12C nuclear reaction measurements for hadrontherapy

Abstract : Hadrontherapy treatments require a very high precision on the dose deposition ( 2.5% and 1-2mm) in order to keep the benefits of the precise ions' ballistic. The largest uncertainty on the physical dose deposition is due to ion fragmentation. Up to now, the simulation codes are not able to reproduce the fragmentation process with the required precision. To constraint the nuclear models and complete fragmentation cross sections databases; our collaboration has performed an experiment on May 2008 at GANIL with a 95 MeV/u 12C beam. We have measured the fluence, energy and angular distributions of charged fragments and neutrons coming from nuclear reactions of incident 12C on thick water-like PMMA targets. Preliminary comparisons between GEANT4 (G4BinaryLightIonReaction) simulations and experimental data show huge discrepancies.
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Communication dans un congrès
F. Cerutti, A. Ferrari. 12th International Conference on Nuclear Reaction Mechanisms, Jun 2009, Varenna, Italy. Cern, Vol. 2, pp.531-537, 2010
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  • HAL Id : in2p3-00449227, version 1

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B. Braunn, M. Labalme, G. Ban, D. Cussol, J.M. Fontbonne, et al.. 12C nuclear reaction measurements for hadrontherapy. F. Cerutti, A. Ferrari. 12th International Conference on Nuclear Reaction Mechanisms, Jun 2009, Varenna, Italy. Cern, Vol. 2, pp.531-537, 2010. 〈in2p3-00449227〉

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