title: Monte Carlo calculations of initial energies of electrons in water irradiated by photons with energies up to 1GeV.
abstract: Previous calculations of the initial energies of electrons produced in water irradiated by photons are extended to 1 GeV by including pair and triplet production. Calculations were performed with the Monte Carlo computer code PHOEL-3, which replaces the earlier code, PHOEL-2. Tables of initial electron energies are presented for single interactions of monoenergetic photons at a number of energies from 10 keV to 1 GeV. These tables can be used to compute kerma in water irradiated by photons with arbitrary energy spectra to 1 GeV. In addition, separate tables of Compton-and pair-electron spectra are given over this energy range. The code PHOEL-3 is available from the Radiation Shielding Information Center, Oak Ridge National Laboratory, Oak Ridge, TN 37830.
mesh_terms: D003201:Computers; D004583:Electrons; D009010:Monte Carlo Method; D014867:Water / Q000528:radiation effects*
chemical_list: D014867:Water