Making the invisible visible: observing the UV-reversal effect in quartz using radiofluorescence

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Serval ID
serval:BIB_DBF0B80D962A
Type
Article: article from journal or magazin.
Collection
Publications
Title
Making the invisible visible: observing the UV-reversal effect in quartz using radiofluorescence
Journal
Journal of Physics D: Applied Physics
Author(s)
Friedrich Johannes, Kreutzer Sebastian, Schmidt Christoph
ISSN
0022-3727
1361-6463
Publication state
Published
Issued date
22/08/2018
Peer-reviewed
Oui
Volume
51
Number
33
Pages
335105
Language
english
Abstract
The pre-dose effect is one of the most well-known phenomena in quartz luminescence. It refers to an increase in dose sensitivity subsequent to radiation pre-exposure and annealing. A theoretical description of this phenomenon exists since the 1970s and is widely used in recent luminescence models. However, also the opposite effect has been described, the less known 'UV-reversal' effect which reduces the luminescence sensitivity due to illuminating the sample with far UV light. Both effects were detected with thermoluminescence (TL) following a small test dose and observing the effect indirectly using the response of the 110 °C peak. We here present a more direct measurement of both phenomena via UV-radiofluorescence (UV-RF), which is the luminescence emitted during irradiation. Therefore, the need of a TL measurement is obsolete. Furthermore, we were able to calculate a time rate of eviction of holes from the luminescence centre and implement this value into existing models to obtain a more comprehensive description of quartz luminescence. Numerical simulations are in good agreement with experimental data.
Keywords
Acoustics and Ultrasonics, Electronic, Optical and Magnetic Materials, Surfaces, Coatings and Films, Condensed Matter Physics
Web of science
Create date
17/10/2020 19:29
Last modification date
23/12/2022 11:17
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