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High-energy gamma-rays accompanying the spontaneous fission of252Cf |
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| Authors: | A Hotzel P Thirolf Ch Ender D Schwalm M Mutterer P Singer M Klemens J P Theobald M Hesse F Gönnenwein H v d Ploeg |
| Institution: | 1. Max-Planck-Institut für Kernphysik, D-69117, Heidelberg, Germany 2. Physikalisches Institut, Universit?t Heidelberg, D-69120, Heidelberg, Germany 5. Institut für Kernphysik, Technische Hochschule Darmstadt, D-64289, Darmstadt, Germany 6. Physikalisches Institut dr Universit?t Tübingen, D-72076, Tübingen, Germany 7. Institut de Physique Nucleaire, F-91406, Orsay Cedex, France |
| Abstract: | Theγ-ray spectrum of252Cf(sf) was measured in the Darmstadt-Heidelberg Crystal Ball spectrometer, with a double ionization chamber mounted inside to detect the fission fragments. The measurement was aimed at a better understanding of an unusual component found in the high-energy region between 3 and 8 MeV, with fragment mass splits near symmetry. This component was proved to be predominantly emitted by the heavier fragment, to reach its highest intensity at a fragment mass split of 132:120, and to have an almost isotropic angular distribution. Calculations with the statistical code CASCADE could reproduce the main features. |
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