Accession Number : AD0645105

Title :   BETA SPECTRA. III. SPECTRA OF U235 FISSION PRODUCTS AT SELECTED TIMES AFTER FISSION,

Corporate Author : NAVAL RADIOLOGICAL DEFENSE LAB SAN FRANCISCO CALIF

Personal Author(s) : Hogan,O. L.

Report Date : 03 OCT 1966

Pagination or Media Count : 58

Abstract : Composite beta spectra for mixed fission products of U235 have been computed as the weighted sum of the theoretical beta spectra of the individual emitters. Reactor operating times used were: 0, 30, 60, 120, 240, 480, and 960 seconds, and 1 year. Sixteen decay times between 1000 and 10 to the 8th power seconds were used. Results are graphically presented and are considered accurate to within 15% for decay times less than 10000 seconds, and to within 5 % for times greater than 10000 seconds. (Author)

Descriptors :   (*BETA RAY SPECTRUM, EXPERIMENTAL DATA), (*FISSION PRODUCTS, BETA RAY SPECTRUM), URANIUM, FISSION PRODUCT ACTIVITY, RADIOACTIVE DECAY, RADIATION HAZARDS, NUCLEAR PROPULSION, ATMOSPHERE ENTRY

Subject Categories : Nuclear Physics & Elementary Particle Physics
      Nuclear Propulsion

Distribution Statement : APPROVED FOR PUBLIC RELEASE