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Title: Skew quad compensation for SPEAR minibeta optics

Technical Report ·
DOI:https://doi.org/10.2172/6678449· OSTI ID:6678449

With the new minibeta insertion for SPEAR the betatron coupling and the perturbations of beam optics caused by the solenoid field of the MARK III detector can't be compensated by the simple coils used so far. Therefore another scheme with four skew quads arranged in two families has been chosen. Even though this scheme doesn't compensate the effect of the solenoid on the beam completely, the residual emittance coupling is much less than 1% which should be sufficient under all running conditions. The major advantage of this concept is its simplicity.

Research Organization:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
DOE Contract Number:
AC03-76SF00515
OSTI ID:
6678449
Report Number(s):
SLAC/AP-27; ON: DE84015180
Country of Publication:
United States
Language:
English