stoichiometric tetragonal bal-xsrxtio3 (x = 0.23) nanopowders were prepared by stearic acid gel(sag) method using barium stearate, strontium stearate, tetrabutyl titanate as ba, sr, ti sourcesand stearic acid as complexing reagent. thermal analysis including differential thermogravimetric(dtg) and tg, fourier transform infrared spectrometry (ftir), x-ray diffraction (xrd) andtransmission electr...

The problem of determining the arrangements of atoms in crystals directly from X-ray diffraction data has engaged the attention of crystallographers for some time, and a number of approaches to this general problem have been presented. We have been especially interested in the approach which makes use of imageseeking functions in solving the Patterson synthesis,' which, in turn, is based entire...

cadmium sulfide nanoparticles were grown using wet chemical method by dissolving the reactants ofcadmium acetate and sodium sulfide in the presence of thioglycerol (tg) as capping agent in ethanolsolvent. different nanoparticle sizes and size distribution were obtained through varying the molaritiesof thioglycerol. at higher tg concentration, synthesis provides a nearly monodisperse nanoparticl...

The paper invites the reader to recall the 100 years long history of X-rays diffraction discovery, advancement and achievements with great impact on our daily life. Let us pay a tribute to the founders of X-ray diffraction and emphasize the importance of their work for our modern understanding of matter. Special honor has to be given to Max von Laue, who discovered in 1912 that X-rays are elect...

In this study, a feasible green method for the synthesis of copper oxide nanocrystalline is described by using sour cherry juice which has a significant effect on crystalline size, and morphology. The benefits of the green method, not only nanometer scale are formed but also low-cost method are obtained in a normal atmosphere which it has been used (CH3COO)2Cu.H2O individually as Cu sources. Al...

In this study, a feasible green method for the synthesis of copper oxide nanocrystalline is described by using sour cherry juice which has a significant effect on crystalline size, and morphology. The benefits of the green method, not only nanometer scale are formed but also low-cost method are obtained in a normal atmosphere which it has been used (CH3COO)2Cu.H2O individually as Cu sources. Al...

X-ray Talbot interferometry (XTI) is described as a novel phase-sensitive X-ray imaging method. XTI uses two transmission gratings, and therefore in principle it functions with cone-beam X-rays of a broad energy band width, allowing its instrumentation with a compact X-ray source. Because an amplitude transmission grating is needed, X-ray lithography and electrochemical gold plating were employ...

Background: Recently, it has been indicated that X-ray coherent scatter from biological tissues can be used to access signature of tissue. Some scientists are interested in studying this effect to get early detection of breast cancer. Since experimental methods for optimization are time consuming and expensive, some scientists suggest using simulation. Monte Carlo (MC) codes are the best...

The XRT technique is a further special X-ray microdiffraction method where local X-ray interferences are produced by directing an X-ray or synchrotron beam from an external source with default monochromatic radiation of high intensity and a small diameter (e.g. application of capillary optics) on a crystalline region of a sample. Thereby for each diffracting net plane set a cone can be indicate...