Development of a new Geant4-DNA electron elastic scattering model for liquid-phase water using the ELSEPA code

W. G. Shin, M. C. Bordage, D. Emfietzoglou, I. Kyriakou, D. Sakata, C. H. Min, S. B. Lee, S. Guatelli, S. Incerti

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

This paper presents the calculation of new elastic scattering cross sections for the simulation of electron interactions in liquid water. The calculations are based on the "ELastic Scattering of Electrons and Positrons by neutral Atoms" code, which adopts a Dirac partial wave analysis. A Muffin-tin potential was used in order to account for the liquid-phase of water, and the optical parameters of the correlation-polarization and the inelastic absorption potentials were optimized against vapour-phase water data. The differential and total elastic scattering cross sections calculated in the present work show a global agreement with the experimental data. The impact of these elastic scattering cross sections on the transport of electrons in liquid water was evaluated by track-structure simulations of range, dose-point-kernel, microdosimetric spectra, and ionization clustering using the Geant4-DNA simulation toolkit. The results are compared against those obtained with the elastic scattering models already available in Geant4-DNA and are discussed.

Original languageEnglish
Article number224901
JournalJournal of Applied Physics
Volume124
Issue number22
DOIs
Publication statusPublished - 2018 Dec 14

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elastic scattering
electron scattering
liquid phases
deoxyribonucleic acid
scattering cross sections
water
simulation
neutral atoms
liquids
positrons
tin
electrons
vapor phases
ionization
dosage
polarization

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Shin, W. G. ; Bordage, M. C. ; Emfietzoglou, D. ; Kyriakou, I. ; Sakata, D. ; Min, C. H. ; Lee, S. B. ; Guatelli, S. ; Incerti, S. / Development of a new Geant4-DNA electron elastic scattering model for liquid-phase water using the ELSEPA code. In: Journal of Applied Physics. 2018 ; Vol. 124, No. 22.
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abstract = "This paper presents the calculation of new elastic scattering cross sections for the simulation of electron interactions in liquid water. The calculations are based on the {"}ELastic Scattering of Electrons and Positrons by neutral Atoms{"} code, which adopts a Dirac partial wave analysis. A Muffin-tin potential was used in order to account for the liquid-phase of water, and the optical parameters of the correlation-polarization and the inelastic absorption potentials were optimized against vapour-phase water data. The differential and total elastic scattering cross sections calculated in the present work show a global agreement with the experimental data. The impact of these elastic scattering cross sections on the transport of electrons in liquid water was evaluated by track-structure simulations of range, dose-point-kernel, microdosimetric spectra, and ionization clustering using the Geant4-DNA simulation toolkit. The results are compared against those obtained with the elastic scattering models already available in Geant4-DNA and are discussed.",
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Shin, WG, Bordage, MC, Emfietzoglou, D, Kyriakou, I, Sakata, D, Min, CH, Lee, SB, Guatelli, S & Incerti, S 2018, 'Development of a new Geant4-DNA electron elastic scattering model for liquid-phase water using the ELSEPA code', Journal of Applied Physics, vol. 124, no. 22, 224901. https://doi.org/10.1063/1.5047751

Development of a new Geant4-DNA electron elastic scattering model for liquid-phase water using the ELSEPA code. / Shin, W. G.; Bordage, M. C.; Emfietzoglou, D.; Kyriakou, I.; Sakata, D.; Min, C. H.; Lee, S. B.; Guatelli, S.; Incerti, S.

In: Journal of Applied Physics, Vol. 124, No. 22, 224901, 14.12.2018.

Research output: Contribution to journalArticle

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AU - Shin, W. G.

AU - Bordage, M. C.

AU - Emfietzoglou, D.

AU - Kyriakou, I.

AU - Sakata, D.

AU - Min, C. H.

AU - Lee, S. B.

AU - Guatelli, S.

AU - Incerti, S.

PY - 2018/12/14

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N2 - This paper presents the calculation of new elastic scattering cross sections for the simulation of electron interactions in liquid water. The calculations are based on the "ELastic Scattering of Electrons and Positrons by neutral Atoms" code, which adopts a Dirac partial wave analysis. A Muffin-tin potential was used in order to account for the liquid-phase of water, and the optical parameters of the correlation-polarization and the inelastic absorption potentials were optimized against vapour-phase water data. The differential and total elastic scattering cross sections calculated in the present work show a global agreement with the experimental data. The impact of these elastic scattering cross sections on the transport of electrons in liquid water was evaluated by track-structure simulations of range, dose-point-kernel, microdosimetric spectra, and ionization clustering using the Geant4-DNA simulation toolkit. The results are compared against those obtained with the elastic scattering models already available in Geant4-DNA and are discussed.

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