Title :
Multimillion-turn beam position monitors for RHIC
Author :
Satogata, T. ; Cameron, P. ; Cerniglia, P. ; Cupolo, J. ; Dawson, C. ; Degen, C. ; Mead, J. ; Vetter, K.
Author_Institution :
Brookhaven Nat. Lab., Upton, NY, USA
Abstract :
During the RHIC 2003 run, two beam position monitors (BPMs) in each transverse plane in the RHIC blue ring were upgraded with high-capacity mezzanine cards. This upgrade provided these planes with the capability to digitize up to 128 million consecutive turns of RHIC beam, or almost 30 minutes of continuous beam centroid phase space evolution for a single RHIC bunch. This paper describes necessary hardware and software changes and initial system performance. We discuss early uses and results for diagnosis of coherent beam oscillations, turn-by-turn (TBT) acquisition through a RHIC acceleration ramp, and ac-dipole nonlinear dynamics studies.
Keywords :
colliding beam accelerators; data acquisition; high energy physics instrumentation computing; ion accelerators; nuclear electronics; particle beam bunching; particle beam diagnostics; particle beam dynamics; storage rings; synchrotrons; RHIC acceleration ramp; RHIC beam bunch; Relativistic Heavy Ion Collider blue ring; ac-dipole nonlinear dynamics studies; coherent beam oscillations; continuous beam centroid phase space evolution; hardware changes; high-capacity mezzanine cards; initial system performance; multimillion-turn beam position monitors; software changes; transverse plane; turn-by-turn acquisition; Data acquisition; Digital signal processing; Extraterrestrial measurements; Gain measurement; Hardware; Laboratories; Random access memory; Regulators; Software performance; System performance;
Conference_Titel :
Particle Accelerator Conference, 2003. PAC 2003. Proceedings of the
Print_ISBN :
0-7803-7738-9
DOI :
10.1109/PAC.2003.1289234
