Accession Number:

AD0668022

Title:

IDENTIFICATION AND YIELD OF PD117 IN THE THERMAL-NEUTRON FISSION OF U235

Descriptive Note:

Corporate Author:

NAVAL RADIOLOGICAL DEFENSE LAB SAN FRANCISCO CA

Report Date:

1968-02-12

Pagination or Media Count:

15.0

Abstract:

As part of a study of nuclear charge distribution in the region of symmetric fission, the existence and cumulative fission yield of 117Pd were sought. Palladium was isolated free from silver and cadmium at different times after fission and the quantity of descendant 117Cd activity was measured. A half-life for 117Pd of 5.0 0.5 or -0.7 sec was derived from these data. Through a comparison of 117Cd activity produced by 117Pd with the total 117Cd activity produced by all isobars, a cumulative fractional chain yield of 0.682 was computed for 117Pd. From this yield the most probable nuclear charge Zp for the 117-mass chain was estimated.

Subject Categories:

  • Radioactivity, Radioactive Wastes and Fission Products
  • Nuclear Physics and Elementary Particle Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE