In-situ Measurement Under High-Temperature By Lab X-ray

A high-temperature in situ cell with a large solid angle for fluorescence X-ray absorption fine structure measurement.

We present the design and performance of a high-temperature in situ cell with a large solid angle for fluorescence X-ray absorption fine structure (XAFS) spectra. The cell has a large fluorescence XAFS window (116 mm(ϕ)) near the sample in the cell, realizing a large half-cone angle of 56°. We use a small heater (25 × 35 mm(2)) to heat the sample locally to 873 K. We measured a Pt-SnO2 thin lay...

Study of Two Phase Fluid Flow in Water Wet Reservoir Rocks by Using X-Ray In situ Saturation Monitoring

Displacement of oil and water in porous media of reservoir rocks is described by relative                      permeability curves, which are important input data for reservoir performance simulation and drive mechanism studies. Many core studies, such as multiphase relative permeability, capillary pressure and saturation exponent determination, depend on the volume fractions of multiphase flui...

A Newly Developed High-temperature Chamber for in Situ X-ray Diffraction: Setup and Calibration Procedures

In Situ Thin Film Crystallization Studies Using High Temperature Grazing Incidence X-ray Diffraction (htgixrd)

We describe the experimental procedure and use of high-temperature X-ray diffraction techniques combined with grazing-incidence optics for in situ crystallization studies on several polycrystalline thin films; this technique is referred to as High-Temperature Grazing Incidence X-Ray Diffraction or (HTGIXRD). Temperature calibration techniques, sample positioning issues, and limitations of this ...

High-resolution X-ray imaging for lab-based materials research

The extension of limits of X-ray imaging techniques – in terms of spatial and temporal resolution as well as of material contrast – in the energy range from 5 to 70 keV has long exclusively taken place at third generation synchrotron beamlines. Yet, by using the latest generation of lab-sources together with novel X-ray detectors, results from microas well as sub-micrometer imaging are obtained...