2011 Neutron X-ray School

Experiment Class at 16BM-D: High-Pressure Diffraction
Beamline scientist (Changyong Park) and the students were watching on-line Ruby spectrometer signals to calibrate the sample pressure while they increased the cell pressure remotely.
Beamline scientist (Changyong Park) and the students were watching on-line Ruby spectrometer signals to calibrate the sample pressure while they increased the cell pressure remotely.

Two groups of NX School 2011 students took High-Pressure Diffraction class on June 23-24 at HPCAT 16BM-D beamline as a part of their courses. Beamline scientists, Changyong Park and Dmitry Popov, gave the students intense trainings of hands-on experiment and data analysis. The students learned about basic mechanisms of diamond anvil cells to generate GPa level pressures and automatized pressure control system including HPCAT-made gear-box and on-line Ruby spectrometer. The pressure effect on materials properties was demonstrated in the class by observing the lattice parameter contraction with pressure and the hexagonal to cubic phase transition of ZnO around 10GPa at room temperature. The data analysis was made through the Rietveld method to determine the lattice parameters changed with pressure.

More pictures from the lesson.