002289485 001__ 2289485
002289485 003__ SzGeCERN
002289485 005__ 20180205164234.0
002289485 0247_ $$2DOI$$9JACoW$$a10.18429/JACoW-IPAC2017-TUPIK119
002289485 0248_ $$aoai:inspirehep.net:1626440$$pcerncds:CERN:FULLTEXT$$pcerncds:FULLTEXT$$pcerncds:CERN$$qINSPIRE:HEP$$qForCDS
002289485 035__ $$9http://inspirehep.net/oai2d$$aoai:inspirehep.net:1626440$$d2017-10-16T09:38:44Z$$h2017-10-17T04:00:09Z$$mmarcxml
002289485 035__ $$9Inspire$$a1626440
002289485 041__ $$aeng
002289485 088__ $$aCERN-ACC-2017-200
002289485 100__ $$aFox, John$$iINSPIRE-00082070$$jJACoW-00002558$$uSLAC
002289485 245__ $$9JACoW$$aControl of Intra-Bunch Vertical Instabilities at the SPS - Measurements and Technology Demonstration
002289485 260__ $$c2017
002289485 300__ $$a3 p
002289485 520__ $$9JACoW$$aWe present recent measurements demonstrating control of unstable beam motion in single bunch and bunch train configurations at the SPS. The work is motivated by anticipated intensity increases from the LIU and HL-LHC upgrade programs, and has included the development of a GHz bandwidth reconfigurable 4 GS/S signal processor with wideband kickers and associated amplifiers. The system was operated at 3.2GS/s with 16 samples across a 5 ns RF bucket (4.2 ns bunch at injection). The experimental results confirm damping of intra-bunch instabilities in both Q20 and Q26 optics configurations for intensities of 2x10¹¹ P/bunch. Instabilities with growth times of 200 turns are well-controlled from injection, consistent with the achievable gains for the 2 installed stripline kickers with 1 kW broadband power. Measurements from multiple studies in single-bunch and bunch train configurations show achieved damping rates, control of multiple intra-bunch modes, behavior of the system at injection and final damped noise floor. We present an analysis method to study the relative phase of slice motion during a transient to discriminate between TMCI and other types of Head-Tail instabilities.
002289485 540__ $$9JACoW$$aCC-BY-3.0$$uhttp://creativecommons.org/licenses/by/3.0/
002289485 65017 $$2SzGeCERN$$aAccelerators and Storage Rings
002289485 6531_ $$2JACoW$$afeedback
002289485 6531_ $$2JACoW$$acontrols
002289485 6531_ $$2JACoW$$ainjection
002289485 6531_ $$2JACoW$$akicker
002289485 6531_ $$2JACoW$$aoptics
002289485 690C_ $$aCERN
002289485 700__ $$aBartosik, [email protected]$$uCERN
002289485 700__ $$aDe Santis, [email protected]$$uLBNL, Berkeley
002289485 700__ $$aDusatko, John$$iINSPIRE-00435691$$jJACoW-00008544$$uSLAC
002289485 700__ $$aHöfle, [email protected]$$uCERN
002289485 700__ $$aLi, [email protected]$$uCERN
002289485 700__ $$aMétral, Elias$$iINSPIRE-00331339$$jJACoW-00001671$$uCERN
002289485 700__ $$aRivetta, Claudio$$iINSPIRE-00039897$$jJACoW-00004226$$uSLAC
002289485 700__ $$aSalvant, [email protected]$$uCERN
002289485 700__ $$aTurgut, [email protected]$$uSLAC
002289485 700__ $$aWehrle, [email protected]$$uCERN
002289485 773__ $$cTUPIK119$$qIPAC2017$$wC17-05-14$$y2017
002289485 8564_ $$81360278$$s4470231$$uhttps://cds.cern.ch/record/2289485/files/tupik119.pdf
002289485 960__ $$a13
002289485 962__ $$b2263434$$kTUPIK119$$ncopenhagen20170514
002289485 980__ $$aARTICLE
002289485 980__ $$aConferencePaper
002289485 999C6 $$a0-0-0-1-0-0-1$$t2017-09-28 22:29:43$$vInvenio/1.1.2.1260-aa76f refextract/1.5.44$$vcontent.pdf;1
002289485 999C5 $$hH. Damerau et al.$$o1$$rCERN-ACC-2014-0337$$tLHC Injectors Upgrade, Technical Design Report, Vol. I: Protons
002289485 999C5 $$hJ. Fox et al.$$min Proc. IBIC’15, paper WECLA04$$o2$$tWideband Vertical Intra-Bunch Feedback at the SPS — Technology Development, Recent Accelerator Measurements, and Next Steps
002289485 999C5 $$hJ. Dusatko et al.$$min Proc. IPAC’16, paper WEPOR010$$o3$$tRecent Upgrades to the CERN SPS Wideband Intra-bunch Transverse Feedback Processor
002289485 999C5 $$hO. Turgut et al.$$min Proc. IPAC’16, paper THOAA01$$o4$$tIdentification of Intra-bunch Transverse Dynamics for Model-Based Control Purposes at CERN Super Proton Synchrotron
002289485 999C5 $$hC. Rivetta et al.$$min Proc. HB’14, paper THO3AB04$$o5$$tModeling and Feedback Design Techniques for Controlling Intra-Bunch Instabilities at CERN SPS Ring
002289485 999C5 $$01254775$$hJ. M. Cesaratto et al.$$o6$$rSLAC-R-1037$$tSPS Wideband Transverse Feedback Kicker: Design Report
002289485 999C5 $$hM. Wendt$$i978-3-95450-182-3$$mpresented at IPAC’17, Copenhagen, Denmark, May 2017, paper TUPIK053. Proceedings of IPAC2017, Copenhagen, Denmark TUPIK119 06 Beam Instrumentation, Controls, Feedback and Operational Aspects T05 Beam Feedback Systems Copyright©2017CC-BY-3.0andbytherespectiveauthors$$o7$$tA Broadband Transverse Kicker Prototype for the SPS Intra-Bunch Feedback$$y2007