Abstract
Partiele-aecompanied fission, known also as ternary fission, is a process where, elose to the instant of scission, a light charged particle is ejected from the space between the emerging fission fragments. Since only a few fission events in a thousand are such ternary fragmentations, preeise ternary fission experiments are generally hard to perform. The present report is primarily concerned with arecent experimental study on the ternary fission of 252 Cf(sf) which was carried out with the Darmstadt-Heidelberg 4π NaI(Tl) Crystal Ball spectrometer as highly efficient γ-ray and neutron detector which was additionally equipped with deteetors for fission fragments and ternary particles. This advanced multiparameter study was able to cover besides the most abundant (α-particle-accompanied fission process also much rarer fission modes with emission of various ternary particles, from tritons to carbon nuclei. The present report will be complimented with the results from other recent experiments, and by an outlook to future work.
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