M. Forster, G. Codner, R. Holtzapple, J. Kern, and E.Tanke

Slides:

Advertisements

Similar presentations

ICA Applied to Long Bunches Jeff Kolski Informal workshop on ICS and High Intensity accelerators Indiana University Los Alamos Nation Laboratory 3/17/10.

Advertisements

Electron cloud tune shift measurements for long trains Tune Shift versus current: Measured the tune shift for 45 and 115 bunch positron trains with 14ns.

E+ Tune Measurements for 4-ns Spaced Bunches Tune Measurements of 4-ns spaced bunches: An update of the strides made using the digital BPM system to measure.

Using Tune Shifts to Evaluate Electron Cloud Effects on Beam Dynamics at CesrTA Jennifer Chu Mentors: Dr. David Kreinick and Dr. Gerry Dugan 8/11/2011REU.

CESR-c Status CESR Layout - Pretzel, Wigglers, solenoid compensation Performance to date Design parameters Our understanding of shortfall Plans for remediation.

45 th ICFA Beam Dynamic Workshop June 8–12, 2009, Cornell University, Ithaca New York ECLOUD Simulations for the Tune Shift Measurements of December.

Turn by turn horizontal and vertical positions at consecutive horizontally focusing quads 8W and 10W. Horizontal motion excited by horizontal shaker.

Wilson Lab Tour Guide Orientation 11 December 2006 CLASSE 1 Focusing and Bending Wilson Lab Tour Guide Orientation M. Forster Mike Forster 11 December.

Low Emittance Tuning in CESR TA D. Rubin Cornell University April 18, 2009.

ECLOUD Calculations of Coherent Tune Shifts for the April 2007 Measurements - This presentation limited to resolving drift/dipole weighting question -

ECLOUD Calculations of Coherent Tune Shifts for the April 2007 Measurements - Thanks to Marco for clarifying the drift/dipole weighting - - Thanks to Gerry.

21 December 2009 ECLOUD Simulations for Measurements of December 2009 / J.A.Crittenden 1/1 ECLOUD Simulations for Measurements of 19/20 December.

CESR Beam-Beam Effects at CESR Mark A. Palmer Cornell University July 14, 2001.

Phase Difference = Phase Difference = 0.05.

45 th ICFA Beam Dynamic Workshop June 8–12, 2009, Cornell University, Ithaca New York ECLOUD Simulations for the Tune Shift Measurements of December.

January 15, 2005D. Rubin - Cornell1 CESR-c Status -Operations/Luminosity December/January vs September/October -Machine studies and instrumentation -Simulation.

Low Emittance Program David Rubin Cornell Laboratory for Accelerator-Based Sciences and Education CesrTA.

BEPCII Transverse Feedback System Yue Junhui IHEP ， Beijing Sep 17 th, 08IMAC.

January 13, 2004D. Rubin - Cornell1 CESR-c BESIII/CLEO-c Workshop, IHEP January 13, 2004 D.Rubin for the CESR operations group.

Witness Bunch Experimental Studies at CESR-TA Robert Holtzapple Alfred University/Cal Poly San Luis Obispo.

E- Cloud Machine Studies-Systematic Study of Single Bunch Tunes I. Pinger timing effect on single bunch tunes II. Vertical/horizontal pinger high voltage.

Recent electron cloud studies at CESR David Rice Cornell University Laboratory for Elementary-Particle Physics.

Storage ring optics characterization – the basics

November 14, 2004First ILC Workshop1 CESR-c Wiggler Dynamics D.Rubin -Objectives -Specifications -Modeling and simulation -Machine measurements/ analysis.

HERA Operation 2004 M. Bieler, -MPY- PRC, Mai Performance Improvements in Remaining Problems - Improvement Program - Schedule 2004.

1 Proposal for a CESR Damping Ring Test Facility M. Palmer & D.Rubin November 8, 2005.

BEPCII Transverse Feedback System Yue Junhui Beam Instrumentation Group IHEP ， Beijing.

The SPS as a Damping Ring Test Facility for CLIC March 6 th, 2013 Yannis PAPAPHILIPPOU CERN CLIC Collaboration Working meeting.

Analyze of Synchrotron Sidebands with ICA Honghuan Liu Indiana University March 15 th 2012.

February 5, 2005D. Rubin - Cornell1 CESR-c Status -Operations/Luminosity -Machine studies -Simulation and modeling -4.1GeV.

BPM and BSM Tune Measurements August 2, 2007 B. Cerio, R. Holtzapple.

CESR as Light Source David Rubin for the CESR Operations Group Cornell University Laboratory for Elementary-Particle Physics.

