High pressure neutron diffraction to beyond 20 GPa and below 1.8 K using Paris-Edinburgh load frames
Abstract
We describe a method for collecting neutron diffraction patterns simultaneously at high pressure (>22 GPa) and low temperature (<1.8 K). The system uses ∼5–10 mm3 samples compressed by double-toroidal sintered diamond anvils, with the required forces generated by a Paris-Edinburgh press of 30 kg mass. Technical details are given and diffraction data of ε-iron at 22.6 GPa and 1.79 K are presented.
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