Volume 202, Issue 2 pp. 993-998

Research Article

Investigation of Radiation-Induced Defects in NaBr:Sr²⁺

M. I. Grasa Molina,

M. I. Grasa Molina

Fachbereich Physik, Universität Paderborn, Warburger Straße 100, D-33098 Paderborn, Germany

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Th. Pawlik,

Th. Pawlik

Fachbereich Physik, Universität Paderborn, Warburger Straße 100, D-33098 Paderborn, Germany

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J.-M. Spaeth,

J.-M. Spaeth

Fachbereich Physik, Universität Paderborn, Warburger Straße 100, D-33098 Paderborn, Germany

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M. I. Grasa Molina,

M. I. Grasa Molina

Fachbereich Physik, Universität Paderborn, Warburger Straße 100, D-33098 Paderborn, Germany

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Th. Pawlik,

Th. Pawlik

Fachbereich Physik, Universität Paderborn, Warburger Straße 100, D-33098 Paderborn, Germany

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J.-M. Spaeth,

J.-M. Spaeth

Fachbereich Physik, Universität Paderborn, Warburger Straße 100, D-33098 Paderborn, Germany

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First published: 16 November 2001

https://doi.org/10.1002/1521-3951(199708)202:2<993::AID-PSSB993>3.0.CO;2-T

Citations: 1

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Abstract

An EPR/ENDOR study of two radiation-induced defects in NaBr doped with Sr²⁺ is presented. X-irradiation at room temperature produces a large amount of F centres compared to undoped NaBr and an impurity-related hole centre of Br^—₂-type. An ENDOR investigation of the F centre yielded the superhyperfine interaction constants for the first two shells of neighbours. The Br^—₂-type hole centre has properties very similar to the H^〈100〉_DD centre in KCl:Sr²⁺. In contrast to the centres in KCl, which decay thermally at 255 K, the H_DD centre in NaBr is stable at room temperature.

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Volume202, Issue2

August 1997

Pages 993-998

Investigation of Radiation-Induced Defects in NaBr:Sr²⁺

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Investigation of Radiation-Induced Defects in NaBr:Sr²⁺