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

Remote access

not possible

Floor Plan

Electron-Yield on Au for different degrees of ellipticity

Energy resolution @ 400 eV

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