Speaker
Description
The "Facility for Antiproton and Ion Research" (FAIR) is a new international accelerator complex, which is currently built in Darmstadt, Germany. Part of this complex is the SIS100 heavy ion synchrotron with a circumference of ~1086 m. One of the required extraction systems is the electrostatic septum. This septum was built by Danfysik. It is operating with voltages up to 180 kV. The requirements on the vacuum quality (low 10-11mbar region) combined with voluminous chambers (in total ~6m long), the reproducibility and precision of the applied voltage as well the mechanical stability and exact positioning even after bakeout cycles up to 300 °C have been the biggest challenges on this project. Specifications on rise and fall times for the high voltage implies the need of a bleeder resistor, used for improved voltage accuracy, too. During this project numerous problems had to been solved to end up with a stable system. The results of the tests and lessons learned will be presented.
| Paper status | Proceeding files received |
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