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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.

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Presentation on theme: "BEAM STABILITY IN SYNCHROTRONS WITH DIGITAL TRANSVERSE FEEDBACK SYSTEMS IN DEPENDENCE ON BEAM TUNES V.M. Zhabitsky Joint Institute for Nuclear Research."— Presentation transcript:

1 BEAM STABILITY IN SYNCHROTRONS WITH DIGITAL TRANSVERSE FEEDBACK SYSTEMS IN DEPENDENCE ON BEAM TUNES V.M. Zhabitsky Joint Institute for Nuclear Research Dubna

2 DK BPM Front Electronics Digital Signal Processor Delay Amplifier Transverse Feedback System 31.08.20112IX International Scientific Seminar in Memory of V.P. Sarantsev

3 DK BPM 31.08.20113IX International Scientific Seminar in Memory of V.P. Sarantsev

4 31.08.20114IX International Scientific Seminar in Memory of V.P. Sarantsev

5 31.08.20115IX 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 31.08.20116IX International Scientific Seminar in Memory of V.P. Sarantsev

7 BPM Front Electronics Digital Signal Processor Delay Amplifier Digital Transverse Feedback System DK 31.08.20117IX International Scientific Seminar in Memory of V.P. Sarantsev

8 BPM Front Electronics Digital Signal Processor Delay Amplifier Digital Transverse Feedback System DK 31.08.20118IX International Scientific Seminar in Memory of V.P. Sarantsev

9 31.08.2011IX International Scientific Seminar in Memory of V.P. Sarantsev9

10 31.08.2011IX International Scientific Seminar in Memory of V.P. Sarantsev10 TFS with Notch and FIR-1 FiltersTFS with Notch and Hilbert Filters

11 31.08.2011IX International Scientific Seminar in Memory of V.P. Sarantsev11 TFS with Notch and Hilbert Filters TFS with Notch and FIR-1 Filters

12 31.08.201112IX International Scientific Seminar in Memory of V.P. Sarantsev

13 31.08.2011IX International Scientific Seminar in Memory of V.P. Sarantsev1331.08.201113

14 31.08.201114IX International Scientific Seminar in Memory of V.P. Sarantsev LHC Damper (CERN, JINR) V.Zhabitsky, W.Hӧfle et al. RuPAC 2010

15 LHC Damper (CERN, JINR) Single Bunch Operation Damping of Injection Errors Damper ON Damper OFF 31.08.201115IX International Scientific Seminar in Memory of V.P. Sarantsev V.Zhabitsky, W.Hӧfle et al. RuPAC 2010

16 Feedback chain from pick-up Q 7 to kicker H 1 Feedback chain from pick-up Q 9 to kicker H 1 31.08.2011IX International Scientific Seminar in Memory of V.P. Sarantsev16 LHC Damper (CERN, JINR) D n – contours for Transverse feedback system in the case of horizontal oscillations after injection (beam 1)

17 31.08.2011IX International Scientific Seminar in Memory of V.P. Sarantsev17 LHC Damper (CERN, JINR) D n – contours for Transverse feedback system in the case of vertical oscillations after injection (beam 2) without instability τ inst = 200 T rev

18 31.08.201118IX International Scientific Seminar in Memory of V.P. Sarantsev

19 0 A13 A6.5 A damper ON vertical horizontal damper always switched on at turn 2000 Beam 2 31.08.2011 19 IX 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

20 V.P. Sarantsev, I.N. Ivanov, 1991 JINR 31.08.201120IX International Scientific Seminar in Memory of V.P. Sarantsev

21 31.08.201121IX International Scientific Seminar in Memory of V.P. Sarantsev

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