Correction of skew-quadrupole errors in RHIC

Conference · Tue Jan 01 00:00:00 EST 1991

OSTI ID:5740200

Dell, G F; Hahn, H; Lee, S Y; Parsen, G; Tepikian, S

The correction scheme for skew-quadrupole (a{sub 1}) errors in the Relativistic Heavy Ion Collider is presented. The a{sub 1} errors result from fabrication and from installation errors. At the selected betatron tune of v{sub x} {equals} 28.826 and v{sub y} {equals} 28. 820, the principal resonances driven by a{sub 1} errors are v{sub x} {minus} v{sub y} {equals} 0, the sum resonances near v{sub x} + v{sub y} which cause residual tune splitting and distortion of beta function, and v{sub y} {equals} 28 29 which cause vertical dispersion. Skew quadrupole correctors located in the insertions and arcs will be used to correct the coupling and sum resonances and, if required, separate correctors in the arcs could be used for vertical dispersion correction. The study of the a{sub 1} correction system confirmed that correction is possible at {beta}{sup {asterisk}} {equals} 2 m and {beta}{sup {asterisk}} {equals} 6 m and that the required corrector strengths are consistent with those specified for RHIC. 6 refs., 3 figs., 3 tabs.

• Research Organization: Brookhaven National Lab., Upton, NY (USA)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (USA)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 5740200
• Report Number(s): BNL-45521; CONF-910505-280; ON: DE91014035
• Resource Relation: Conference: 1991 Institute of Electrical and Electronics Engineers (IEEE) particle accelerator conference (PAC), San Francisco, CA (USA), 6-9 May 1991
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
QUADRUPOLES
CORRECTIONS
SUPERCONDUCTING MAGNETS
ERRORS
BEAM DYNAMICS
BETATRON OSCILLATIONS
BROOKHAVEN RHIC
COMPUTERIZED SIMULATION
RESONANCE
TUNING
ACCELERATORS
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
EQUIPMENT
HEAVY ION ACCELERATORS
MAGNETS
MULTIPOLES
OSCILLATIONS
SIMULATION
STORAGE RINGS
SUPERCONDUCTING DEVICES
430303* - Particle Accelerators- Experimental Facilities & Equipment
430200 - Particle Accelerators- Beam Dynamics
Field Calculations
& Ion Optics