Nuclear fragmentation reactions in extended media studied with Geant4 toolkit

Details Nuclear fragmentation reactions in extended media studied with Geant4 toolkit Nuclear fragmentation reactions in extended media studied with Geant4 toolkit

2009-11-10

arxiv.org/abs/0911.2017v1

Nucl. Inst. & Meth. Phys. Res. Sec. B 268 (2010) 604-615

Physics

Medical Physics

10 color figures

Scientific paper

10.1016/j.nimb.2009.12.023

It is well known from numerous experiments that nuclear multifragmentation is a dominating mechanism for production of intermediate-mass fragments in nucleus-nucleus collisions at energies above 100 A MeV. In this paper we investigate the validity and performance of the Fermi break-up model and the statistical multifragmentation model implemented as parts of the Geant4 toolkit. We study the impact of violent nuclear disintegration reactions on the depth-dose profiles and yields of secondary fragments for beams of light and medium-weight nuclei propagating in extended media. Implications for ion-beam cancer therapy and shielding from cosmic radiation are discussed.

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