A numerical model of initial recombination for high-LET irradiation: Application to liquid-filled ionization chambers

作者：Aguiar P; Pardo Montero J^*

来源：Radiation Physics and Chemistry, 2016, 119: 173-179.

DOI：10.1016/j.radphyschem.2015.10.015

• Initial recombination
• Non-polar liquids
• Linear.energy transfer
• Liquid-filled ionization chamber
• Hadrontherapy

In this paper we present a numerical model of initial recombination in media irradiated with high linear energy transfer (LET) ions, which relies on an amorphous track model of ionization of high LET particles, and diffusion, drift and recombination of ionized charge carriers. The model has fundamental applications for the study of recombination in non-polar liquids, as well as practical ones, like in modelling hadrontherapy dosimetry with ionization chambers. We have used it to study the response of liquid-filled ionization chambers to hadrontherapy beams: dependence of initial recombination on ion species, energy and applied external electric field.

• 出版日期2016-2