Decay of luminescence and dielectric loss in calcite single crystals irradiated by X-rays

Measurements have been taken on the decay of luminescence and dielectric loss of calcite single crystals after X-ray irradiation. These parameters exhibit similar decay behaviour. In the time range 12–60 min, the decay seems to be connected with the depletion of shallow traps in the forbidden energy region and at longer times, it is apparently due to emptying of comparatively deeper traps.