Making the invisible visible

• Verfasst von: Friedrich, Johannes [VerfasserIn]
• Verfasst von: Kreutzer, Sebastian [VerfasserIn]
• Verfasst von: Schmidt, Christoph [VerfasserIn]
• Titel: Making the invisible visible
• Titelzusatz: observing the UV-reversal effect in quartz using radiofluorescence
• Verf.angabe: Johannes Friedrich, Sebastian Kreutzer, Christoph Schmidt
• E-Jahr: 2018
• Jahr: 25 July 2018
• Fussnoten: Gesehen am 27.03.2025
• Titel Quelle: Enthalten in: Journal of physics. D, Applied physics
• Ort Quelle: Bristol : IOP Publ., 1968
• Jahr Quelle: 2018
• Band/Heft Quelle: 51(2018), 33, Artikel-ID 335105, Seite ?
• ISSN Quelle: 1361-6463
• DOI: doi:10.1088/1361-6463/aacfd0
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1920732144

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 Therefore, the need of a TL measurement is obsolete.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.