Meibohm, J.; Schreck, S.; Wernet, P.: Temperature dependent soft x-ray absorption spectroscopy of liquids. Review of Scientific Instruments 85 (2014), p. 103102/1-7
10.1063/1.4896977
Open Access Version
Abstract:
A novel sample holder is introduced which allows for temperature dependent soft x-ray absorption spectroscopy of liquids in transmission mode. The setup is based on sample cells with x-ray transmissive silicon nitride windows. A cooling circuit allows for temperature regulation of the sample liquid between −10 ◦C and +50 ◦C. The setup enables to record soft x-ray absorption spectra of liquids in transmission mode with a temperature resolution of 0.5K and better. Reliability and reproducibility of the spectra are demonstrated by investigating the characteristic temperature-induced changes in the oxygen K-edge x-ray absorption spectrum of liquid water. These are compared to the corresponding changes in the oxygen K-edge spectra from x-ray Raman scattering.