User station@PM3

Open port dipole beamline (soft X-ray, variable polarisation)

PM3 merges the developments of the former BESSY I SX700 III monochromator for elliptically polarized VUV radiation and of BESSY II collimated plane grating monochromators. This way it is possible to achieve circular polarization from a BESSY II dipole in the range 20 – 2000 eV with high photon flux, high energy resolution and high stability.

The beamline is available as open port to host user stations.

Details PM3 beamline

Please contact the instrument scientist(s) before applying for beamtime.

Optical Layout of the PM3 beamline

Optical Layout of the PM3 beamline


Methods

Remote access

not possible

Instrument data
Phone (~49 30 8062-) 13429
Beam availability 24h/d
Source D111 (Dipole)
Monochromator PM3
Energy range (at experiment) 20 - 1900 eV
Energy resolution 32000 at 64 eV
Flux 1e9 - 1e10
Polarisation • horizontal
• circular
Focus size (hor. x vert.) 180 µm hor., vert. depends on exit slit
Temperature range depending on user station
Pressure range depending on user station
Detector depending on user station
Manipulators depending on user station
Sample holder compatibility depending on user station
Additional equipment depending on user station
Additional information Details beamline PM3
Floor Plan

Floor Plan

Electron-Yield on Au for different degrees of ellipticity

Electron-Yield on Au for different degrees of ellipticity

Energy resolution @ 400 eV

Energy resolution @ 400 eV

Noise of X-ray intensity close to "shot-noise"

Noise of X-ray intensity close to "shot-noise"