Linear optics measurements and corrections using an AC dipole in RHIC

Conference · Sun May 23 00:00:00 EDT 2010

OSTI ID:1013479

Wang, G; Bai, M; Yang, L

We report recent experimental results on linear optics measurements and corrections using ac dipole. In RHIC 2009 run, the concept of the SVD correction algorithm is tested at injection energy for both identifying the artificial gradient errors and correcting it using the trim quadrupoles. The measured phase beatings were reduced by 30% and 40% respectively for two dedicated experiments. In RHIC 2010 run, ac dipole is used to measure {beta}* and chromatic {beta} function. For the 0.65m {beta}* lattice, we observed a factor of 3 discrepancy between model and measured chromatic {beta} function in the yellow ring.

• Research Organization: Brookhaven National Lab. (BNL), Upton, NY (United States). Relativistic Heavy Ion Collider (RHIC)
• Sponsoring Organization: DOE - Office Of Science
• DOE Contract Number: DE-AC02-98CH10886
• OSTI ID: 1013479
• Report Number(s): BNL-90772-2010-CP; R&D Project: KBCH139; KB0202011; TRN: US1102478
• Resource Relation: Conference: First International Particle Accelerator Conference (IPAC) 2010; Kyoto, Japan; 20100523 through 20100528
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATORS
ALGORITHMS
DIPOLES
OPTICS
QUADRUPOLES
relativistic heavy ion collider