The role of Mg2+‐V‐dipoles: In the thermoluminescence of LiF2:Mg single crystal

H. Opyrchal, B. Macalik, A. Watterich

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The thermoluminescence and radiation or thermally induced changes of the concentration of magnesium dipoles have been studied in LiF:Mg2+ crystal grown in an inert atmosphere. The evolution of the TL spectrum with γ‐radiation dose shows that the glow peaks observed at the beginning of irradiation decrease at high doses whereas new peaks, positioned at higher temperatures, appeare. Moreover, it has been found that the thermally induced recovery of the dopant dipoles, destroyed during the irradiation, strongly depends on the dose applied. The recovery curves obtained for a fixed irradiation dose dose not exhibit thermal annealing steps at temperatures, at which glow peaks occur. Further, the number of the recovered magnesium dipoles is not correlated with the quantity of light emitted during heating the irradiated crystal what is expected in respect to some of the previously proposed models. On the basis of results obtained it is proposed that the decay of the magnesium dipoles is mainly due to the dopant aggregation induced by the γ‐radiation. The role of the magnesium ions in thermoluminescent processes is discussed.

Original languageEnglish
Pages (from-to)291-296
Number of pages6
JournalCrystal Research and Technology
Volume22
Issue number2
DOIs
Publication statusPublished - 1987

Fingerprint

Thermoluminescence
thermoluminescence
Dosimetry
Magnesium
Single crystals
magnesium
dosage
single crystals
dipoles
Irradiation
irradiation
radiation
recovery
Doping (additives)
luminescence
Radiation
Recovery
Crystals
inert atmosphere
crystals

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

The role of Mg2+‐V‐dipoles : In the thermoluminescence of LiF2:Mg single crystal. / Opyrchal, H.; Macalik, B.; Watterich, A.

In: Crystal Research and Technology, Vol. 22, No. 2, 1987, p. 291-296.

Research output: Contribution to journalArticle

@article{fb209ccbad2a47eeba6ec8a82e3e35d3,
title = "The role of Mg2+‐V‐dipoles: In the thermoluminescence of LiF2:Mg single crystal",
abstract = "The thermoluminescence and radiation or thermally induced changes of the concentration of magnesium dipoles have been studied in LiF:Mg2+ crystal grown in an inert atmosphere. The evolution of the TL spectrum with γ‐radiation dose shows that the glow peaks observed at the beginning of irradiation decrease at high doses whereas new peaks, positioned at higher temperatures, appeare. Moreover, it has been found that the thermally induced recovery of the dopant dipoles, destroyed during the irradiation, strongly depends on the dose applied. The recovery curves obtained for a fixed irradiation dose dose not exhibit thermal annealing steps at temperatures, at which glow peaks occur. Further, the number of the recovered magnesium dipoles is not correlated with the quantity of light emitted during heating the irradiated crystal what is expected in respect to some of the previously proposed models. On the basis of results obtained it is proposed that the decay of the magnesium dipoles is mainly due to the dopant aggregation induced by the γ‐radiation. The role of the magnesium ions in thermoluminescent processes is discussed.",
author = "H. Opyrchal and B. Macalik and A. Watterich",
year = "1987",
doi = "10.1002/crat.2170220225",
language = "English",
volume = "22",
pages = "291--296",
journal = "Crystal Research and Technology",
issn = "0232-1300",
publisher = "John Wiley and Sons Inc.",
number = "2",

}

TY - JOUR

T1 - The role of Mg2+‐V‐dipoles

T2 - In the thermoluminescence of LiF2:Mg single crystal

AU - Opyrchal, H.

AU - Macalik, B.

AU - Watterich, A.

PY - 1987

Y1 - 1987

N2 - The thermoluminescence and radiation or thermally induced changes of the concentration of magnesium dipoles have been studied in LiF:Mg2+ crystal grown in an inert atmosphere. The evolution of the TL spectrum with γ‐radiation dose shows that the glow peaks observed at the beginning of irradiation decrease at high doses whereas new peaks, positioned at higher temperatures, appeare. Moreover, it has been found that the thermally induced recovery of the dopant dipoles, destroyed during the irradiation, strongly depends on the dose applied. The recovery curves obtained for a fixed irradiation dose dose not exhibit thermal annealing steps at temperatures, at which glow peaks occur. Further, the number of the recovered magnesium dipoles is not correlated with the quantity of light emitted during heating the irradiated crystal what is expected in respect to some of the previously proposed models. On the basis of results obtained it is proposed that the decay of the magnesium dipoles is mainly due to the dopant aggregation induced by the γ‐radiation. The role of the magnesium ions in thermoluminescent processes is discussed.

AB - The thermoluminescence and radiation or thermally induced changes of the concentration of magnesium dipoles have been studied in LiF:Mg2+ crystal grown in an inert atmosphere. The evolution of the TL spectrum with γ‐radiation dose shows that the glow peaks observed at the beginning of irradiation decrease at high doses whereas new peaks, positioned at higher temperatures, appeare. Moreover, it has been found that the thermally induced recovery of the dopant dipoles, destroyed during the irradiation, strongly depends on the dose applied. The recovery curves obtained for a fixed irradiation dose dose not exhibit thermal annealing steps at temperatures, at which glow peaks occur. Further, the number of the recovered magnesium dipoles is not correlated with the quantity of light emitted during heating the irradiated crystal what is expected in respect to some of the previously proposed models. On the basis of results obtained it is proposed that the decay of the magnesium dipoles is mainly due to the dopant aggregation induced by the γ‐radiation. The role of the magnesium ions in thermoluminescent processes is discussed.

UR - http://www.scopus.com/inward/record.url?scp=84990585672&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84990585672&partnerID=8YFLogxK

U2 - 10.1002/crat.2170220225

DO - 10.1002/crat.2170220225

M3 - Article

AN - SCOPUS:84990585672

VL - 22

SP - 291

EP - 296

JO - Crystal Research and Technology

JF - Crystal Research and Technology

SN - 0232-1300

IS - 2

ER -