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Radiation-Induced Degradation of LiF:W-Based Scintillators

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Abstract

We have studied the laws of, and reasons for, changes in the spectral and kinetic characteristics of cathodoluminescence (CL) of LiF:W scintillators irradiated by nanosecond electron pulses. It is established that the observed CL response distortions are related to the transformation of pre-irradiation defects and the accumulation of new color centers. Optimum conditions of operation of the LiF:W scintillators have been determined: preliminary exposure to a 103- to 104-Gy dose leads to a 1.5- to 2-fold increase in the CL intensity (“small-dose” effect).

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Authors and Affiliations

  1. Tomsk Polytechnic University, 634050, Tomsk, Russia

    G. Ge, V. I. Korepanov & P. V. Petikar’

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  1. G. Ge
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  2. V. I. Korepanov
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  3. P. V. Petikar’
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Corresponding author

Correspondence to V. I. Korepanov.

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The authors declare that they have no conflict of interest.

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Translated by P. Pozdeev

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Ge, G., Korepanov, V.I. & Petikar’, P.V. Radiation-Induced Degradation of LiF:W-Based Scintillators. Tech. Phys. Lett. 45, 714–717 (2019). https://doi.org/10.1134/S1063785019070216

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  • DOI: https://doi.org/10.1134/S1063785019070216

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