Optimizing Integrated Luminosity in a B Factory Storage Ring Using Emittance Control During a Beam Fill

Conference · Fri Aug 26 00:00:00 EDT 2011

OSTI ID:1023261

Seeman, John T

During a fill in a colliding beam storage ring, the beam currents decay which decreases the luminosity and reduces the beam-beam tune shift parameters. In this note we investigate the active control of the vertical and horizontal emittances during a fill in order to keep the beam-beam tune shifts at their maxima thereby maximizing the integrated luminosity over the fill. The beam conditions are complicated by the inter-beam requirements of a asymmetric collider, e.g. PEP-II. Estimates of the increase in integrated luminosity are given and discussions of the required emittance adjustments and control possibilities are included.

• Research Organization: SLAC National Accelerator Lab., Menlo Park, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-76SF00515
• OSTI ID: 1023261
• Report Number(s): SLAC-REPRINT-2011-014; TRN: US1104404
• Resource Relation: Conference: 17th IEEE Particle Accelerator Conference (PAC 97): Accelerator Science, Technology and Applications, 12-16 May 1997, Vancouver, British Columbia, Canada
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATORS
BEAM CURRENTS
COLLIDING BEAMS
DECAY
LUMINOSITY
STORAGE RINGS
Accelerators
ACCSYS