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BEAM STABILITY IN SYNCHROTRONS WITH DIGITAL TRANSVERSE FEEDBACK SYSTEMS IN DEPENDENCE ON BEAM TUNES. V.M. Zhabitsky Joint Institute for Nuclear Research Dubna. Transverse Feedback System. Delay. Digital Signal Processor. Amplifier. Front Electronics. DK. BPM. BPM. DK. - PowerPoint PPT Presentation
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BEAM STABILITY IN SYNCHROTRONS WITH DIGITAL TRANSVERSE FEEDBACK SYSTEMS
IN DEPENDENCE ON BEAM TUNES
V.M. ZhabitskyJoint Institute for Nuclear Research
Dubna
2
DK
BPM
Front Electronics
Digital Signal ProcessorDelay
Amplifier
DKBPM
DKBPM
DKBPM
Transverse Feedback System
31.08.2011 IX International Scientific Seminar in Memory of V.P. Sarantsev
3
DK
BPM
31.08.2011 IX International Scientific Seminar in Memory of V.P. Sarantsev
IX International Scientific Seminar in Memory of V.P. Sarantsev 431.08.2011
IX International Scientific Seminar in Memory of V.P. Sarantsev 531.08.2011
IX International Scientific Seminar in Memory of V.P. Sarantsev 6
DK
BPM
Front Electronics
Digital Signal Processor
Delay
Amplifier
Basic Description of the Transverse Feedback System
31.08.2011
IX International Scientific Seminar in Memory of V.P. Sarantsev 7
BPM
Front Electronics
Digital Signal Processor
Delay Amplifier
Digital Transverse Feedback System
DK
31.08.2011
IX International Scientific Seminar in Memory of V.P. Sarantsev 8
BPM
Front Electronics
Digital Signal Processor
Delay Amplifier
Digital Transverse Feedback System
DK
31.08.2011
IX International Scientific Seminar in Memory of V.P. Sarantsev 931.08.2011
IX International Scientific Seminar in Memory of V.P. Sarantsev 1031.08.2011
TFS with Notch and FIR-1 FiltersTFS with Notch and Hilbert Filters
IX International Scientific Seminar in Memory of V.P. Sarantsev 1131.08.2011
TFS with Notch and Hilbert Filters TFS with Notch and FIR-1 Filters
IX International Scientific Seminar in Memory of V.P. Sarantsev 1231.08.2011
IX International Scientific Seminar in Memory of V.P. Sarantsev 1331.08.201131.08.2011 13
IX International Scientific Seminar in Memory of V.P. Sarantsev 1431.08.2011
LHC Damper (CERN, JINR)
V.Zhabitsky, W.Hӧfle et al. RuPAC 2010
IX International Scientific Seminar in Memory of V.P. Sarantsev 15
LHC Damper (CERN, JINR)
Single Bunch Operation Damping of Injection Errors
Damper ONDamper OFF
31.08.2011
V.Zhabitsky, W.Hӧfle et al. RuPAC 2010
IX International Scientific Seminar in Memory of V.P. Sarantsev 16
Feedback chain from pick-up Q7 to kicker H1 Feedback chain from pick-up Q9 to kicker H1
31.08.2011
LHC Damper (CERN, JINR)
Dn – contours for Transverse feedback system in the case of horizontal oscillations after injection (beam 1)
IX International Scientific Seminar in Memory of V.P. Sarantsev 1731.08.2011
LHC Damper (CERN, JINR)
Dn – contours for Transverse feedback system in the case of vertical oscillations after injection (beam 2)
without instability τinst = 200 Trev
IX International Scientific Seminar in Memory of V.P. Sarantsev 1831.08.2011
0 A 13 A 6.5 A 6.5 A
damper ON
vertical
horizontal
damper always switched on at turn 2000
Beam 2
31.08.2011 19IX International Scientific Seminar in Memory of V.P. Sarantsev
LHC Performance. S. Myers (CERN). LHCC. 15 June 2011
Check filamentation without damper, with octupoles on and off
IX International Scientific Seminar in Memory of V.P. Sarantsev 20
V.P. Sarantsev, I.N. Ivanov, 1991
JINR
31.08.2011
IX International Scientific Seminar in Memory of V.P. Sarantsev 2131.08.2011
