Large Scale Facilities

Magnetic Field Control

probe positioning & distance detection at bending magnets, undulators and wigglers

X-rays, also referred as synchrotron radiation, serve as an important tool to observe the structure and dynamics of matter. Modern light sources like free-electron lasers or third and fourth generation storage rings provide X-rays for a vast range of scientific areas, such as nanotechnology, health and medicine, engineering, forensics, archaeology, and agriculture.

The synchrotron radiation is generated by bending magnets, wigglers or undulators. While bending magnets and wiggler radiation have a broader spectrum of photon energies, undulators generate narrow peaks, i.e. bright and coherent radiation at specific harmonics. In order to control the emitted radiation, the magnetic field characteristics are essential and must be analyzed. This can be achieved by precisely positioning e.g. Hall probes inside the magnetic field. To permanently ensure the radiation quality and the correct guidance of the particle beam, the position and stability of bending magnets must be continuously monitored with highest accuracy. 

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