The differential spectrum of energy loss events produced in liquid water by electrons has been calculated using a differential cross-section incorporating exchange and binding. The average energy loss in a single event is found to vary from about 28 to about 68 eV for 100 eV for 100 eV to 1 MeV electrons, respectively. All energy loss events above a certain level (set either to 1 or to 5 keV) are assumed to produce branch tracks, which are further degraded using a Monte Carlo technique. The total track averaged energy loss per event for a 1 MeV electron is found to be about 57 eV. © 1988.
