Luminescent and dosimetric properties of ultrafine magnesium oxide ceramics after high dose irradiation / Nikiforov S. V.,Kortov V. S.,Petrov M. O. // RADIATION MEASUREMENTS. - 2016. - V. 90, l. SI. - P. 252-256.

ISSN/EISSN:

1350-4487 / нет данных

Type:

Article; Proceedings Paper

Abstract:

The luminescent and dosimetric properties of ultrafine MgO ceramics synthesized in strongly reducing conditions at T = 1100-1400 degrees C are investigated. The growth of photo- and cathodoluminescence output at 2.0-3.5 eV (400-600 nm) is found. It is due to an increase in concentration of single oxygen vacancies and their aggregates. It was established that thermal treatment leads to TL intensity growth after high dose irradiation of the samples by a pulsed electron beam (130 keV). The tunneling mechanism of charge carriers' recombination occurs after this treatment as well. The presence of tunneling recombination is proved by the analysis of the shape and temperature dependence of TL isothermal decay curves. The possibility of using synthesized ceramics for high dose TL dosimetry of ionizing radiations is shown. (C) 2015 Elsevier Ltd. All rights reserved.

Author keywords:

Magnesium oxide; Oxygen vacancies; Tunneling recombination; Pulse electron beam; High-dose dosimetry SINGLE-CRYSTALS; MGO; CENTERS; RADIATION; THERMOLUMINESCENCE; PHOTOLUMINESCENCE; GAMMA

DOI:

10.1016/j.radmeas.2015.12.018

Web of Science ID:

ISI:000378470500056

Соавторы в МНС:

Другие поля

Поле	Значение
Month	JUL
Note	9th International Conference on Luminescent Detectors and Transformers of Ionizing Radiation (LUMDETR), Tartu, ESTONIA, SEP 20-25, 2015
Organization	Univ Tartu, Inst Phys
Publisher	PERGAMON-ELSEVIER SCIENCE LTD
Address	THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
Language	English
Keywords-Plus	SINGLE-CRYSTALS; MGO; CENTERS; RADIATION; THERMOLUMINESCENCE; PHOTOLUMINESCENCE; GAMMA
Research-Areas	Nuclear Science \& Technology
Web-of-Science-Categories	Nuclear Science \& Technology
Author-Email	s.v.nikiforov@urfu.ru
ResearcherID-Numbers	Nikiforov, Sergey/D-6874-2017
ORCID-Numbers	Nikiforov, Sergey/0000-0001-7797-8267
Number-of-Cited-References	25
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	3
Journal-ISO	Radiat. Meas.
Doc-Delivery-Number	DP4MR