This title appears in the Scientific Report :
2006
Please use the identifier:
http://dx.doi.org/10.1016/j.nuclphysa.2005.10.014 in citations.
Charged particle evaporation and pre-equilibrium emission in 1.2eV proton-induced spallation reactions
Charged particle evaporation and pre-equilibrium emission in 1.2eV proton-induced spallation reactions
Absolute cross sections, energy spectra, and angular distributions have been measured for H-1,H-2,H-3, He-3,He-4,He-6, Li-6,Li-7,Li-8,Li-9 and Be-7,Be-9,Be-10 isotopes produced in 1.2 GeV proton-induced spallation reactions with tar gets between Al and Th. Results Of Simulation calculations with the...
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Personal Name(s): | Herbach, C. M. |
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Filges, D. / Galin, J. / Goldenbaum, F. / Hilscher, D. / Jahnke, U. / Letourneau, A. / Peghaire, A. / Pienkowski, L. / Schröder, U. / Tishchenko, V. / Toke, J. | |
Contributing Institute: |
Institut 1 (Experimentelle Kernphysik I); IKP-E-I |
Published in: |
Nuclear physics |
Imprint: |
Amsterdam
North-Holland Publ. Co.
2006
|
DOI: |
10.1016/j.nuclphysa.2005.10.014 |
Document Type: |
Journal Article |
Research Program: |
Physik der Hadronen und Kerne |
Series Title: |
Nuclear Physics A
765 |
Subject (ZB): | |
Publikationsportal JuSER |
Absolute cross sections, energy spectra, and angular distributions have been measured for H-1,H-2,H-3, He-3,He-4,He-6, Li-6,Li-7,Li-8,Li-9 and Be-7,Be-9,Be-10 isotopes produced in 1.2 GeV proton-induced spallation reactions with tar gets between Al and Th. Results Of Simulation calculations with the intra-nuclear cascade code INCL2.0 coupled to the statistical model GEMINI are in good agreement with these data, as to charged-particle evaporation, mean excitation energy, and mean linear momentum transfer. The pre-equilibriLlin emission of composite particles, not accounted for in these simulations, however, typically contributes to the total Production Of composite particles by 40-60% for H-2 and He-3, 20-40% for H-3, 5-20% for He-4, and about 15-25% for Li and Be. The composite pre-equilibriurn particles together carry off a mean energy Of LIP to 50 MeV, i.e., about 30% compared to the inean energy released by particle evaporation. For deuterons, pre-equilibrium emission is shown to be well described by surface coalescence while definitely other mechanisms are required for He-4 and heavier clusters. (c) 2005 Elsevier B.V. All riahts reserved. |