BPM for ID Radiation

Technical Description:

The beam position monitors are based on a development by Dr. Karsten Holldack, BESSY Berlin, in collaboration with FMB.
The beam position monitors use up to four blades, whose narrow fronts are oriented towards the radiation source, to scan the off-axis radiation of the undulator and determine on-line the position of the centre of the insertion device radiation from the emitted signals.
The size and the geometry of the blades will be adapted to the beam characteristics at the place of the position monitor in order to achieve a maximum photocurrent yield at a maximum sensibility and without the disturbing dipole background.
The blades for insertion device applications consist of tungsten and will be actively cooled via heat conducting ceramics to resist the thermal load of the ID radiation.


Technical Data:

Detector head:    OFHC-Copper
Blades:   0,2 mm thick, Tungsten
AlN insulators, ZrO washers:   0.5 mm AlN, ZrO-washers
Base flange:   NW 150 CF
Stand:   Steel, sand filled, polystyrole-insulated
Vertical / horizontal stroke:   Up to 20 mm
Electronics:   4 channel-current to DC converter LCAD4,
internal BIAS supply
additional threshold electrode
As options available:   Vacuum chamber with bellows
x,y stage
UHV compatibility:   yes


Datasheet BPM_for_ID_Radiation

September 8, 2022
Detectors & Diagnostics
We use cookies

We use cookies on our website. Some of them are essential for the operation of the site, while others help us to improve this site and the user experience (tracking cookies). You can decide for yourself whether you want to allow cookies or not. Please note that if you reject them, you may not be able to use all the functionalities of the site.