Thermally assisted OSL from deep traps in Al 2O 3:C

The present work suggests an alternative experimental method in order to not only measure the signal of the deep traps in Al 2O 3:C without heating the sample to temperatures greater than 500 °C, but also use this signal for high dose level dosimetry purposes as well. This method consists of photo t...

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Bibliographic Details
Published inRadiation measurements Vol. 45; no. 3; pp. 519 - 522
Main Authors Polymeris, G.S., Raptis, S., Afouxenidis, D., Tsirliganis, N.C., Kitis, G.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 2010
Subjects
Al 2O 3:C
Deep traps
Dosimetry
Photo transfer
Photo transfer
Deep traps
Dosimetry
Al 2O 3:C
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Summary:The present work suggests an alternative experimental method in order to not only measure the signal of the deep traps in Al 2O 3:C without heating the sample to temperatures greater than 500 °C, but also use this signal for high dose level dosimetry purposes as well. This method consists of photo transfer OSL measurements performed at elevated temperatures using the blue LEDs (470 nm, FWHM 20 nm) housed at commercial Risø TL/OSL systems, after the sample was previously heated up to 500 °C in order to empty its main TL dosimetric trap. The influence of this procedure on specific features such as glow curve shape and sensitivity of the main TL glow peak was also studied.
ISSN:1350-4487
1879-0925
DOI:10.1016/j.radmeas.2009.12.024