Accession Number:

AD0681729

Title:

GAMMA-RAY SPECTRA OF THE PRODUCTS OF THERMAL-NEUTRON FISSION OF 235U AT SELECTED TIMES AFTER FISSION

Descriptive Note:

Technical rept.

Corporate Author:

NAVAL RADIOLOGICAL DEFENSE LAB SAN FRANCISCO CA

Personal Author(s):

Report Date:

1968-08-16

Pagination or Media Count:

40.0

Abstract:

Experimental measurements of the gamma-ray spectra emitted by the products of thermal-neutron fission of 235U have been made at nine selected times 14, 12, 1, 2, 5, 10, 24, 48, and 72 hours after fission. A calibrated and highly collimated 5 in. x 5 in. NaIT1 detector was used. The 100-energy-bin gamma-ray spectra were unfolded from the pulse-height distributions by means of an iterative method. Extensive use was made of machine computation. The number of fissions in each sample was determined radiochemically.

Subject Categories:

  • Radioactivity, Radioactive Wastes and Fission Products

Distribution Statement:

APPROVED FOR PUBLIC RELEASE