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Inside the storage ring

last modified 16-10-2008 08:53

The storage ring includes both straight and curved sections. As they travel round the ring, the electrons pass through different types of magnets. These include:




 

Bending magnets



 


When the electrons pass through these magnets, they are deflected from their straight path by several degrees. This change in direction causes them to emit synchrotron radiation.

Undulators

 


These magnetic structures, made up of a complex array of small magnets, force the electrons to follow an undulating, or wavy, trajectory. The beams of radiation emitted from the different bends overlap and interfere with each other to generate a much more intense beam of radiation than that generated by the bending magnets.

Focusing magnets

These magnets, placed in the straight sections of the storage ring, are used to focus the electron beam to keep it small and well-defined. A small and well-defined electron beam will produce the very bright X-ray beam needed for the experiments.

European Synchrotron Radiation Facility