11.湾曲型X線位置敏感検出器 (PSD) と動の構造研究

概要

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Time-resolved observations of phase transitions and solid reactions have been undertaken by angular dispersive powder diffraction at high temperature and pressure using the curved position sensitive detector (PSD) . The PSD streamer mode has a great advantage for the in situ observations of the structure changes within a few seconds because of high photon count efficiency of more than 70% and high angular resolution of 0.06° in 2θ.<BR>A Computer Aided Measurement And Control (CAMAC) System was applied to the time-resolved measurement of the diffraction intensities. An ADC having a 450MHz fast converter and histogram memory were installed in the system. The in situ observation of the pressure-induced amorphization of GeO<SUB>2</SUB> using diamond anvil pressure cell and kinetic studies of dehydration of alkaline earth hydroxides at high temperature are presented in this paper.
日本結晶学会の論文