Piezo-QEXAFS: advances in time-resolved X-ray absorption spectroscopy

The Piezo-QEXAFS technique is a novel tool for time-resolved X-ray absorpti on spectroscopy in the hard X-ray range. Monochromator components consistin g of specialized tilt stages to perform fast energy scans, lightweight crys tal holders, bending mechanics, and control electronics are being installed and commissioned. It is planned to perform fast EXAFS scans with time reso lution in the millisecond range. With Piezo-QEXAFS all typical X-ray absorp tion experiments will be possible as it retains the standard linear geometr y. The achieved time resolution opens interesting insights into the dynamic s of phase transitions and chemical reactions.