| Autor: |
Woda C; Forschungsstelle Radiometrie der Heidelberger Akademie der Wissenschaften, Germany., Schilles T, Rieser U, Mangini A, Wagner GA |
| Jazyk: |
angličtina |
| Zdroj: |
Radiation protection dosimetry [Radiat Prot Dosimetry] 2002; Vol. 100 (1-4), pp. 261-4. |
| DOI: |
10.1093/oxfordjournals.rpd.a005862 |
| Abstrakt: |
The dose response of the 375 degrees C. 470 nm TL peak in fired quartz is studied by using thermoluminescence emission spectra and monochromatic glow curves. The blue emission displays a significant sensitivity increase for doses in excess of 1000 Gy, subsequent saturation at 16 kGy and a pre-dose effect over the entire dose range. Comparison with the growth of the known electron paramagnetic resonance (EPR) centres and radioluminescence emission spectra indicates that the [AlO4] centre is the recombination site for the blue emission, whereas the electron trap remains unknown. The sensitivity change seems to be linked to the dose-induced reduction of the [GeO4/Li] centre. Possible mechanisms for the observed dose response are discussed. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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