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

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 (1/4, 1/2, 1, 2, 5, 10, 24, 48, and 72 hours) after fission. A calibrated and highly collimated 5 in. x 5 in. NaI(T1) 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.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Aug 16, 1968
Accession Number
AD0681729

Entities

People

  • Daniel Sam
  • Leland R. Bunney

Organizations

  • Naval Radiological Defense Laboratory

Tags

DTIC Thesaurus Topics

  • Analyzers
  • Civil Defense
  • Detectors
  • Fast Neutrons
  • Fissile Materials
  • Fission Products
  • Gamma Ray Spectra
  • Gamma Rays
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Measurement
  • Nuclear Explosions
  • Nuclear Warfare
  • Nuclear Weapons
  • Radioactive Decay
  • Thermal Neutrons

Fields of Study

  • Physics

Readers

  • Nuclear and Radiation Engineering.