Absolute Scattering Probabilities for Subexcitation Electrons in Condensed H₂ O

Absolute elastic and inelastic collision probabilities per unit length for subexcitation electrons scattering in condensed water were determined by analysis of electron energy loss and transmission data for electron energies between the vacuum level (zero incident kinetic energy) and 3.2 eV. Highly disordered solid films were deposited on a metal substrate with thickness varying between 1 and 50 layers. Analysis by an N-channel model of hot electron transport provides values of 0.017 and 0.068 per layer for the elastic and total inelastic collision probabilities, respectively.