U125-2_SGM

U125-2_SGM Undulator SGM horizontal polarisation

U125-2_SGM is a multi-purpose VUV beamline. The polarization is fixed horizontal. Higher undulator orders are suppressed. Please note the interlock-requirements given below.

Photon flux (top-up operation). Data can be downloaded from the box at the right.

Photon flux (top-up operation). Data can be downloaded from the box at the right.


List of publications

Applicable station(s)

Temperature rangePressure Range
nmTransmission NEXAFS room temperature<10^-3 mbar
ALICE 10 K-475K--
Beamline data
Segment 2
Location (Pillar) 4.2
Source U125-2
Monochromator SGM
Energy range 29 - 138 eV
Energy resolution 16000 (500 l/mm grating)
Flux 1E13 ph/s/300 mA
Polarisation horizontal
Divergence horizontal 4.5 mrad
Divergence vertical 0.6 mrad
Focus size (hor. x vert.) 120 µm (hor), 60 µm (vert)
User endstation
Distance Focus/last valve ca. 1475 mm
Height Focus/floor level 1420 mm
Beam availability
Phone 14701

Interlock requirements: At this beamline the vacuum interlock is implemented via a Pfeiffer Ion gauge, which connects directly to the beamline electronics. The gauge can be provided by HZB or any user-provided Pfeiffer gauge can be connected.The simplest way to fit this is to mount a CF40 "T" to the beam port and to connect the beamline gauge there. The distance between the last flange and the focus shortens thereby by 125 mm. Please contact the beamline team before you install your end station.