The influence of heating on the spectral characteristics of pure alkali halide NaCl crystals |
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| Authors: | V. I. Kochubeĭ Yu. G. Konyukhova K. E. Gyunsburg N. P. Zvezdova |
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| Affiliation: | 1.Research Institute of Mechanics and Physics,Saratov State University,Saratov,Russia |
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| Abstract: | The influence of high-temperature heating on the spectral characteristics of pure natural NaCl crystals is studied. It is shown that defects changing spectral characteristics of crystals are formed in them when heated. Temperature dependences of the luminescence intensity growth for these defects are described by the hyperbolic function. The action of X-rays on heated crystals results in the formation of new defects luminescent in regions of 435 and 570–585 nm. The efficiency of formation of these defects is obtained as a function of the temperature of heat pretreatment. Regularities in variations of the location and the intensity of luminescence of the defects obtained under the action of ultraviolet radiation and on long storage are determined. |
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