Measurements of neutron-induced fission cross-section ratios involving isotopes of uranium and plutonium. [0. 001 to 30 MeV, cross sections] [electronic resource]
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| Online Access: |
Online Access |
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| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Livermore, Calif : Oak Ridge, Tenn. :
Lawrence Livermore National Laboratory ; distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy,
1976.
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| Abstract: | A procedure, called the threshold cross section method was applied to our experimental data involving four uranium (²³³U ²³⁴U, ²³⁶U, and ²³⁸U) and five plutonium (²³⁹Pu, ²⁴°Pu, ²⁴¹Pu, ²⁴²Pu, and ²⁴⁴Pu) isotopes to determine ratios of fission cross sections relative to ²³⁵U. The data were gathered using ionization fission chambers and the time-of-flight technique at the LLL 100-MeV electron linear accelerator: measurements span the neutron energy range of 0.001 to 30 MeV. Experimental uncertainties common to past measurements were either eliminated or significantly reduced in this study by use of the threshold method, thereby making higher accuracies possible. The cross section ratios are absolute in the sense that they do not depend on the work of others. Results from our ratios involving ²³³U, ²³⁵U, ²³⁸U, and ²³⁹Pu are used to illustrate this method. |
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| Item Description: | Published through the Information Bridge: DOE Scientific and Technical Information. 06/08/1976. "ucrl-78268" " conf-760647-2" NEANDC/NEACRP specialists meeting on fast neutron fission cross sections of U-233, U-235, U-238, and Pu-239, Argonne, IL, USA, 28 Jun 1976. Behrens, J.W.; Carlson, G.W. |
| Physical Description: | Pages: 25 : digital, PDF file. |