RHIC BPM SYSTEM MODIFICATIONS AND PERFORMANCE.
The RHIC beam position monitor (BPM) system provides independent average orbit and turn-by-turn (TBT) position measurements. In each ring, there are 162 measurement locations per plane (horizontal and vertical) for a total of 648 BPM planes in the RHIC machine. During 2003 and 2004 shutdowns, BPM processing electronics were moved from the RHIC tunnel to controls alcoves to reduce radiation impact, and the analog signal paths of several dozen modules were modified to eliminate gain-switching relays and improve signal stability. This paper presents results of improved system performance, including stability for interaction region beam-based alignment efforts. We also summarize performance of recently-added DSP profile scan capability, and improved million-turn TBT acquisition channels for 10 Hz triplet vibration, nonlinear dynamics, and echo studies.
- Research Organization:
- BROOKHAVEN NATIONAL LABORATORY (US)
- Sponsoring Organization:
- DOE/SC (US)
- DOE Contract Number:
- AC02-98CH10886
- OSTI ID:
- 15016129
- Report Number(s):
- BNL-73490-2005-CP; R&D Project: AD-003; KB-0202011; TRN: US0501939
- Resource Relation:
- Conference: PAC 2005 PARTICLE ACCELERATOR CONFERENCE, KNOXVILLE, TN (US), 05/16/2005--05/20/2005; Other Information: PBD: 16 May 2005
- Country of Publication:
- United States
- Language:
- English
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