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Shaughnessy, Dawn A.; Gregorich, Kenneth E.; Adams, Jeb L.; Lane, Michael R.; Laue, Carola A.; Lee, Diana M.; McGrath, Christopher A.; Ninov, Victor; Patin, Joshua B.; Strellis, Dan A.; Sylwester, Eric R.; Wilk, Philip A.; Hoffman, Darleane C.
Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (United States). Funding organisation: USDOE Director, Office of Science. Office of High Energy and Nuclear Physics. Division of Nuclear Physics (United States)2001
Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (United States). Funding organisation: USDOE Director, Office of Science. Office of High Energy and Nuclear Physics. Division of Nuclear Physics (United States)2001
AbstractAbstract
[en] Electron-capture delayed fission was observed in 244Es produced via the 237Np(12C,5n)244Es reaction at 81 MeV (on target) with a production cross section of 0.31±0.12 (micro)b. The mass-yield distribution of the fission fragments is highly asymmetric. The average preneutron-emission total kinetic energy of the fragments was measured to be 186±19 MeV. Based on the ratio of the number of fission events to the measured number of α decays from the electron-capture daughter 244Cf (100% α branch), the probability of delayed fission was determined to be (1.2±0.4) x 10-4. This value for the delayed fission probability fits the experimentally observed trend of increasing delayed fission probability with increasing Q value for electron-capture
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16 Mar 2001; 22 p; AC--03-76SF00098; Also available from OSTI as DE00843126; PURL: https://www.osti.gov/servlets/purl/843126-KU4Z8K/native/; Submitted to Physical Review C: Volume 6502, No.2; Journal Publication Date: 02/2002
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Miscellaneous
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ACTINIDE NUCLEI, ALPHA DECAY RADIOISOTOPES, BARYONS, BEAMS, BETA DECAY RADIOISOTOPES, CAPTURE, EINSTEINIUM ISOTOPES, ELECTRON CAPTURE RADIOISOTOPES, ELEMENTARY PARTICLES, ENERGY, FERMIONS, HADRONS, HEAVY NUCLEI, ION BEAMS, ISOTOPES, NUCLEAR FRAGMENTS, NUCLEAR REACTIONS, NUCLEI, NUCLEONS, ODD-ODD NUCLEI, RADIOISOTOPES, SECONDS LIVING RADIOISOTOPES, TARGETS
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