Search for E2 strength in electrofission of 238U and 232Th |
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Authors: | U Kneissl G Kuhl KH Leister A Weller |
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Institution: | Institute for Theoretical Physics, Universität Frankfurt / M., W. Germany |
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Abstract: | We have measured the cross-section ratio σ?/σ+ for the electron and positron induced fission of uranium and thorium in the energy range 10–40 MeV with detectors at 90° and in a 2π geometry. The observed periodic structure is discussed with respect to E2 admixtures and an anisotropy of the angular distribution, after the onset of each higher chance fission threshold, as well as with respect to the shape of the photofission cross section. |
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Keywords: | Nuclear Reactions |
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