J. Phys. Chem. 1996, 100, 8595-8606
8595
Monte Carlo Simulation of Range and Energy Deposition by Electrons in Gaseous and Liquid Water Simon M. Pimblott,* Jay A. LaVerne, and Asokendu Mozumder Radiation Laboratory, UniVersity of Notre Dame, Notre Dame, Indiana 46556 ReceiVed: December 8, 1995; In Final Form: February 19, 1996X
A stochastic simulation method employing suitable experimentally based cross sections has been developed for probing the spatial distribution of energy loss and the trajectory of 100 eV to 1 MeV electrons in gaseous and liquid water. Elastic collisions and large-energy-loss inelastic collisions strongly influence the passage of electrons such that the separation between the initial and final (E ) 25 eV) position is considerably smaller than the path length. At all energies, the mean axial and the mean radial penetrations are somewhat similar, however, the former is strongly influenced by inelastic collisions and the latter by elastic collisions. The effect of phase on the density-normalized range is small for energetic electrons, but differences are apparant at the lowest energies,
