Publikationsdatum:
2014-12-05
Beschreibung:
Publication date: Available online 4 December 2014 Source: Radiation Measurements Author(s): Niyazi Meriç , Ülkü Rabia Yüce , Eren Şahiner , Aristis Damianidis , George S. Polymeris The present study reports on the results of dose response and fading for the case of blue stimulated OSL signals from tooth enamel samples. These samples have been previously subjected to two different de-proteinization procedures, after applying hydrazine and sodium hydroxide. The OSL signal, when quantified based on the conventional way of OSL analysis, namely the use of the initial 5 seconds of the signal minus the intensity of the last 5 seconds as a background signal, yields bad signal to noise ratio as well as instability. The application of the de-convolution procedure including two components, one of general order kinetics and one of tunneling recombination results to a fast OSL component with enhanced signal to noise ratio, isolating thus the fading component and yielding a linear dose response throughout the entire dose range of the present study. Finally, the physical meaningfulness of the fitting parameters for the tunneling component, especially the dimensionless parameter representing the normalized donor–acceptor density ρ’ is also discussed.
Print ISSN:
1350-4487
Digitale ISSN:
1879-0925
Thema:
Elektrotechnik, Elektronik, Nachrichtentechnik
,
Physik
