Chromaticity correction for the SSC Collider Rings
- Superconducting Super Collider Lab., Dallas, TX (United States)
- Stanford Linear Accelerator Center, Menlo Park, CA (United States)
We address the issue of correcting higher order chromaticities of the collider with one or more low {beta} insertions. The chromaticity contributed by the interaction regions (IRS) depends crucially on the maximum value of {beta} in the two IRs in a cluster, the phase advance between adjacent interaction points (IPs), and the choice of global tune. We propose a correction scheme in which the linear chromaticity is corrected by a global distribution of sextupoles and the second order chromaticity of each IR is corrected by a more local set of sextupoles. Compared to the case where only the linear chromaticity is corrected, this configuration increases the momentum aperture more than three times and also reduces the {beta} beat by this factor. With this scheme, the tune can be chosen to satisfy other constraints and the two IRs in a cluster can be operated independently at different luminosities without affecting the chromatic properties of the ring.
- Research Organization:
- Superconducting Super Collider Lab., Dallas, TX (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC35-89ER40486
- OSTI ID:
- 10165659
- Report Number(s):
- SSCL-Preprint-413; CONF-930511-169; ON: DE93016108; TRN: 93:020929
- Resource Relation:
- Conference: PAC `93: international particle accelerator conference,Washington, DC (United States),17-20 May 1993; Other Information: PBD: May 1993
- Country of Publication:
- United States
- Language:
- English
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Chromaticity Correction for the SSC Collider Rings
Dynamic aperture of the chromatically corrected Collider lattice