A New Furnace For High‐Temperature Synchrotron X‐ray Powder Diffraction Experiments — Electron Density Analysis By Powder X‐ray Diffraction At 1300°C

A new furnace for synchrotron X‐ray powder diffraction experiments in a high‐temperature range up to 1600°C has been developed in order to obtain the detailed crystallographic information around high‐temperature structural phase transition for the diffractometer of the beam‐line 3A at the Photon Factory. The new furnace optical design is based on the flat‐specimen reflection geometry using a parallel beam. We have successfully acquired the electron density distribution map of CaTiO3 at about 1300°C with this new furnace using Rietveld and maximum‐entropy‐method analysis.