High-temperature thermoluminescence of anion-deficient alumina and possibilities of its application in high-dose dosimetry / Surdo A. I.,Milman I. I.,Abashev R. M.,Vlasov M. I. // TECHNICAL PHYSICS LETTERS. - 2014. - V. 40, l. 12. - P. 1048-1051.

ISSN/EISSN:

1063-7850 / 1090-6533

Type:

Article

Abstract:

Results of studies of the thermoluminescence (TL) of anion-deficient alumina (alpha-Al2O3 - delta) 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 alpha-Al2O3 - delta 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) a parts per thousand yen 6 x 10(6) 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 10(4) to 6 x 10(6) Gy at P (p) = 2.6 x 10(11) Gy/s.

Author keywords:

SINGLE-CRYSTALS; LUMINESCENCE; IRRADIATION

DOI:

10.1134/S106378501412013X

Web of Science ID:

ISI:000347699400004

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	DEC
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
EISSN	1090-6533
Keywords-Plus	SINGLE-CRYSTALS; LUMINESCENCE; IRRADIATION
Research-Areas	Physics
Web-of-Science-Categories	Physics, Applied
Author-Email	surdo@ecko.uran.ru
ResearcherID-Numbers	Vlasov, Maxim/M-1739-2016
Funding-Acknowledgement	Russian Foundation for Basic Research {[}14-02-31522]; Presidium of the Ural Branch of the Russian Academy of Sciences {[}12-U-2-1032]
Funding-Text	This work was supported in part by the Russian Foundation for Basic Research (project no. 14-02-31522) and the Presidium of the Ural Branch of the Russian Academy of Sciences (project no. 12-U-2-1032).
Number-of-Cited-References	12
Usage-Count-Since-2013	4
Journal-ISO	Tech. Phys. Lett.
Doc-Delivery-Number	AY6TW