Cryogenic linear quadrupole ion trap with 5 T superconductiong solenoid for x-ray magnetic linear dichroism spectroscopy of size-selected clusters, molecular ions, and complexes. Magnetron gas agregation is the standard ion source, but other ion sources can be added as well. Because of its complexity, this experiment requires thorough consultation with the scientist in charge. Please contact us well ahead of time to discuss experimental feasibility.
- metal ion source (single/dual target magnetron sputtering and gas aggregation with additional reactive gas port)
- hexapole collision/reaction cell for preparation of ionic complexes and oxides
- quadrupole mass filter for monodisperse ion beam
- cryogenic ion trap (liquid-helium-cooled) with ion temperatures down to 7.4 K
- buffer gas cooling for Zeeman relaxation
- applied magnetic field (0 - 5 T) coaxial with ion trap
- reflectron time-of-flight mass spectrometer for ion yield detection of x-ray absorption and XMCD
Further ion sources (e.g. electrospray ionization) can be made available upon request.
See here for details of beamline UE52-PGM.
|Experiment in vacuum||yes|
|Temperature range||3 - 300 K|
|Detector||high transmission reflectron time-of-flight mass spectrometer for ion yield spectroscpy|
|Manipulators||cryogenic linear quadrupole ion trap|
|applied magnetic field||0 - 5 T|
|mass range||19.5 mm/440 kHz Extrel quadrupole mass filter: 10 - 4000 amu|
|ion source||magnetron sputtering/gas aggregation ion source (variable; dual target; reactive gas port)|
|sample preparation||hexapole collision cell with reactive gas port|
Nanocluster trap is jointly operated by Helmholtz-Zentrum Berlin, Uni Freiburg, TU Berlin, Kyushu University, and Toyota Technological Institute.
Nanocluster Trap is partially funded by the German Federal Ministry for Education and Research (BMBF) under Grant No. BMBF-05K13VF2.