ELISA instrument at BESSY-II
- spectroscopy beamline for liquid-vapour interfaces (jet and Langmuir troughs) and solid surfaces
- ambient pressure X-ray photoelectron spectroscopy
- low energy (20 - 1000eV) and high energy (250 - 2000eV) branches
- infrared reflection absorption spectroscopy simultanously on both branches by guiding IR beams from BESSY to both stations
High energy branch: 250 - 2000eV
- Langmuir trough for liquid surface
- XPS nozzle 0.5mm above the surface with differential pumping
- CCD on forward direction for X-ray scattering
Proof-of-principle experiment: stearic acid monolayer on water surface conducted at ALS, Berkeley, USA. (Hoek, et. al., JPCb, 2024)