Effect of X-ray spot size on liquid jet photoelectron spectroscopy
Copyright policy )Effect of X-ray spot size on liquid jet photoelectron spectroscopy
A 30 µm pinhole is introduced in the intermediate focus of the SIM beamline at the Swiss Light Source to improve the spot size at the second downstream focus, which is used here for liquid jet X-ray photoelectron spectroscopy experiments. The 30 µm pinhole reduces the beam dimensions from 250 (v) × 100 (h) µm to 75 × 45 µm for a vertical exit slit of 100 µm. The smaller X-ray spot results in a substantial decrease in the gas-phase contribution of the spectra from 40% down to 20% and will help to simplify the interpretation and peak assignments of future experiments.
- ETH Zurich Switzerland
- Paul Scherrer Institute Switzerland
Gas-phase photoemission; Liquid-air interface; Near-ambient pressure photoemission, Short Communications, Near-ambient pressure photoemission, Gas-phase photoemission, Liquid-air interface
Gas-phase photoemission; Liquid-air interface; Near-ambient pressure photoemission, Short Communications, Near-ambient pressure photoemission, Gas-phase photoemission, Liquid-air interface
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