|Photon energy||260 eV – 2200 eV (maximum range)|
260 eV – 2000 eV at > 1012 ph/s
|Resolving power||Up to 35000|
|Spot size||60 µm (h) x 25 µm (v)|
|Analyser||Scienta Hipp-3 with SWIFT acceleration mode|
|Catalysis cell||Normally up to 10 mbar|
Laser heating to to 600 C
Gas mixing panel (up to 8 gases)
Mass spectroscopy of gas sampled at cell input, output or analyzer.
|Electrochemical/liquid cell||Up to 30 mbar|
Solid-liquid interfaces via dip and pull
Liquid-gas interfaces via liquid jet
APXPS proposal submission
As there are two complimentary APXPS beamlines at MAX IV, many proposals could be carried out at either HIPPIE or SPECIES. Such proposals can therefore be submitted with a preference of beamline, which is recommended if a proposal would benifit from specific capabilities of either beamline (e.g. photon or sample environment requirements), or without a preference in which case the proposal will be considered for both beamlines.
Since VT-22 HIPPIE beamline opens up a new type of access – Fast Access – to allow short-notice proposals for short experiments. This type of access can be used for both feasibility studies and scientific experiments. Maximum 6 shifts (24 hrs) can be allocated for a single proposal. Both, Catalysis and Electrochemical cells (but not PM-IRRAS) are offered for this type of access, however during certain pre-defined time. Please contact beamline personnel for current schedule. Catalysis AP cell is offered with full functionality, however, its cleanliness can not be guaranteed as we do not bake it in between measurements. EC cell is only offered for dip-and-pull measurements with water-based electrolytes. No glove box or liquid microject can be used.
For information how to apply for the fast access, please visit https://www.maxiv.lu.se/user-access/access-modes/fast-access/
Scanning probe microscopy
If your experiment would benefit from UHV scanning probe microscopy (STM or NC-AFM) of your surfaces, samples from HIPPIE can be transferred via vacuum suitcase to an Omicron VT SPM. For more information, refer to the scanning tunneling microscope webpages.
HIPPIE sample requirements
HIPPIE uses slightly custom “flag” style sample plates. These can have a hole in the plate to allow for direct heating of the sample via an infrared laser and a thermocouple electrical contacts for direct measurement of the sample temperature. Samples are typically mounted on the plates using clips, that can either be attached to the plate by spot welding or screws. Typically, samples are approximately 8 x 8 mm, with a maximum size of 10 x 10 mm (but this is more challenging to mount).