Modeling RHIC Linear Chromaticity with Sextupole Components in the Arc Main Dipoles

Technical Report · Mon Apr 30 04:00:00 EDT 2007

DOI:https://doi.org/10.2172/1061867· OSTI ID:1061867

Luo, Y. ^[1]; Jain, A. ^[1]; Fischer, W. ^[1]; Tepikian, S. ^[1]; Trbojevic, D. ^[1]

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

The sextupole components in the arc main dipoles complicate predications of the linear chromaticities in the Relativistic Heavy Ion Collider (RHIC). In this article, the measured linear chromaticity splits are modeled with the sextupole components in the arc main dipoles. The values for the equivalent average sextupole strength (K₂L)_dipole,mean in the main dipoles are derived with an offline optics model at Blue ring injection, Blue ring store, and Yellow ring injection. The findings are compared to the b2 estimates from the bench measurements of the magnetic field. Reasons for the discrepancy between them are suggested.

• Research Organization: Brookhaven National Laboratory (BNL), Upton, NY (United States). Relativistic Heavy Ion Collider (RHIC)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: AC02-98CH10886
• OSTI ID: 1061867
• Report Number(s): BNL--99426-2013-IR; KB0202011
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
relativistic heavy ion collider