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Full text (ua) Study of influence of radiation defects on optical and luminescence properties of CaF2 crystals
V. T. Maslyuk, I. G. Megela, T. O. Viyeru-Vasilitsa*, I. Yu. RomanAbstract: Influence of electron irradiation with energy of 10 MeV at room temperature to the optical and luminescent properties of CaF2 crystals has been studied. The kinetics of the long-term phosphorescence and thermoluminescence on irradiation intensity and dose was carried out. In irradiated samples, the additional band of the optical absorption was observed which is proportional to the irradiation dose and annealed at 175 °C. Concentration and speed of introduction of absorbing centers in the irradiated crystals has been evaluated.
Keywords: radiation defects, deep levels, internal stress, single crystals of germanium.
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