Numerical Calculation of the Radial Distribution of Dose Around the Path of a Heavy Ion

Abstract

Abstract The radial dose distribution around the path of a heavy ion has been calculated by numerical integration accounting for the ejection angles of secondary electrons on the basis of classical collision dynamics and the range-energy relationship of a logarithmic polynomial. This results in a single expression for the radial dose valid for all ion energies and in better agreement with the experimental data in the radial distance between 0.1 nm and 10 nm and penumbra radius compared with those calculated using a linear or power-law relationship in the electron range-energy formula.