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High-temperature thermoluminescence of anion-deficient alumina and possibilities of its application in high-dose dosimetry

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Abstract

Results of studies of the thermoluminescence (TL) of anion-deficient alumina (α-Al2O3 − δ) single crystals and based on them TLD-500 detectors exposed to pulsed X-ray and electron radiation in a wide range of doses D, pulsed dose rates P p , and temperatures are described. The TL responses of α-Al2O3 − δ for continuous and pulsed X-ray irradiation at D = 0.05–150 Gy are compared. Unlike continuous irradiation, in the case of pulsed irradiation at P p ≥ 6 × 106 Gy/s, a linear increase in the TL response as a function of D is registered in the main and “chromium” peaks at 450 and 580 K, respectively, with a decrease in the slope of the dose dependence at D > 2 Gy for the peak at 450 K. It is found that high-dose irradiation (>60 Gy) leads to the formation of a new TL peak at 830 K and the preferential redistribution of the stored light sums into this peak. The dose dependence for the TL peak at 830 K is studied. It is established that it is linear in a super-high dose range of 104 to 6 × 106 Gy at P p = 2.6 × 1011 Gy/s.

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Authors and Affiliations

  1. Institute of Industrial Ecology, Ural Branch, Russian Academy of Sciences, Ekaterinburg, Russia

    A. I. Surdo, R. M. Abashev & M. I. Vlasov

  2. Ural Federal University, Ekaterinburg, Russia

    A. I. Surdo & I. I. Milman

Authors
  1. A. I. Surdo
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  2. I. I. Milman
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  3. R. M. Abashev
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  4. M. I. Vlasov
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Correspondence to A. I. Surdo.

Additional information

Original Russian Text © A.I. Surdo, I.I. Milman, R.M. Abashev, M.I. Vlasov, 2014, published in Pis’ma v Zhurnal Tekhnicheskoi Fiziki, 2014, Vol. 40, No. 23, pp. 22–30.

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Surdo, A.I., Milman, I.I., Abashev, R.M. et al. High-temperature thermoluminescence of anion-deficient alumina and possibilities of its application in high-dose dosimetry. Tech. Phys. Lett. 40, 1048–1051 (2014). https://doi.org/10.1134/S106378501412013X

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  • DOI: https://doi.org/10.1134/S106378501412013X

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