Electron reactions in EG/H2O glass. Temperature dependence

The decay of x‐ray‐induced $e_t^{-}$ in glycol‐water glass and the reduction of ${\mathrm{G(e}}_t^{-})$ by various scavengers have been studied as functions of the temperature. The decay of $e_t^{-}$ was independent of temperature from 77 to 113 K as expected if the reaction occurs primarily by electron tunneling. The reduction of ${\mathrm{G(e}}_t^{-})$ , however, decreased significantly with increasing temperature in the same region, the temperature dependence being larger for less efficient scavengers. The results are qualitatively accounted for by the assumption that a significant fraction of the electrons react prior to formation of stable traps, viz. from shallow, transient traps.