نتایج جستجو برای: high energy x ray
تعداد نتایج: 3059727 فیلتر نتایج به سال:
A novel wavelength dispersive soft X-ray emission spectrometer (WD-SXES) has been developed. It covers nominally the X-ray energy range between 50 and 210 eV [1, 2]. One of the characteristic features of the WD-SXES is parallel detection of the signal so that it can be used like a conventional energy dispersive spectrometer. One other feature is a high energy resolution, which is about 0.2 eV. ...
For thousands of years physicians have attempted to "see" disease states in order to better understand and treat them. Initially, only five physical senses were available to guide the treatment process. Available energy sources included visible light and mechanical forces for inspection and pal-pation. More recently, new energy sources have been developed to better "see" disease. These energy s...
To prevent illegal trade of weapons, X-ray scanning systems are used for non-intrusive inspection of import containers and cargoes at every seaport and airport. Conventional X-ray scanning system for cargoes is based mainly on X-rays of several MeV energy generated by an electron Linac. For high quality X-ray imaging, an X-ray source with good directionality, narrow width of energy spectrum and...
Nano-crystalline particles of CeO2 have been synthesized by a low temperature chemical precipitation method. The precursor materials used in this research were Ce(NO3)3.6H2O, NaOH and diethylene glycol as surfactant. X-ray powder diffraction results showed that face centered cubic CeO2 nanoparticles with crystalline size in nanometer scale were formed. Scanning electron microscopy measurement s...
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