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4 results on '"Stepan, Vaclav"'

1. Track structure modeling in liquid water: A review of the Geant4-DNA very low energy extension of the Geant4 Monte Carlo simulation toolkit

Author

Bernal, Mario A., Bordage, Marie Claude, Brown, Jeremy Michael Cooney, Davídková, Marie, Delage, E., El Bitar, Ziad Ei, Enger, Shirin A., Francis, Ziad, Guatelli, Susanna, Ivanchenko, Vladimir N., Karamitros, Mathieu, Kyriakou, Ioanna, Maigne, Lydia, Meylan, S., Murakami, Kouichi, Okada, Shogo, Payno, H., Perrot, Yann, Petrović, Ivan M., Pham, Q. T., Ristić-Fira, Aleksandra, Sasaki, Takashi, Stepan, Vaclav, Tran, Hoang Ngoc, Villagrasa, Carmen, Incerti, Sebastien, Bernal, Mario A., Bordage, Marie Claude, Brown, Jeremy Michael Cooney, Davídková, Marie, Delage, E., El Bitar, Ziad Ei, Enger, Shirin A., Francis, Ziad, Guatelli, Susanna, Ivanchenko, Vladimir N., Karamitros, Mathieu, Kyriakou, Ioanna, Maigne, Lydia, Meylan, S., Murakami, Kouichi, Okada, Shogo, Payno, H., Perrot, Yann, Petrović, Ivan M., Pham, Q. T., Ristić-Fira, Aleksandra, Sasaki, Takashi, Stepan, Vaclav, Tran, Hoang Ngoc, Villagrasa, Carmen, and Incerti, Sebastien

Abstract

Understanding the fundamental mechanisms involved in the induction of biological damage by ionizing radiation remains a major challenge of todays radiobiology research. The Monte Carlo simulation of physical, physicochemical and chemical processes involved may provide a powerful tool for the simulation of early damage induction. The Geant4-DNA extension of the general purpose Monte Carlo Geant4 simulation toolkit aims to provide the scientific community with an open source access platform for the mechanistic simulation of such early damage. This paper presents the most recent review of the Geant4-DNA extension, as available to Geant4 users since June 2015 (release 10.2 Beta). In particular, the review includes the description of new physical models for the description of electron elastic and inelastic interactions in liquid water, as well as new examples dedicated to the simulation of physicochemical and chemical stages of water radiolysis. Several implementations of geometrical models of biological targets are presented as well, and the list of Geant4-DNA examples is described. (C) 2015 Associazione Italiana di Fisica Medica. Published by Elsevier Ltd. All rights reserved.

Published
2015

2. Track structure modeling in liquid water: A review of the Geant4-DNA very low energy extension of the Geant4 Monte Carlo simulation toolkit

Author

Bernal, Mario A., Bordage, Marie Claude, Brown, Jeremy Michael Cooney, Davídková, Marie, Delage, E., El Bitar, Ziad Ei, Enger, Shirin A., Francis, Ziad, Guatelli, Susanna, Ivanchenko, Vladimir N., Karamitros, Mathieu, Kyriakou, Ioanna, Maigne, Lydia, Meylan, Sylvain, Murakami, Kouichi, Okada, Shogo, Payno, H., Perrot, Yann, Petrović, Ivan M., Pham, Q. T., Ristić-Fira, Aleksandra, Sasaki, Takashi, Stepan, Vaclav, Tran, Ngoc Hoang, Villagrasa, Carmen, Incerti, Sebastien, Bernal, Mario A., Bordage, Marie Claude, Brown, Jeremy Michael Cooney, Davídková, Marie, Delage, E., El Bitar, Ziad Ei, Enger, Shirin A., Francis, Ziad, Guatelli, Susanna, Ivanchenko, Vladimir N., Karamitros, Mathieu, Kyriakou, Ioanna, Maigne, Lydia, Meylan, Sylvain, Murakami, Kouichi, Okada, Shogo, Payno, H., Perrot, Yann, Petrović, Ivan M., Pham, Q. T., Ristić-Fira, Aleksandra, Sasaki, Takashi, Stepan, Vaclav, Tran, Ngoc Hoang, Villagrasa, Carmen, and Incerti, Sebastien

Abstract

Understanding the fundamental mechanisms involved in the induction of biological damage by ionizing radiation remains a major challenge of todays radiobiology research. The Monte Carlo simulation of physical, physicochemical and chemical processes involved may provide a powerful tool for the simulation of early damage induction. The Geant4-DNA extension of the general purpose Monte Carlo Geant4 simulation toolkit aims to provide the scientific community with an open source access platform for the mechanistic simulation of such early damage. This paper presents the most recent review of the Geant4-DNA extension, as available to Geant4 users since June 2015 (release 10.2 Beta). In particular, the review includes the description of new physical models for the description of electron elastic and inelastic interactions in liquid water, as well as new examples dedicated to the simulation of physicochemical and chemical stages of water radiolysis. Several implementations of geometrical models of biological targets are presented as well, and the list of Geant4-DNA examples is described.

