Fragment mass distributions for heavy nuclei fission induced by intermediate energy probes

Andrade-II, E.; Menezes, J C M; Duarte, S. B.; Garcı́a, F.; Rossi, P.; Tavares, O. A. P.; Deppman, A.

doi:10.1088/1742-6596/312/8/082010

Cited by 1 publication

(2 citation statements)

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“…In recent papers [17,18] we discussed about the effects of the mass-and energy-distributions on the final fragment mass distributions. We have shown that in fission induced by high energy probes, as protons and photons, the fissioning nuclei are quite different from the target nucleus due to the emission of particles during intranuclear cascade and during the evaporation steps before fission occurs.…”

Section: Introductionmentioning

confidence: 99%

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Effects of fissioning nuclei distributions on fragment mass distributions for high energy fission

Andrade-II

Menezes

Duarte

et al. 2012

EPJ Web of Conferences

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Abstract.We study the effects of fissioning nuclei mass-and energy-distributions on the formation of fragments for fission induced by high energy probes. A Monte Carlo code called CRISP was used for obtaining mass distributions and spectra of the fissioning nuclei for reactions induced by 660 MeV protons on 241 Am and on 239 Np, by 500 MeV protons on 208 Pb, and by Bremsstrahlung photons with end-point energies at 50 MeV and 3500 MeV on 238 U. The results show that even at high excitation energies, asymmetric fission may still contribute significantly to the fission cross section of actinide nuclei, while it is the dominante mode in the case of lead. However, more precise data for high energy fission on actinide are necessary in order to allow definite conclusions.

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Section: Introductionmentioning

confidence: 99%

“…In [17,18] we have shown how to unfold the contributions due to fission modes and to fissioningnuclei distribution in the fragment-mass distribution by using Monte Carlo method. CRISP is a Monte Carlo code for simulating nuclear reactions [20] that uses a two step process.…”

Section: Introductionmentioning

confidence: 99%