [1] ;  [4] ;  [12] ;  [4] ;  [13] more »; « less
  1. Atominstitut, Technische Universität Wien (Austria)
  2. (CERN), Geneva (Switzerland)
  3. European Organization for Nuclear Research (CERN), Geneva (Switzerland)
  4. Uniwersytet Łódzki, Lodz (Poland)
  5. Commissariat à l'Énergie Atomique (CEA) Saclay – Irfu, Gif-sur-Yvette (France)
  6. Paul Scherrer Institut, Villigen PSI (Switzerland)
  7. Bhabha Atomic Research Centre (BARC), Mumbai (India)
  8. Karlsruhe Institute of Technology, Campus Nord, Institut für Kernphysik, Karlsruhe (Germany)
  9. University of Oslo, Department of Physics, N-0316 Oslo (Norway)
  10. Johann-Wolfgang-Goethe Universität, Frankfurt (Germany)
  11. (Austria)
  12. University of Vienna, Faculty of Physics (Austria)
  13. Department of Physics and Astronomy – University of Basel, Basel (Switzerland)
Publication Date:
OSTI Identifier:
22436725
Resource Type:
Journal Article
Resource Relation:
Journal Name: Nuclear Data Sheets; Journal Volume: 120; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ALPHA PARTICLES; ASTROPHYSICS; CERN; EV RANGE 100-1000; INTEGRAL CROSS SECTIONS; IRON 56; NEUTRON REACTIONS; NICKEL 59; NUCLEAR DATA COLLECTIONS; S PROCESS; STAINLESS STEELS; TIME-OF-FLIGHT METHOD; TIME-OF-FLIGHT SPECTROMETERS