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Phys. Rev. C 77, 044608 (2008) [7 pages]

Measurement of the thermal neutron capture cross section and the resonance integral of radioactive 182Hf

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C. Vockenhuber*
TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, V6T 2A3, Canada

M. Bichler
Vienna University of Technology, Atomic Institute of the Austrian Universities, Stadionallee 2, A-1020 Wien, Austria

A. Wallner and W. Kutschera
Vienna Environmental Research Accelerator (VERA), Fakultät für Physik, Universität Wien, Währinger Strasse 17, A-1090 Wien, Austria

I. Dillmann† and F. Käppeler
Institut für Kernphysik, Forschungszentrum Karlsruhe, Postfach 3640, D-76021 Karlsruhe, Germany

Received 24 January 2008; published 30 April 2008

The neutron capture cross sections of the radioactive isotope 182Hf (t1/2=8.9×106 yr) in the thermal and epithermal energy regions have been measured by activation at the TRIGA Mark-II reactor of the Atomic Institute of the Austrian Universities in Vienna, Austria, and subsequent γ-ray spectroscopy of 183Hf. High values for the thermal (kT=25 meV) cross section σ0=133±10 b and for the resonance integral I0=5850±660 b were found. Additionally, the absolute intensities of the main γ-ray transitions in the decay of 182Hf have been considerably improved.

© 2008 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.77.044608
DOI:
10.1103/PhysRevC.77.044608
PACS:
25.40.Lw, 26.30.-k, 27.70.+q

*christof.vockenhuber@triumf.ca

†Also at Departement für Physik und Astronomie, Universität Basel, Switzerland (previous address); now at Physik Department E12, Technische Universität München, D-85748 Garching, Germany

 
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