Abstract
Bremsstrahlung with endpoint energies slightly above the fission barrier is produced from stopping an electron beam in a thick copper target. Mass, total kinetic energy (TKE) and angular distribution of the fission fragments were determined by means of the double kinetic energy technique, using a twin Frisch-grid ionization chamber. First results on angular distributions and their correlations with mass and TKE of the fragments as well as an analysis within the fission-mode concept of the multi-modal random neck-rupture model by Brosa et al.[2], are presented [3]. It is shown that the emission angle of the fission fragments can be extracted from an electron drift-time measurement [4] and that the target thickness influences the experimental results [5].
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