Published
2015

3. Simulating radial dose of ion tracks in liquid water simulated with Geant4-DNA: A comparative study

Author

Incerti, Sebastien, Psaltaki, M., Gillet, P., Barberet, Ph., Bardies, M., Bernal, Mario A., Bordage, M. -C., Breton, V., Davídková, Marie, Delage, E., El Bitar, Ziad Ei, Francis, Ziad, Guatelli, Susanna, Ivanchenko, A., Ivanchenko, V., Karamitros, Mathieu, Lee, S. B., Maigne, Lydia, Meylan, S., Murakami, Kouichi, Nieminen, P., Payno, H., Perrot, Yann, Petrović, Ivan M., Pham, Q. T., Ristić-Fira, Aleksandra, Santin, G., Sasaki, Takashi, Seznec, H., Shin, J. I., Stepan, Vaclav, Tran, Hoang Ngoc, Villagrasa, Carmen, Geant4-DNA Collaboration, Incerti, Sebastien, Psaltaki, M., Gillet, P., Barberet, Ph., Bardies, M., Bernal, Mario A., Bordage, M. -C., Breton, V., Davídková, Marie, Delage, E., El Bitar, Ziad Ei, Francis, Ziad, Guatelli, Susanna, Ivanchenko, A., Ivanchenko, V., Karamitros, Mathieu, Lee, S. B., Maigne, Lydia, Meylan, S., Murakami, Kouichi, Nieminen, P., Payno, H., Perrot, Yann, Petrović, Ivan M., Pham, Q. T., Ristić-Fira, Aleksandra, Santin, G., Sasaki, Takashi, Seznec, H., Shin, J. I., Stepan, Vaclav, Tran, Hoang Ngoc, Villagrasa, Carmen, and Geant4-DNA Collaboration

Abstract

An accurate modeling of radial energy deposition around ion tracks is a key requirement of radiation transport software used for simulations in radiobiology at the sub-cellular scale. The work presented in this paper is part of the on-going benchmarking of the Geant4-DNA physics processes and models, which are available in the Geant4 Monte Carlo simulation toolkit for the low energy transport of particles in liquid water. We present for the first time radial dose distributions of incident ion tracks simulated with Geant4-DNA. Simulation results are compared to other results available in the literature, obtained from analytical calculations, step-by-step Monte Carlo simulations and measurements. They show a reasonable agreement with reference data. (C) 2014 Elsevier B.V. All rights reserved.

Published
2014

4. Simulating radial dose of ion tracks in liquid water simulated with Geant4-DNA: A comparative study

Author

Incerti, Sebastien, Psaltaki, Maria G., Gillet, Pierre, Barberet, Ph., Bardies, M., Bernal, Mario A., Bordage, Marie Claude, Breton, Vincent, Davídková, Marie, Delage, E., El Bitar, Ziad Ei, Francis, Ziad, Guatelli, Susanna, Ivanchenko, A., Ivanchenko, Vladimir, Karamitros, Mathieu, Lee, Sebyeong, Maigne, Lydia, Meylan, Sylvain, Murakami, Kouichi, Nieminen, Petteri H., Payno, H., Perrot, Yann, Petrović, Ivan M., Pham, Q. T., Ristić-Fira, Aleksandra, Santin, Giovanni, Sasaki, Takashi, Seznec, Herve, Shin, Jae-ik, Stepan, Vaclav, Tran, Ngoc Hoang, Villagrasa, Carmen, Geant4-DNA Collaboration, Incerti, Sebastien, Psaltaki, Maria G., Gillet, Pierre, Barberet, Ph., Bardies, M., Bernal, Mario A., Bordage, Marie Claude, Breton, Vincent, Davídková, Marie, Delage, E., El Bitar, Ziad Ei, Francis, Ziad, Guatelli, Susanna, Ivanchenko, A., Ivanchenko, Vladimir, Karamitros, Mathieu, Lee, Sebyeong, Maigne, Lydia, Meylan, Sylvain, Murakami, Kouichi, Nieminen, Petteri H., Payno, H., Perrot, Yann, Petrović, Ivan M., Pham, Q. T., Ristić-Fira, Aleksandra, Santin, Giovanni, Sasaki, Takashi, Seznec, Herve, Shin, Jae-ik, Stepan, Vaclav, Tran, Ngoc Hoang, Villagrasa, Carmen, and Geant4-DNA Collaboration

Abstract

An accurate modeling of radial energy deposition around ion tracks is a key requirement of radiation transport software used for simulations in radiobiology at the sub-cellular scale. The work presented in this paper is part of the on-going benchmarking of the Geant4-DNA physics processes and models, which are available in the Geant4 Monte Carlo simulation toolkit for the low energy transport of particles in liquid water. We present for the first time radial dose distributions of incident ion tracks simulated with Geant4-DNA. Simulation results are compared to other results available in the literature, obtained from analytical calculations, step-by-step Monte Carlo simulations and measurements. They show a reasonable agreement with reference data. (C) 2014 Elsevier B.V. All rights reserved.

Published
2014

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