Single-pass beam measurements for the verification of the LHC magnetic model [electronic resource].
- Washington, D.C. : United States. Dept. of Energy, 2010.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
- Additional Creators:
- Brookhaven National Laboratory
United States. Department of Energy
United States. Department of Energy. Office of Scientific and Technical Information
- During the 2009 LHC injection tests, the polarities and effects of specific quadrupole and higher-order magnetic circuits were investigated. A set of magnet circuits had been selected for detailed investigation based on a number of criteria. On or off-momentum difference trajectories launched via appropriate orbit correctors for varying strength settings of the magnet circuits under study - e.g. main, trim and skew quadrupoles; sextupole families and spool piece correctors; skew sextupoles, octupoles - were compared with predictions from various optics models. These comparisons allowed confirming or updating the relative polarity conventions used in the optics model and the accelerator control system, as well as verifying the correct powering and assignment of magnet families. Results from measurements in several LHC sectors are presented.
- Published through SciTech Connect.
First International Particle Accelerator Conference (IPAC) 2010; Kyoto, Japan; 20100523 through 20100528.
Sun, Y.; Calaga, R.; Tomas, R.; Zimmermann, F.; Giovannozzi, M.; Redaelli, S.; Venturini-Delsolaro, W.
- Funding Information:
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