نتایج جستجو برای: glow curve
تعداد نتایج: 131090 فیلتر نتایج به سال:
Researchers have done many experiments to improve their dosimetry properties by adding impurities Thermoluminescent (TL) materials. Adding the TL material requires cost, time, and equipment. The purpose of this study was construct Dosimetry (TLD) chips through different thermal processes at temperatures near melting point Lithium Fluoride powder without properties, therefore additional expense ...
In order to understand the details of high-field breakdown in microstructures that are vacuum packaged, a series of experiments are used to determine characteristics of microdischarges. It is found that many of these contradict conventional assumptions based upon large scale discharges. When planar microelectrodes are used, Paschen’s curve is not followed; the anode and cathode current paths ar...
This study analyses the thermally stimulated luminescence or thermoluminescence (TL) glow curve between 300 and 773 K of germanium-doped silica optical fibre. A main glow peak at 530 K with a characteristic spectral emission centred at 400 nm is found. Both features are particularly suitable for dosimetry. Thus, an investigation by the TL technique of some first clinically relevant features of ...
Strontium Tetraborate doped with Lead SrB4O7:Pb powder was prepared by solid state method. The formation of Strontium Tetraborate compound was analyzed by X-ray diffraction (XRD) and Scanning Electron Microscopy (SEM). Thermoluminescence Glow Curve of gamma irradiated sample was investigated in order to use as a thermoluminescent dosimeter. Because of excellent mechanical properties, non-hygros...
Thallium doped calcium fluoride (CaF2:Tl) nanoparticles were produced for the first time by using the hydrothermal method. X-ray diffraction (XRD) and scanning electron microscope (SEM) were utilized to analyze the synthesized material. The particle size of about 45 nm was evaluated using XRD data which was supported by the SEM images. Thermoluminescence glow curve of this nanophosphor exhibits...
In this research, Pure Sodium chloride (NaCl) Nano and micro particles were produced for the first time by using the surfactant in co-precipitation method. X-ray diffraction (XRD) and scanning electron microscope (SEM) were utilized to analyze the shape and size of the synthesized material. The role of CTAB surfactant on morphology of particles was also investigated. The results show that CTAB ...
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...
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