Momentum Transfer in Heavy-Ion-Induced Fission

Abstract

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Ternary fission involving4He emission in the16O (144 MeV)+232Th and12C (108 MeV)+197Au reactions

“…The mean and FWHM values of the TKEI~AB and M F distributions presented in Fig. 2 are in agreement with the values obtained for similar systems in [22][23][24][25][26]. The comparison between the calculated curves and experimental points suggests that the fusion-fission reaction with the full momentum transfer is the main process in our case.…”

“…It should also be noticed that there is a slight asymmetry of the experimental 0 F distribution for the 160+232Th reaction. The same asymmetry due to reactions with incomplete momentum transfer was observed in the previously reported measurements of similar systems [23].…”

Evidence for the production of compound nuclei with atomic number 110

“…As was shown in refs, (1] and (2] the narrow and wide peaks consist of fragments from nuclei produced in reactions characterized respectively, by complete fusion (CF) a:nd incomplete fusion (ICF) of target and io~ nuclei.…”

“…[1], [2], and [3]. We shall'give a brief description and only disauss some of the few modifications we had to introduce.…”

Multifragmentation in Heavy-Ion Processes

“…Perhaps, the experimental approach most widely used has been the determination of the fission-fragment folding angle (127,(181)(182)(183)(184)(185)(186)(187)(188)(189)(190)(191)(192) in reactions induced by an intermediate energy heavy ion on a rather fissionable target, lil<e Au, Thor U. The distribution of folding angles typically shows two peaks, one close to 180°, characteristic of grazing collisions, and another, very broad, at a smaller angle.…”