SPECS Phoibos 225HV with mounted pre-lens.
The P22 experimental hutch hosts several XPS instruments. The work horse setup is a high-resolution Hard X-ray Photoelectron Spectroscopy (HAXPES) instrument.
Photoelectrons with up to 10.5 keV kinetic energy can be measured in different experimental geometries by means of a SPECS Phoibos 225 HV hemispherical analyser with a delayline detector. For angle-resolved studies or high-transmission requirements, an optional wide angle lens (+- 30 degrees acceptance) can be adapted to the analyzer.
The analysis chamber is equipped with a custom made high-precision fully motorised OMICRON 5-axis manipulator with LHe cooling. The instrument is mounted on a motorised high-precision XZ-platform consisting of a monolithic granite support which is adjustable in height and can be translated transversely relative to the incoming X-ray beam with very high precision.
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Electron spectrometer |
SPECS Phoibos 225HV |
|---|---|
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Manipulator |
Omicron 5-axis |
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Sample temperature range |
45 - 400K |
|
Electron Energy range: |
0 - 10.5 keV |
|
Total Energy Resolution: |
typ. 100 - 400 meV |
Photoelectron references spectra
The BMBF funded the projects 05K19UM2/ 05K19WW1HarMomMic Johannes Gutenberg-Universität Mainz/Julius-Maximilians-Universität Würzburg titled "ToF-HAXPES: Implementierung einer Flugzeit-HAXPES Anlage mit Spinfilter-Option an Beamline P22 (PETRA III). Teilprojekte 1/2" (G. Schönhense/R. Claessen)
