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| HAL : in2p3-00480024, version 1 |
| Fiche détaillée |  Récupérer au format |
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| IEEE Transactions on Nuclear Science 57 (5) (2010) 2768-2772 |
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| Monte Carlo simulations of prompt-gamma emission during carbon ion irradiation |
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| F. Le Foulher1M. Bajard1M. Chevallier1D. Dauvergne1N. Freud2P. Henriquet1S. Karkar3J.M. Létang2L. Lestand4R. PlescakC. Ray1D. SchardtE. Testa1M. Testa1 |
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| (2010) |
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| Monte Carlo simulations based on the Geant4 toolkit (version 9.1) were performed to study the emission of secondary prompt-gamma rays produced by nuclear reactions during carbon ion-beam therapy. These simulations were performed along with an experimental program and instrumentation developments which aim at designing a prompt-gamma ray device for real-time control of hadrontherapy. The objective of the present study is twofold: firstly, to present the features of the prompt-gamma radiation in the case of carbon ion irradiation; secondly, to simulate the experimental setup and to compare measured and simulated counting rates corresponding to four different experiments. For each experiment, we found that simulations overestimate prompt-gamma ray detection yields by a factor of 12. Uncertainties in fragmentation cross sections and binary cascade model cannot explain such discrepancies. The so-called “photon evaporation” model is therefore questionable and its modification is currently in progress. |
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| CAS-PHABIO |
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| Thème(s) | : | Physique/Physique/Physique Médicale Informatique/Imagerie médicale Informatique/Modélisation et simulation |
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| in2p3-00480024, version 1 | |
| http://hal.in2p3.fr/in2p3-00480024 | |
| oai:hal.in2p3.fr:in2p3-00480024 | |
| Contributeur : Dominique Girod | |
| Déposé pour le compte de : | |
| Soumis le : Lundi 3 Mai 2010, 13:13:49 | |
| Dernière modification le : Vendredi 29 Octobre 2010, 15:04:09 | |
