Filling of Traps with Electrons in Insulators Subjected to Intense Electron Irradiation
نویسنده
چکیده
The efficiency of nonequilibrium electron trapping by capture centers in alkali halide crystals, quartz, and polymethyl-methacrylate exposed to an intense electron beam with a beam current density of about 20 A/cm 2 is studied. The trapped charge is estimated from the amount of irradiation-induced electrification of high-resistivity materials. It is shown that traps having captured thermalized electrons become depleted via impact ionization due to the primary electrons of the beam and secondary electrons.
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