Attention! The catalysis cell is currently unavailable for users. The high-temperature cell offers the same capabilities (and a lot more).

The Catalysis / general purpose AP cell enables photoemission measurements on catalytic and surface science type systems at mbar pressures. For the time-resolved APXPS please check Time-resolved APXPS page

DescriptionSmall volume (1 L) cell with controllable gas supply. Standard setup for general users.
Base Pressure 2 x 10-9 mbar
Sample manipulationX, Y, Z
Normal Emission. 55 deg synchrotron beam incidence (beam to surf normal)
Pressure range2 x 10-9 – 30 mbar
HeatersDirect laser (CW, 808 nm)
Up to 600C in 10 mbar for all gases except H2 and He.
for H2 and He:
– up to 600 C in 3 mbar
– up to 500 C in 5 mbar
– up to 400 C in 10 mbar
PID controlled
CoolingWater cooling down to 17 C
Sample holder typeOmicron flag style
Sample sizeUp to 8×8 mm2
Probe of inlet and outlet gas composition
Analyser apertures0.3 mm
Gas dosing 
(available 2018-I)
up to 8 individual gases (by user request) and their mixture. Fully automatic gas dosing system 
Max flow rate30 sccm (one gas)
ManipulationX, Y, Z. 
NE, 55 deg incidence (to surf. normal)
Availabilityunavailable for general users