Thumbnail
Access Restriction
Open

Author Pimblott, S. M. ♦ LaVerne, J. A. ♦ Mozumder, A.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CHEMISTRY ♦ PHYSICS ♦ WATER ♦ COLLISIONS ♦ WATER VAPOR ♦ ELECTRONS ♦ TRAJECTORIES ♦ ENERGY LOSSES ♦ DISTRIBUTION ♦ MONTE CARLO METHOD ♦ SIMULATION ♦ STOCHASTIC PROCESSES ♦ ENERGY LEVELS ♦ MATHEMATICAL MODELS
Abstract 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 100eV 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 apparent at the lowest energies, < 2 KeV. The spatial distribution of energy deposition shows a marked dependence on electron energy. The spatial dependence of radial energy deposition and dose distributions in the axial and radial directions have been calculated. 52 refs., 11 figs., 3 tabs.
ISSN 00223654
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-05-16
Publisher Place United States
Journal Journal of Physical Chemistry
Volume Number 100
Issue Number 20


Open content in new tab

   Open content in new tab