Speaker
Dr
Dmitry Teytelman
(SLAC)
Description
Super B-factory designs under consideration expect to reach luminosities in the
$10^{35}$ - $10^{36}$ range. The dramatic luminosity increase relative
to the existing B-factories is achieved, in part, by significantly raising
the beam currents stored in the electron and positron rings. In such
machines beam loading effects drive the RF system design. The main effects
are the synchronous phase transients due to the uneven ring filling patterns
and the longitudinal coupled-bunch instabilities driven by the fundamental
impedance of the RF cavities. A systematic approach to predicting such
effects and for optimizing the RF system design will be presented. Existing
as well as promising new techniques for reducing the effects of heavy beam
loading will be described and illustrated with examples from the existing
storage rings including PEP-II and KEKB.
Work supported by U.S. Department of Energy contract DE-AC02-76SF00515
Author
Dr
Dmitry Teytelman
(SLAC)
