Progress on the europium neutron capture study using DANCE

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS

卷:261

Article; Proceedings Paper

Agvaanluvsan, U. ; Becker, J. A. ; Macri, R. A. ; Parker, W. ; Wilk, P. ; Wu, C. Y. ; Bredeweg, T. A. ; Esch, E. ; Haight, R. C. ; O'Donnell, J. M. ; Reifarth, R. ; Rundberg, R. S. ; Schwantes, J. M. ; Ullmann, J. L. ; Vielra, D. J. ; Wilhelmy, J. B. ; Wouters, J. M. ; Mitchell, G. E. ; Sheets, S. ; Becvar, F. ; Krticka, M.

关键词: neutron capture;    neutron resonances;    statistical;   

DOI  :  10.1016/j.nimb.2007.03.107

来源: Elsevier

【 摘 要 】

The accurate measurement of neutron capture cross sections of the Eu isotopes is important for many reasons including nuclear astrophysics and nuclear diagnostics. Neutron capture excitation functions of Eu-151.153 targets were measured recently using a 4 pi gamma-ray calorimeter array DANCE located at the Los Alamos Neutron Science Center for E-n = 0.1-100 keV. The progress on the data analysis efforts is given in the present paper. The gamma-ray multiplicity distributions for the Eu targets and Be backing are significantly different. The gamma-ray multiplicity distribution is found to be the same for different neutron energies for both Eu-153 and Eu-153. The statistical simulation to model the gamma-ray decay cascade is summarized. (c) 2007 Elsevier B.V. All rights reserved.

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