Laboratory set-up for X-ray diffraction at high pressures

Abstract

We describe here a simple set-up for X-ray diffraction under high pressure using a diamond anvil cell employing a sealed tube. The set-up works in angular dispersive geometry and is built using rather common components that are available in a research laboratory. We show that using this set-up one can routinely acquire good-quality data for the determination of structural properties under pressure and the equations of state. Technical details are presented along with examples of experimental results for sodium chloride and LiV₂O₄.

Keywords:

• X-ray diffraction
• laboratory set-up
• diamond anvil cell
• high pressure

Acknowledgements

The authors are grateful to J.C. Chervin for help with LiV₂O₄ experiments and to Experimental Division from Soleil Synchrotron (Saint-Aubin, France) for providing a calibrated diode, AXUV 100 GX.