BEAM LIFETIME AND EMITTANCE GROWTH MEASUREMENTS OF GOLD BEAMS IN RHIC AT STORAGE.

Conference · Mon Jun 18 00:00:00 EDT 2001

OSTI ID:782958

FISCHER, W; DREES, A; BRENNAN, J M; CONNOLLY, R; FLILLER, R; TEPIKIAN, S; VAN ZEIJTS, J

During stores of gold beams, longitudinal and transverse beam sizes were recorded. Longitudinal profiles were obtained with a wall current monitor. Transverse profiles were reconstructed from gold-gold collision rates at various relative transverse beam positions. The total beam lifetime was measured with a beam current transformer, the bunched beam lifetime with the wall current monitor. Diffusion rates in the beam halo were determined from the change in the loss rate when a scraper is retracted. The measurements are used to determine the lifetime limiting effects. Beam growth measurements are compared with computations of beam-growth times from intra-beam scattering.

• Research Organization: Brookhaven National Lab. (BNL), Upton, NY (United States)
• Sponsoring Organization: USDOE Office of Energy Research (ER) (US)
• DOE Contract Number: AC02-98CH10886
• OSTI ID: 782958
• Report Number(s): BNL-67975; KA0201; R&D Project: AD002ADOP; KA0201; TRN: US0103666
• Resource Relation: Conference: PARTICLE ACCELERATOR CONFERENCE 2001, CHICAGO, IL (US), 06/18/2001--06/22/2001; Other Information: PBD: 18 Jun 2001
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
BEAM CURRENTS
BEAM POSITION
GOLD IONS
SCATTERING
BROOKHAVEN RHIC
ION BEAMS
BEAM MONITORS
ION-ION COLLISIONS
BEAM BUNCHING