Manufacturing polycrystalline pellets of natural quartz for applications in thermoluminescence dosimetry

Thermoluminescence Study of 210C Glow Peak in Synthetic Quartz and their Application in High Gamma Dosimetry

The thermoluminescence (TL) properties of laboratory grown quartz have been studied for its possible high gamma dosimetric applications. The variation of 210 o C glow peak is observed in different annealed samples followed by gamma irradiation near room temperature. The peak was found very sensitive to the pre-thermal treatments. The radiation induced effects in quartz have been studied in deta...

Dauphiné twinning in polycrystalline quartz

A recently developed crystal based continuum model for twinning and phase transformations is successfully applied to Dauphiné twinning and the α (trigonal) ↔ β (hexagonal) phase transformation in quartz. Both finite element and uniform deformation simulations are performed of quartz polycrystals and several experimentally observed phenomena are qualitatively reproduced. Results are given for me...

Thermoluminescence Dosimetry Studies of Industrially Important Minerals

Comparative study of the thermoluminescence properties of natural metamorphic quartz belonging to Turkey and Spain

The aim of this study is to investigate the sensitization of the thermoluminescence (TL) peak of metamorphic quartzes from Adiyaman in Turkey (TMQ) and fromMadrid in Spain (SMQ). Quartz samples of two different origins were β-irradiated between 6.689 Gy and 4816 Gy at room temperature. X-ray diffraction analysis has indicated that both TMQ and SMQ have the same crystal structure. Chemical analy...

Thermoluminescence Dosimetry (TLD) and its Application in Medical Physics

Radiation dosimetry is fundamental in Medical Physics, involving patients and phantom dosimetry. In both cases thennoluminescence dosimetry (TLD) is the most appropriate technique for measuring the absorbed dose. In this paper thennoluminescence phenomenon as well as the use of TLD in radiodiagnosis and radiotherapy for in vivo or in phantom measurements is discussed. Some results of measuremen...