Thermal neutron capture onto the stable tungsten isotopes

A. M. Hurst, R. B. Firestone, B. W. Sleaford, N. C. Summers, Zs Revay, L. Szentmiklósi, T. Belgya, M. S. Basunia, R. Capote, H. Choi, D. Dashdorj, J. Escher, M. Krticka, A. Nichols

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Abstract

Thermal neutron-capture measurements of the stable tungsten isotopes have been carried out using the guided thermal-neutron beam at the Budapest Reactor. Prompt singles spectra were collected and analyzed using the HYPERMET γ-ray analysis software package for the compound tungsten systems 183W, 184W, and 187W, prepared from isotopically-enriched samples of 182W, 183W, and 186W, respectively. These new data provide both confirmation and new insights into the decay schemes and structure of the tungsten isotopes reported in the Evaluated Gamma-ray Activation File based upon previous elemental analysis. The experimental data have also been compared to Monte Carlo simulations of γ-ray emission following the thermal neutron-capture process using the statistical-decay code DICEBOX. Together, the experimental cross sections and modeledfeeding contribution from the quasi continuum, have been used to determine the total radiative thermal neutron-capture cross sections for the tungsten isotopes and provide improved decay-scheme information for the structural- and neutron-data libraries.

Original languageEnglish
Article number10005
JournalEPJ Web of Conferences
Volume21
DOIs
Publication statusPublished - Dec 1 2012
Event3rd International Workshop on Compound Nuclear Reactions and Related Topics, CNR 2011 - Prague, Czech Republic
Duration: Sep 19 2011Sep 23 2011

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Hurst, A. M., Firestone, R. B., Sleaford, B. W., Summers, N. C., Revay, Z., Szentmiklósi, L., Belgya, T., Basunia, M. S., Capote, R., Choi, H., Dashdorj, D., Escher, J., Krticka, M., & Nichols, A. (2012). Thermal neutron capture onto the stable tungsten isotopes. EPJ Web of Conferences, 21, [10005]. https://doi.org/10.1051/epjconf/20122110005