Study of physico-chemical processes in yttrium-aluminium garnet under gamma-rays irradiation

V. Gromov; L. Karaseva; E. Saunin

doi:10.1007/bf02516978

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Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 30: Issue 2

Study of physico-chemical processes in yttrium-aluminium garnet under gamma-rays irradiation

Authors:

V. Gromov

V. Gromov Academy of Sciences of the USSR Institute of Physical Chemistry Moscow (USSR)

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L. Karaseva

L. Karaseva Academy of Sciences of the USSR Institute of Physical Chemistry Moscow (USSR)

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E. Saunin

E. Saunin Academy of Sciences of the USSR Institute of Physical Chemistry Moscow (USSR)

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Pages:: 441–450

Online Publication Date:: 09 Jan 2007

Publication Date:: 01 Sep 1976

Article Category:: Research Article

DOI:: https://doi.org/10.1007/bf02516978

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Abstract

Ionizing radiation is shown not to create any additional lattice defects in yttriumaluminium garnet (YAG) due to their high radiation stability. However, it generates different kinds of electron-hole centres that are stabilized on structural imperfections. In the temperature range 77–300 K three kinds of trapping centres in YAG irradiated by γ-rays have been identified by means of ESR and thermoluminescence technique, namely an electron centre of the first type with g=1.996, stable within the temperature range 77–150 K, a hole centre of the second type (g=2.018) existing up to 250 K and a hole centre of the third type (g=2.016) stable at 300 K. Localisation of these centres in the garnet lattice is discussed and their participation in the luminescence processes considered. The influence of the crystallochemical nature of doped ions (Nd, Ce, Cr) on the stabilization of each of these electron-hole centres has also been studied.

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Journal of Radioanalytical and Nuclear Chemistry

Print ISSN:: 0236-5731

Online ISSN:: 1588-2780

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Journal of Radionalytical and Nuclear Chemistry
Language	English
Size	A4
Year of Foundation	1968
Volumes per Year	1
Issues per Year	12
Founder	Akadémiai Kiadó
Founder's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher	Akadémiai Kiadó Springer Nature Switzerland AG
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible Publisher	Chief Executive Officer, Akadémiai Kiadó
ISSN	0236-5731 (Print)
ISSN	1588-2780 (Online)