Making the invisible visible: observing the UV-reversal effect in quartz using radiofluorescence
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. H...
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| Main Authors: | , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
25 July 2018
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| In: |
Journal of physics. D, Applied physics
Year: 2018, Volume: 51, Issue: 33, Pages: ? |
| ISSN: | 1361-6463 |
| DOI: | 10.1088/1361-6463/aacfd0 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1088/1361-6463/aacfd0 Verlag, lizenzpflichtig, Volltext: https://dx.doi.org/10.1088/1361-6463/aacfd0 
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| Author Notes: | Johannes Friedrich, Sebastian Kreutzer, Christoph Schmidt |
| Summary: | 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 Therefore, the need of a TL measurement is obsolete.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. |
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| Item Description: | Gesehen am 27.03.2025 |
| Physical Description: | Online Resource |
| ISSN: | 1361-6463 |
| DOI: | 10.1088/1361-6463/aacfd0 |