Error Correction for the JLEIC Ion Collider Ring

Conference · Sun May 01 04:00:00 EDT 2016

OSTI ID:1331984

Wei, Guohui ^[1]; Morozov, Vasiliy ^[1]; Lin, Fanglei ^[1]; Zhang, Yuhong ^[1]; Pilat, Fulvia C. ^[1]; Nosochkov, Yuri ^[2]; Wang, Min-Huey ^[2]

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1. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
2. SLAC National Accelerator Lab., Menlo Park, CA (United States)

The sensitivity to misalignment, magnet strength error, and BPM noise is investigated in order to specify design tolerances for the ion collider ring of the Jefferson Lab Electron Ion Collider (JLEIC) project. Those errors, including horizontal, vertical, longitudinal displacement, roll error in transverse plane, strength error of main magnets (dipole, quadrupole, and sextupole), BPM noise, and strength jitter of correctors, cause closed orbit distortion, tune change, beta-beat, coupling, chromaticity problem, etc. These problems generally reduce the dynamic aperture at the Interaction Point (IP). According to real commissioning experiences in other machines, closed orbit correction, tune matching, beta-beat correction, decoupling, and chromaticity correction have been done in the study. Finally, we find that the dynamic aperture at the IP is restored. This paper describes that work.

• Research Organization: Thomas Jefferson National Accelerator Facility, Newport News, VA (United States); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
• DOE Contract Number: AC05-06OR23177; AC02-06CH11357; AC02-76SF00515
• OSTI ID: 1331984
• Report Number(s): JLAB-ACP-16-2262; DOE/OR/23177-3987
• Country of Publication: United States
• Language: English