TUNE FEEDBACK AT RHIC

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

OSTI ID:784220

CAMERON, P; CERNIGLIA, P; CONNOLLY, R; CUPOLO, J; DAWSON, W C; DEGEN, C; DELLAPENNA, A; DELONG, J; DREES, A; HUHN, A; KESSELMAN, M; MARUSIC, A; OERTER, B; MEAD, J; SCHULTHEISS, C; SIKORA, R; VAN ZEIJTS, J

Preliminary phase-locked loop betatron tune measurement results were obtained during RHIC 2000 with a resonant Beam Position Monitor. These results suggested the possibility of incorporating PLL tune measurement into a tune feedback system for RHIC 2001. Tune feedback is useful in a superconducting accelerator, where the machine cycle time is long and inefficient acceleration due to resonance crossing is not comfortably tolerated. This is particularly true with the higher beam intensities planned for RHIC 2001. We present descriptions of a PLL tune measurement system implemented in the DSP/FPGA environment of a RHIC BPM electronics module and the feedback system into which the measurement is incorporated to regulate tune. In addition, we present results from the commissioning of this system during RHIC 2001.

• 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: 784220
• Report Number(s): BNL-67989; KA0201; R&D Project: AD002ADOP; KA0201; TRN: US0200065
• Resource Relation: Conference: PARTICLE ACCELERATOR CONFERENCE 2001, CHICAGO, IL (US), 06/18/2001--06/22/2001; Other Information: Supercedes report DE00784220; PBD: 18 Jun 2001; PBD: 18 Jun 2001
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
BROOKHAVEN RHIC
BEAM POSITION
BETATRONS
FEEDBACK
RESONANCE
BEAM MONITORS
TUNING
SUPERCONDUCTING DEVICES
DESIGN