The fractional glow technique as a tool of investigation of tl bleaching efficiency in K-feldspar

• Autorzy: Chruścińska A.
• Języki publikacji: EN

Abstrakty

EN

The fractional glow technique was applied to the investigation of trap occupation in optically bleached K-feldspars separated from sediments. Various bleaching times and two spectra ranges of sunlight simulator were used. Three trap groups exhibit different sensitivities to bleaching. The influence of the spectrum range of the stimulation light on the bleaching efficiency is presented. Results of the fractional glow technique measurements simulations are presented for the case of second order kinetics.

Słowa kluczowe

EN

thermoluminescence; trap spectroscopy; thermoluminescence dating; K-feldspar

• Wydawca: De Gruyter
• Czasopismo: Geochronometria
• Rocznik: 2001
• Tom: Vol. 20
• Strony: 21--30
• Opis fizyczny: Bibliogr. 9 poz., wykr.

Twórcy

autor

Chruścińska A.

• Nicholas Copernicus University, Institute of Physics, TL Dating Laboratory, Grudziądzka 5, 87-100 Toruń, Poland

Bibliografia

• 1. Ahmed A.B. and Gartia R.K., 1985: Trapping levels in KalSi3O8 . Physica Status Solidi (A) 94: 645-651.
• 2. Chen R. and McKeever S.W.S., 1997: Theory of Thermoluminescence and Related Phenomena. Word Scientific, Singapore.
• 3. Chruścińska A., 1994:The fractional thermoluminescence: some aspects concerning the experimental data analysis. Journal of Luminescence 62: 115- 121.
• 4. Chruścińska A., Oczkowski H.L. and Przegiętka K.R.,1996: Trap spectra of annealed quartz. Acta Physica Polonica A 89: 555-568.
• 5. Chruścińska A., Oczkowski H.L and Przegiętka K.R., 2001: The parameters of traps in K-feldspars and the TL bleaching efficiency: Geochronometria, in press.
• 6. Gobrecht H. and Hofmann D., 1966: Spectroscopy of Traps by the Fractional Glow Technique. Journal of Physics and Chemistry of Solids 27: 509-522.
• 7. Kierstead J.A. and Levy P.W., 1991: Validity of repeated initial rise thermoluminescence kinetic parameter determinations. Nuclear Tracks and Radiation Measurements 18: 19-25
• 8. Oczkowski H.L., Przegiêtka K.R., 1998: TL dating of young aeolian deposits from Kępa Kujawska. Radiation Measurements 28: 435-439.
• 9. Tale I.A., 1981: Trap Spectroscopy by the Fractional Glow Technique. Physica Status Solidi (A) 66: 65-75.