RECENT DEVELOPMENTS USING THE PARIS-EDINBURGH CELL FOR NEUTRON DIFFRACTION AT HIGH PRESSURE AND HIGH TEMPERATURE AND SOME APPLICATIONS

Abstract

We describe a recently developed technique for high pressure high temperature neutron scattering up to 7 GPa and 2000 K with a novel radiographic method to determine the temperature under pressure. We demonstrate the technique by some recent results on hydrous minerals (namely brucite and ice VH) and on spinel MgAl₂O₄, where neutrons still have an unchallenged advantage over X-rays. Future scientific opportunities are outlined.

Keywords:

• Powder neutron diffraction
• High pressure
• High temperature
• Neutron radiography