In order to continue our investigation into the possible utility of induced thermoluminescence as a chronometer for volcanic activity we have measured properties twenty-eight samples collected from almost 3 km long Blue Dragon flow at Craters Moon National Monument and Preserve, Idaho. The are consistent with previous conclusions that major mineral causing luminescence is feldspar variation in ...

Abstract. Combined radioluminescence, afterglow and thermoluminescence experiments on single-crystal samples of co-doped CsI:Tl,Sm suggest that deeper samarium electron traps scavenge electrons from shallower thallium traps and that electrons subsequently released by samarium recombine non-radiatively with holes trapped as VKA(Tl ) centers, thus providing a mechanism for suppression of trapped-...

Detector packages were exposed on the European Retrievable Carrier (EURECA) as part of the Biostack experiment inside the Exobiology and Radiation Assembly (ERA) and at several locations around EURECA. The packages consist of different plastic nuclear track detectors, nuclear emulsions and thermoluminescence dosimeters (TLDs). Evaluation of these detectors yields data on absorbed dose and parti...

zno and zno:mn nanocrystals synthesized via reverse micelle method. the size, band gap, urbach energy, optical constants and penetration depth of nanocrystals were calculated by uv-vis spectroscopy data. the surface morphology was studied with the use of scanning electron microscope (sem). moreover the samples exposed to gama ray source of 60co and their thermoluminescence properties were also ...

Thermoluminescence (TL) and optically stimulated luminescence (OSL) techniques are known as a research tools for the study of phosphor materials and for their applications in radiation dosimetry in particular [1]. Although TL technique is known since several decades, OSL is relatively newer technique. The TL or OSL emission from an irradiated sample arises upon stimulation with heat or light re...

In the field of thermoluminescence dosimetry the daily analysis of multi-peak glow curves includes computerized curve-fitting methods, the so-called deconvolutions. These are in need of restricting the kinetic parameters E and s in order to obtain physically relevant results. There have been suggested various methods for the determination of these kinetic parameters based on a theory treating s...

The effect of sodium chloride on the photosynthetic electron transport chain was investigated in the freshwater green alga Chlorella vulgaris. It was found that the rate of oxygen evolution under steady state and flash light conditions diminished by increasing salt concentrations. Salt treatment of cells also decreased the fluorescence and delayed luminescence yields. However, the fluorescence ...