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Feedback techniques and SPS Ecloud instabilities - design estimates

Conference ·
OSTI ID:962181
The SPS at high intensities exhibits transverse single-bunch instabilities with signatures consistent with an Ecloud driven instability. While the SPS has a coupled-bunch transverse feedback system, control of Ecloud driven motion requires a much wider control bandwidth capable of sensing and controlling motion within each bunched beam. This paper draws beam dynamics data from the measurements and simulations of this SPS instability, and estimates system requirements for a feedback system with 2-4 GS/sec. sampling rates to damp Ecloud-driven transverse motion in the SPS at intensities desired for high-current LHC operation.
Research Organization:
Brookhaven National Laboratory
Sponsoring Organization:
Doe - Office Of Science
DOE Contract Number:
AC02-98CH10886
OSTI ID:
962181
Report Number(s):
BNL--82367-2009-CP; KB0202011
Country of Publication:
United States
Language:
English

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