BEAM-BEAM COLLISIONS AND CROSSING ANGLES IN RHIC.

Conference · Mon Apr 12 00:00:00 EDT 1999

OSTI ID:11446

PEGGS, S ^[1]

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1. BROOKHAVEN NATIONAL LABORATORY

This paper evaluates the strength of head on and parasitic beam-beam collisions in RHIC when the crossing angle is zero. A non-zero crossing angle is not required in normal operation with 120 bunches, thanks to the early separation of the two beams. The RHIC lattice is shown to easily accommodate even conservatively large crossing angles, for example in beam dynamics studies, or in future operational upgrades to as many as 360 bunches per ring. A modest loss in luminosity is incurred when gold ions collide at an angle after 10 hours of storage.

• Research Organization: Brookhaven National Lab., Upton, NY (US)
• Sponsoring Organization: USDOE Office of Energy Research (ER) (US)
• DOE Contract Number: AC02-98CH10886
• OSTI ID: 11446
• Report Number(s): BNL--66426; KB0202000; KB0202000
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
BEAM BUNCHING
BEAM DYNAMICS
BEAM LUMINOSITY
BROOKHAVEN RHIC
COLLIDING BEAMS
GOLD IONS
HADRONS
STORAGE