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Multilevel S-Matrix Analysis of 235U Neutron Cross Sections up to 93 eV Using the Collision Matrix Unitarity Method

  • V. V. Kolesov
  • A. A. Lukyanov
Conference paper
Part of the Research Reports in Physics book series (RESREPORTS)

Abstract

A new multilevel fit to 235U total and fission cross section data up to 93 eV has been obtained in S-matrix formalism. The collision matrix unitarity method has been used to construct elastic scattering and neutron capture resonance cross-sections from the total and fission resonance parameters. So, interference effects have been taken into account for all partial cross-sections. Resonance parameters have been written in ENDF/B format.

Group averaged cross-sections and neutron transmission have been calculated and compared with other evaluations and experimental results.

Keywords

Elastic Scattering Simplex Method Resonance Parameter Section Data Energy Integral 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. 1.
    F.T. Adler, D.B. Adler: in Proc. Conf. on Breeding, Econ. and Safety in Fast Reactors, ANL-6792, 695(1963).Google Scholar
  2. 2.
    A. A. Lukyanov, V. V. Kolesov et al.: In Proc. Int. Conf. on Nuclear Data for Basic and Applied Science (Gordon and Breach Publ.), v.2, 1691(1986).Google Scholar
  3. 3.
    A. Michaudon et al.: Nucl. Phys., 69, 545(1965).Google Scholar
  4. 4.
    M.S. Moor, J.D. Moses, G.A. Keyworth: Phys. Rev. C.18, 1328(1978).Google Scholar
  5. 5.
    C. Wagemans, A.J. Deruytter: Ann. Nucl. Energy, 3, 437(1976).Google Scholar
  6. 6.
    J. Blons: Nucl. Sci. Eng., 51, 130(1973).Google Scholar
  7. 7.
    G.A. Keyworth, C.E. Olsen, F.T. Seibel et al.: Phys. Rev. Lett., 17, 1077(1973).Google Scholar
  8. 8.
    J.A. Nelder, R. Mead: The Compo Journal, 7, 308(1965).Google Scholar
  9. 9.
    A. A. Vankov, V. F. Ukraintsev et al.: Nucl. Sci. Eng., 96, 122(1987).Google Scholar
  10. 10.
    R. Gwin, E.G. Silver, R.W. Ingle, H. Weaver: Nucl. Sci. Eng., 59, 79(1976).Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1992

Authors and Affiliations

  • V. V. Kolesov
    • 1
  • A. A. Lukyanov
    • 1
  1. 1.Obninsk Institute of Nuclear Power EngineeringIATEObninsk, Kaluga reg.USSR

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