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Influence of in Situ Temperature on the Sensitization of Quartz: a Simulation Study

100%

Koul D. K. , Patil P. G.

Geochronometria

2015

tom Vol. 42, no.1

28--40

The influence of ambient geological and burial temperatures, prevailing in nature, on the charge population of the defect centers and, eventually, the sensitivity of the luminescence emission of quartz was simulated using empirical model. Various permutation and combination of these temperatures were incorporated so as to observe, both, the collective and independent impact of these two temperatures on the charge kinetics. The results of seem to demonstrate the role of the ambient temperature in the sensitization of quartz mineral.

An attempt to estimate firing temperature using OSL pre-dose sensitization of quartz

100%

Koul D. K. , Chougaonkar M. P.

tom Vol. 38, no. 3

217-222

The estimation of firing temperature of ceramics using methods based on pre-dose sensiti-zation of the 110°C TL peak of quartz have yielded incoherent results. Recently the fast component of the CW-OSL of quartz has been observed to have pre-dose characteristics similar to that of the 110°C TL peak. The motivation for this study has been to look into the feasibility of this signal, the OSL counter part of pre-dosed TL emission, for the firing temperature identification. The variation in the sensitization ratio of the TL and OSL emissions with different heating temperatures was also utilized to unveil the firing temperature mark of the specimen.