Measurement of γ-emission branching ratios for ^{154,156,158}Gd compound nuclei: Tests of surrogate nuclear reaction approximations for (n,γ) cross sections

Details Measurement of γ-emission branching ratios for ^{154,156,158}Gd compound nuclei: Tests of surrogate nuclear reaction approximations for (n,γ) cross sections Measurement of γ-emission branching ratios for ^{154,156,158}Gd compound nuclei: Tests of surrogate nuclear reaction approximations for (n,γ) cross sections

Mar 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010phrvc..81c4608s&link_type=abstract

Physical Review C, vol. 81, Issue 3, id. 034608

Physics

7

Surrogate Reactions, Statistical Compound-Nucleus Reactions, S-Process, Radiative Capture

Scientific paper

The surrogate nuclear reaction method can be used to determine neutron-induced reaction cross sections from measured decay properties of a compound nucleus created using a different reaction and calculated formation cross sections. The reliability of (n,γ) cross sections determined using the Weisskopf-Ewing and ratio approximations are explored for the Gd155,157(n,γ) reactions. Enriched gadolinium targets were bombarded with 22-MeV protons and γ rays were detected in coincidence with scattered protons using the Silicon Telescope Array for Reaction Studies/Livermore-Berkeley Array for Collaborative Experiments (STARS/LiBerACE) silicon and germanium detector arrays. The γ-emission probabilities for the Gd154,156,158 compound nuclei were measured at excitation energies up to 12 MeV. It is found that the approximations yield results that deviate from directly measured Gd155,157(n,γ) cross sections at low energies. To extract reliable cross sections, a more sophisticated analysis should be developed that takes into account angular-momentum differences between the neutron-induced and surrogate reactions.

Affiliated with

Also associated with

No associations

Rating

Measurement of γ-emission branching ratios for ^{154,156,158}Gd compound nuclei: Tests of surrogate nuclear reaction approximations for (n,γ) cross sections does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Measurement of γ-emission branching ratios for ^{154,156,158}Gd compound nuclei: Tests of surrogate nuclear reaction approximations for (n,γ) cross sections, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Measurement of γ-emission branching ratios for ^{154,156,158}Gd compound nuclei: Tests of surrogate nuclear reaction approximations for (n,γ) cross sections will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1224764