Iron and cadmium capture gamma-ray photofission measurements
- 1. Virginia Univ., Charlottesville, VA (USA). Dept. of Nuclear Engineering
- 2. National Inst. of Standards and Technology, Gaithersburg, MD (USA)
Description
Photofission measurements have been made in 238U, 232Th, and 237Np in iron and cadmium capture gamma-ray spectra in cylindrical neutron-driven gamma-ray sources in the thermal column of the National Bureau of Standards (NBS) Reactor. The gamma-ray source strength was measured with neutron activation foils and by direct counting of activations produced in the metal cylinders. Photofission measurements were made with NBS miniature fission chambers. The integral photofission cross sections were compared with differential measurements by integrating the capture gamma-ray spectra with measured cross-section shapes. The integral cross sections measured in the capture gamma-ray fields are lower than the cross sections calculated from measured differential data
Additional details
Publishing Information
- Journal Title
- Nuclear Science and Engineering
- Journal Volume
- 104
- Journal Issue
- 1
- Series
- Nucl. Sci. Eng.
- Journal Page Range
- 46-52
- ISSN
- 0029-5639
- CODEN
- NSENA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 21085842
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS; S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- ACTIVATION ENERGY; ALGORITHMS; CADMIUM; CROSS SECTIONS; FISSION CHAMBERS; FOILS; GAMMA RADIATION; GAMMA SOURCES; GAMMA SPECTRA; IRON; NBSR REACTOR; NEPTUNIUM 237; NEUTRON REACTIONS; PHOTOFISSION; THORIUM 232; URANIUM 238; US NBS
- Descriptors DEC
- ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; BARYON REACTIONS; ELECTROMAGNETIC RADIATION; ELEMENTS; ENERGY; EVEN-EVEN NUCLEI; FISSION; HADRON REACTIONS; HEAVY NUCLEI; HEAVY WATER COOLED REACTORS; HEAVY WATER MODERATED REACTORS; IONIZATION CHAMBERS; IONIZING RADIATIONS; IRRADIATION REACTORS; ISOTOPES; MATERIALS TESTING REACTORS; MEASURING INSTRUMENTS; METALS; NATIONAL ORGANIZATIONS; NEPTUNIUM ISOTOPES; NEUTRON DETECTORS; NUCLEAR REACTIONS; NUCLEI; NUCLEON REACTIONS; ODD-EVEN NUCLEI; PHOTONUCLEAR REACTIONS; RADIATION DETECTORS; RADIATION SOURCES; RADIATIONS; RADIOISOTOPES; REACTORS; RESEARCH AND TEST REACTORS; RESEARCH REACTORS; SPECTRA; SPONTANEOUS FISSION RADIOISOTO; TANK TYPE REACTORS; THERMAL REACTORS; THORIUM ISOTOPES; TRANSITION ELEMENTS; URANIUM ISOTOPES; US ORGANIZATIONS; YEARS LIVING RADIOISOTOPES