Neutron capture in 122,123,124Te: a critical test for s-process studies.

Details Neutron capture in 122,123,124Te: a critical test for s-process studies. Neutron capture in 122,123,124Te: a critical test for s-process studies.

Nov 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991neca.book.....w&link_type=abstract

Neutron capture in 122,123,124Te: a critical test for s-process studies., by Wisshak, K.; Voß, F.; Käppeler, F.; Reffo, G.. Kern

Physics

1

Scientific paper

The neutron capture cross sections of 122,123,124,125,126Te were measured in the energy range from 10 to 200 keV at the Karlsruhe Van de Graaff accelerator using gold as a standard. Neutrons were produced via the 7Li(p, n)7Be reaction by bombarding metallic Li targets with a pulsed proton beam. Capture events were registered with the Karlsruhe 4π Barium Fluoride Detector. Several runs have been performed under different experimental conditions to study the systematic uncertainties in detail. The cross section ratios were determined with an overall uncertainty of ≡1%. Maxwellian averaged neutron capture cross sections were calculated for thermal energies between kT = 10 and 100 keV by normalizing the cross section shape up to 600 keV neutron energy reported in literature to the present data. These stellar cross sections were used in an s-process analysis. With the classical approach the abundances of the three s-only isotopes 122,123,124Te could be reproduced within the experimental uncertainties of ≡1%. The accuracy of the present data allowed also to derive constraints for the existing stellar models with respect to the effective neutron density. Furthermore, the p-process abundances for the tellurium isotopes are discussed.

Affiliated with

Also associated with

No associations

Rating

Neutron capture in 122,123,124Te: a critical test for s-process studies. 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 Neutron capture in 122,123,124Te: a critical test for s-process studies., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Neutron capture in 122,123,124Te: a critical test for s-process studies. will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1718401