| Abstrakt: |
Abstract: Radiation induced conductivity in α Al2O3 crystals is studied during excitation by subnanosecond pulses from an electron accelerator. At least three components are observed in the relaxation of the conduction current. A component of the conduction current which follows the exciting pulse without delay is not observed, as, for example, in NaCl and KCl crystals. This is followed by a subnanosecond decay that does not fit a simple pattern and then, to within the limits of the sensitivity of the apparatus, by at least two other relaxation components for the conduction current in the nanosecond range. It is assumed that the observed components of the conduction current relaxation, including the fastest, are caused by thermal release of carriers from traps and their subsequent redistribution, while the second and third components of the conduction current pulse appear to the associated with electrons. |
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