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Title |
Page |
| IT04 |
Fast Positional Global Feedback for Storage Rings
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7 |
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- E. Plouviez
ESRF, The European Synchrotron Radiation Facility, Grenoble, France
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Stability of the closed orbit of a storage ring is limited by
the stability of the components defining this orbit:
magnets position and field values. Measurements of the
variation of the stored beam orbit with respect to a
nominal orbit and application of orbit correction derived
from these measurements can reduce these distortions.
The subject of this talk is the implementation of such
correction at high frequencies (up to about 100 Hz) using
global correction schemes.
The basic theoretical aspects of the problem will be
presented:
- Global versus local scheme
- Feedback loop dynamics.
The technical problems associated with the
implementation of such systems will also be addressed:
- BPM and correctors design
- Feedback loop electronic design
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