Collimator for inelastic x-ray scattering experiments at high temperature and pressure conditions

Abstract

A two-slits collimator designed for inelastic X-ray scattering (IXS) experiments using the Paris–Edinburgh large volume press is presented here. This collimator allows for in situ collection of IXS data of liquid or crystalline samples simultaneously at high pressure and temperature. A complete rejection of the parasitic signal coming from the complex sample environment, needed in these experiments, has been achieved. IXS spectra of amorphous and liquid phosphorus under high pressure and temperature are presented to illustrate the potential of this device.

Keywords:

• High pressure
• Inelastic X-ray scattering
• Phosphorus
• High temperature
• Vibrational dynamics

Acknowledgements

The authors are very grateful to C. Henriquet (ID16, ESRF) for invaluable technical assistance. The inelastic X-ray scattering experiment was undertaken during beamtime allocated to proposal HS-1742 at beamline ID16 of the European Synchrotron Radiation Facility.

Additional information

Notes on contributors

S. Falconi

Present Address: University of Edinburgh, School of Physics and Centre for Science at Extreme Conditions, Mayfield Road, Edinburgh, EH9 3JZ, UK. Email: [email protected].