RHIC orbit response analysis with LOCO Run 12

Technical Report · Thu Mar 21 04:00:00 EDT 2013

DOI:https://doi.org/10.2172/1073005· OSTI ID:1073005

Summers, T. ^[1]; Kewisch, J. ^[1]

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1. Brookhaven National Laboratory (BNL), Upton, NY (United States)

Orbit response matrix analysis (ORM) is a well-established technique used to find and correct linear optics errors in accelerators. The measurement consists of recording the change in the closed orbit around the ring in response to successively changing dipole corrector magnets by a known amount. The analysis is performed by adjusting parameters in the accelerator model until the difference between the modeled response matrix and the measurement is minimized. Typical parameters to adjust are quadrupole and skew quadrupole strength, dipole corrector magnet gains and rolls and BPM gains and rolls. The adjusted model should be a close approximation to the real machine as seen by the BPMS. The calculated changes in gain/strength can be applied to the real machine to return the linear optics to the design.

• Research Organization: Brookhaven National Laboratory (BNL), Upton, NY (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: AC02-98CH10886
• OSTI ID: 1073005
• Report Number(s): BNL--100574-2013-IR; KB0202011
• Country of Publication: United States
• Language: English

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