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TIME Meeting, M. Minty, January 18, 2011
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TIME Meeting, M. Minty, January 18, 2011 Instrumentation Systems RHIC RUN-11 Startup ramp development with simultaneous orbit, tune, and coupling feedback new timing setup procedure (defer) new global orbit feedback (defer)
description
Instrumentation Systems RHIC RUN-11 Startup. ramp development with simultaneous orbit, tune, and coupling feedback new timing setup procedure (defer) new global orbit feedback (defer). TIME Meeting, M. Minty, January 18, 2011. Ramp Development, RHIC RUN-11. post mortem, RUN-9:. - PowerPoint PPT Presentation
Transcript of TIME Meeting, M. Minty, January 18, 2011
TIME Meeting, M. Minty, January 18, 2011
Instrumentation SystemsRHIC RUN-11 Startup
ramp development with simultaneous orbit, tune, and coupling feedback new timing setup procedure (defer) new global orbit feedback (defer)
Ramp Development, RHIC RUN-11
leading cause of failure:poor orbit control
post-shutdown commissioning:
RUN-9 : 13 ramps until blue/yellow at 250 GeV RUN-11: 4 ramps until blue/yellow at 250 GeV
post mortem, RUN-9:
Ramp Development, RHIC RUN-11tune / coupling feedback - Y. Luo, A. Marusic, K. Mernick, M. Minty, M. Wilinski, + operations
RUN-8 RUN-9 RUN-11
TUNE
SCO
UPLIN
G
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history: proof-of-principle in RUN-6 (P. Cameron, Y. Luo, R. Jones et al) considerable modifications just before and during RUN-9 operational in RUN-10
RUN-9 RUN-11 (blue)
Ramp Development, RHIC RUN-11orbit feedback – A. Marusic, M. Minty, V. Ptitsyn, G. Robert-Demolaize
ORBITS measured just after attaining first ramp to 250 GeV:
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horiz
onta
lve
rtica
l
history: proof-of-principle in RUN-10 BPM polarity reversal, early RUN-10
RUN-11 (yellow)
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