PM3

Soft X-ray dipole variable polarisation with PGM open port + scattering chamber

PM3

"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." http://dx.doi.org/10.17815/jlsrf-2-73

For more details and current status contact the beamline scientist(s).

Floor Plan

Floor Plan


List of publications

Applicable station(s)

Temperature rangePressure Range
PM3 - magnetic scattering
RGBL-PEEM
So-Li-AS 77 - 700 Kcontact the responsible scientists for details
nmTransmission NEXAFS room temperature<10^-3 mbar
Resonant Scattering low-temperature sample holder 6.5 - 300 K, high temperature sample holder 80 - 650 K5 x 10-8 mbar (regular), < 2 x 10-9 mbar (after bakeout)
ALICE 10 K-475K--
Beamline data
Segment H11
Location (Pillar) 13.2
Source D111 (Dipole)
Monochromator PM3
Energy range 20 - 1900 eV
Energy resolution 32000 at 64 eV
Flux 1e9 - 1e10
Polarisation • horizontal
• circular
Divergence horizontal 1.5 mrad
Divergence vertical 1 mrad
Focus size (hor. x vert.) 300
User endstation Possible
Distance Focus/last valve 500 mm
Height Focus/floor level 1432 mm
Beam availability 24h/d
Phone 0049 30 8062 13429
Optical Layout

Optical Layout

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"