Fission Cross-Section Measurements of the Odd-Odd Isotopes 232Pa, 238Np, and 236Np
| Autor: | J. B. Wilhelmy, R. Hilko, Yaron Danon, Guthrie Miller, W. A. Taylor, M. S. Moore, R. Harper, P. E. Koehler, M. A. Yates, N. W. Hill, L. J. Rowton, P. E. Littleton, A.D. Carlson, M. A. Ott |
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| Rok vydání: | 1996 |
| Předmět: |
Fission products
Cold fission Materials science Nuclear transmutation 010308 nuclear & particles physics Fission Isotopes of samarium 0211 other engineering and technologies 02 engineering and technology Fission product yield 01 natural sciences Fast fission Nuclear physics Nuclear Energy and Engineering 0103 physical sciences 021108 energy Isotopes of caesium |
| Zdroj: | Nuclear Science and Engineering. 124:482-491 |
| ISSN: | 1943-748X 0029-5639 |
| DOI: | 10.13182/nse96-a17926 |
| Popis: | Transmutation of actinide waste into fission products could be enhanced by using resonance fission of odd-odd target materials; those of interest are 232Pa, 238Np, and 242Am. Fission cross-section measurements of two of these short-lived materials were performed at Los Alamos National Laboratory. Samples were produced by the (d,2n) reaction in the Los Alamos Ion Beam Facility followed by fast radiochemistry to separate the odd-odd target of interest. The fission cross section of the nanogram samples was measured in a high intensity pulsed neutron beam produced by 800-MeV proton spallation. Using this procedure, the fission cross sections of the 1.3-day 232Pa and 2.1-day 238Np were successfully measured in the energy range from 0.01 eV to 50 keV. The fission cross section of the relatively long-life isotope 236Np was also measured in the same system while the short half-life isotopes were being prepared. The results and resonance analysis are presented. |
| Databáze: | OpenAIRE |
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