Title :
Transverse beam transfer functions of colliding beams in RHIC
Author :
Fischer, Wolf-Joachim ; Blaskiewicz, M. ; Calaga, R. ; Luo, Yun ; Pieloni, T.
Author_Institution :
BNL, Upton
Abstract :
We use transverse beam transfer functions to measure tune distributions of colliding beams in RHIC. The tune has a distribution due to the beam-beam interaction, nonlinear magnetic fields - particularly in the interaction region magnets, and non-zero chromaticity in conjunction with momentum spread. The measured tune distributions are compared with calculations.
Keywords :
colliding beam accelerators; ion accelerators; particle beam bunching; proton beams; storage rings; synchrotrons; RHIC; beam-beam interaction; bunch intensity evolution; colliding proton beams; interaction region magnets; nonlinear magnetic fields; nonzero chromaticity; transverse beam transfer functions; transverse tune distributions; Frequency measurement; Magnetic field measurement; Magnets; Nonlinear magnetics; Optical coupling; Particle beam measurements; Particle beams; Polarization; Protons; Transfer functions;
Conference_Titel :
Particle Accelerator Conference, 2007. PAC. IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
978-1-4244-0916-7
DOI :
10.1109/PAC.2007.4440921
