Proton-impact ionization cross sections for nanodosimetric track structure simulations

Authors

Marion Bug, University of WollongongFollow
E Gargioni, University Atsklinikum Hamburg-Eppendorf
Woon Yong Baek, Physikalisch-Technische Bundesanstalt (PTB)
Gerhard Hilgers, Physikalisch-Technische Bundesanstalt (PTB)
Heidi Nettelbeck, Physikalisch-Technische Bundesanstalt (PTB)Follow
Anatoly Rosenfeld, University of WollongongFollow
Hans Rabus, Physikalisch-Technische Bundesanstalt (PBT)

RIS ID

84814

Publication Details

Bug, M. U., Gargioni, E., Baek, W., Hilgers, G., Nettelbeck, H., Rozenfeld, A. & Rabus, H. (2014). Proton-impact ionization cross sections for nanodosimetric track structure simulations. Radiation Protection Dosimetry, 161 (1-4), 474-477.

Abstract

Monte Carlo simulations of the particle track structure require accurate ion- and electron-impact cross-section data of the medium. These data are scarce and often inconsistent when measured by different groups. In this work, literature data on ionisation cross sections (CSs) of nitrogen and propane for protons with energies 0.1–10 MeV are reviewed and implemented in the code PTra. Methane data were used to obtain proton-impact CSs of propane due to their absence in the literature. PTra is benchmarked by comparing simulated particle-track parameters to experimental results, measured with an ion-counting nanodosemeter.