LAPRAZ , Dominique

The response of thermally stimulated luminescence (TSL) is investigated theoretically. An original dimensionless treatment is proposed, first to highlight the key dimensionless factors rationalizing the competition between the mechanisms at play during the TSL readout, and second to clean up the approach from any particular values of the...

Data concerning thermostimulated luminescence (TL) and fluorescence spectra are given for a scries of ruby monocrystals obtained by Verneuil's method, and containing several values of Cr3+concentration, up to 12000 ppm.

The various possibilities of thermoluminescence and thermostimulated exoelectronic emission in ceramic investigations are presented. Numerous examples are given.

Pure Al2O3 powders have been prepared by thermal decomposition of ammonium alum (NH4Al(SO4)2. 12H2O). The calcinations were performed at different temperatures, and under flowing oxygen or nitrogen or hydrogenated argon. The thermoluminescence of these powders after X ray irradiation at room temperature is studied from room temperature to 780...

International audience

Several alpha-Al2O3 samples were studied in order to determine the mechanism of electron-hole processes of the 430 K (D') thermoluminescence (TL) and thermally stimulated exoelectron emission (TSEE) dosimetric peak. Single crystals prepared in highly reducing conditions were treated in different atmospheres (reducing/oxidizing) and their...