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

摘要

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 CaTiO_3 at about 1300°C with this new furnace using Rietveld and maximum-entropy-method analysis.