Neutron induced cross section measurements on ^89Y and ^90Zr

Details Neutron induced cross section measurements on ^89Y and ^90Zr Neutron induced cross section measurements on ^89Y and ^90Zr

Apr 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aps..apro10011g&link_type=abstract

American Physical Society, April Meeting, Jointly Sponsored with the High Energy Astrophysics Division (HEAD) of the American As

Astronomy and Astrophysics

Astrophysics

Scientific paper

The GEANIE spectrometer located at the LANSCE/WNR facility is capable of measuring absolute partial γ-ray cross sections as a function of neutron energy. Using GEANIE, measurements on targets of ^89Y and ^90Zr were performed and the partial γ-ray cross sections extracted for neutron energies up to 20 MeV. For the (n,n^') channel, the observation of most of the ground-state transitions and those feeding the long-lived isomeric states greatly reduces the reliance on model calculations to extract the channel cross section, and, in fact, provide a very stringent test of the calculations. For higher-multiplicity particle-exit channels, model calculations have to be relied on to a far greater degree in order to extract the channel cross sections. The results of the measurements will be presented, as well as comparisons with calculations and inferred channel cross sections.

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