A method for simultaneous linear optics and coupling correction for storage rings with turn-by-turn beam position monitor data

Journal Article · Fri May 13 00:00:00 EDT 2016 · Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment

DOI:https://doi.org/10.1016/j.nima.2016.05.020· OSTI ID:1340367

Yang, Xi ^[1]; Huang, Xiaobiao ^[2]

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1. Brookhaven National Lab. (BNL), Upton, NY (United States)
2. SLAC National Accelerator Lab., Menlo Park, CA (United States)

Here, we propose a method to simultaneously correct linear optics errors and linear coupling for storage rings using turn-by-turn (TbT) beam position monitor (BPM) data. The independent component analysis (ICA) method is used to isolate the betatron normal modes from the measured TbT BPM data. The betatron amplitudes and phase advances of the projections of the normal modes on the horizontal and vertical planes are then extracted, which, combined with dispersion measurement, are used to fit the lattice model. The fitting results are used for lattice correction. Finally, the method has been successfully demonstrated on the NSLS-II storage ring.

• Research Organization: Brookhaven National Laboratory (BNL), Upton, NY (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Basic Energy Sciences (BES)
• Grant/Contract Number: SC00112704; AC02–98CH10886; AC02–76SF00515
• OSTI ID: 1340367
• Alternate ID(s): OSTI ID: 1326712
• Report Number(s): BNL-112293-2016-JA
• Journal Information: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 828, Issue C; ISSN 0168-9002
• Publisher: Elsevier
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
optics correction
turn-by-turn
BPM