A new high-resolution parallel beam X-ray powder diffractometer incorporating multilayer Xray optics in the incident and diffracted beams was constructed and used to refine the crystal structures of several three-layer Aurivillius ceramics using the Rietveld method. The intent of this study was to determine the feasibility of parallel beam data in a research environment. These results were comp...

The x-ray scattering from liquid copper, silver, tin, and mercury was measured at temperatures of 1125 °C, 1050 °C, 335 °C, and 28 °C, respectively, from the open surface of horizontal samples using a focusing theta-theta diffractometer, quartz crystal monochromator positioned in the dif­ fracted beam, scintillation detector, and pulse height discriminator. The effect on the measured intensitie...

Three alloys of Al-Mg with and without scandium are cold worked at different percentage and then annealed. The texture behavior of the alloys is studied by X-ray diffraction technique. The X-ray diffraction analysis is done using a PHILIPS PW1830 diffractometer with Cu-Kα radiation. It is found that the addition of scandium in Al-6Mg alloy influences the development of texture. The cube texture...

The improvement of a Balzers Eldigraph KD-G2 gas-phase electron diffractometer, previously operated at the University of Tübingen, is reported. The diffractometer was equipped with a state-ofthe-art telefocus electron gun, and high-energy radiation-sensitive imaging plates were introduced as detector system. A differential vacuum pumping system separating the diffraction chamber from the electr...

Numerical database systems have recently become available online. Their enhanced search capabilities and fast retrieval of data make them a valuable tool in research. In particular, CRYSTDAT which is a search and analysis system for NBS CRYSTAL DATA has proven to be powerful in the identification of crystalline materials. In conjunction with a single-crystal x-ray diffractometer, a qualitative ...

This paper presents an absolute X-ray photon energy measurement method that uses a Bond diffractometer. The proposed system enables the prompt and rapid in situ of energies over wide range. diffractometer reference silicon single-crystal plate highly accurate angle encoder called SelfA. performance is evaluated by repeatedly measuring first excited state potassium-40 nuclide. excitation determi...