An Experimental Study of the Relative U²³⁵ Fission Activation as a Function of Energy in Slightly Enriched Uranium-Water Lattices

Journal Article · Tue Nov 01 00:00:00 EST 1960 · Nuclear Science and Engineering

OSTI ID:4112522

Volpe, J. J. ^[1]; Klein, D. ^[1]

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1. Westinghouse Electric Corp., Pittsburgh, PA (United States)

Measurements of the relative U²³⁵ fission rates as a function of energy were made for the TRX facility, a slightly enriched uranium, light water moderated critical assembly. The parameter directly measured is the ratio of the activity of a bare U²³⁵ foil to that of a similar foil enclosed in a box of absorbing material, which was either cadmium, boron, or gadolinium. The energy dependence associated with these ratios was obtained by the introduction to "effective cutoff energies" for the absorbing shields. A comparison is made with calculated values, based upon a simplified model for the neutron energy spectrum present, and the agreement is considered adequate.

• Research Organization: Westinghouse Electric Corp., Pittsburgh, PA (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA), Nuclear Criticality Safety Program (NCSP); US Atomic Energy Commission (AEC)
• DOE Contract Number: NONE
• NSA Number: NSA-15-005702
• OSTI ID: 4112522
• Report Number(s): WAPD-T--1199
• Journal Information: Nuclear Science and Engineering, Journal Name: Nuclear Science and Engineering Vol. 8; ISSN 0029-5639
• Publisher: Taylor & Francis
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ABSORPTION
ACTIVATION
BORON
CADMIUM
ENERGY
ENRICHMENT
FISSION
FOILS
GADOLINIUM
LATTICES
MEASURED VALUES
NEUTRONS
Nuclear Criticality Safety Program (NCSP)
SHIELDING
SPECTRA
URANIUM
WATER