网上报账系统包括以下业务：日常报销差旅费报销借款业务 1. 填写报销内容 2. 选择支付方式（或冲销借款） 3. 提交预约单 4. 打印预约单并同分类粘贴好的发票一起送至财务处预约报销步骤：网上报账系统薪酬发放管理系统财务查询系统 1.

CESR-c Plans for CESR (or Life Without CLEO) Mark A. Palmer David L. Rubin Second ILC Accelerator Workshop August 18, 2005.

45 th ICFA Beam Dynamic Workshop June 8–12, 2009, Cornell University, Ithaca New York Jim Crittenden Cornell Laboratory for Accelerator-Based Sciences.

Jim Crittenden CHESS Simulation Working Group 30 March 2015

Status of the ASTRID2 facility

Electron Cloud R&D at Cornell ILCDR08--7/8/08

e- Cloud Machine Studies-Tune Shift Studies

Electron Cloud Meeting

Electron Cloud Meeting

Why Study Electron Clouds? Methods and Tools to Study Electron Clouds

Electron Cloud Studies at CESR-c and CesrTA

Recent Electron Cloud Studies at CESR and Future Plans

e-/e+ Vertical beam size with 6 Wigglers Low and Off

e+/e- Vertical Beam Dynamics during CHESS Operation-Part II

Status and Plan for the PEP-II Lattices

CASA Collider Design Review Retreat Other Electron-Ion Colliders: eRHIC, ENC & LHeC Yuhong Zhang February 24, 2010.

M. Tigner, R. Helms, M. Palmer, D. Rubin, D. Sagan Cornell University

e+ Vertical Beam Size during CESR-c Collisions

e+/e- Vertical Beam Size during CESR-c Collisions

Electron cloud studies at CESR

Study of Fast Ions in CESR

e-/e+ Vertical Beam Dynamics with 6 and 12Wigglers On

e- tunes-witness bunch 42

Damping Ring parameters for the new accelerating structure

e+ Vertical Beam Size during CESR-c Collisions

G. Codner, E. Tanke, M. Palmer Cornell University

e- Cloud Studies-Tune Studies with 45 Bunch Trains

Beam Size Flip-Flop Measurements

CHESS energy, 9x6 positrons and electrons, initial measurement

e+/e- Vertical Beam Size during CESR-c Collisions

Preliminary Analysis of April 24, 2006 CESR Bunch Measurements

e+ tunes-witness bunch 42

Proposal for a CESR Damping Ring Test Facility

M. Forster, G. Codner, R. Holtzapple, J. Kern, and E.Tanke

Sawtooth effect in CEPC PDR/APDR

CHESS energy, 9x6 electrons and positrons, coupling tests

Alejandro Castilla CASA/CAS-ODU

Cooling of C6+ ion beam with pulsed electron beam

Presentation transcript:

M. Forster, G. Codner, R. Holtzapple, J. Kern, and E.Tanke CHESS Differential Coupling and Vertical Beam Size Study Turn-by-turn results M. Forster, G. Codner, R. Holtzapple, J. Kern, and E.Tanke October 24, 2006

Positrons 9x6 e+ & e-Ie+=3.7mA/bunch Ie-=4.2mA/bunch File: 854 Measurement test: HEP 112899

FFT of e+ parameters 9x6 e+ & e-Ie+=3.7mA/bunch Ie-=4.2mA/bunch File: 854 Measurement test: HEP 112899 FFT of e+ vertical position Peak @~244kHz FFT of e+ sv

e+ Tunes 9x6 e+ & e- Ie+=3.7mA/bunch Ie-=4.2mA/bunch File: 542 Measurement test: HEP 112899

Electrons 9x6 e+ & e-Ie+=3.7mA/bunch Ie-=4.2mA/bunch File: 853 Measurement test: HEP 112899

FFT of e- parameters 9x6 e+ & e-Ie+=3.7mA/bunch Ie-=4.2mA/bunch File: 853 Measurement test: HEP 112899 FFT of e- vertical position-Peaks @~241 and ~254kHz FFT of e- sv Peak @~241kHz

e- Tunes 9x6 e+ & e- Ie+=3.7mA/bunch Ie-=4.2mA/bunch File: 543 Measurement test: HEP 112899

Positrons 9x6 e+ Only Ie+=3.9mA/bunch SL sv=160mm (858) SL sv=196mm (861) SL sv=160mm (863)

FFT of e+ vertical position 9x6 e+ Only Ie+=3.9mA/bunch Files: 858, 861, 863 HEP 112857 File:858 Peak@~240kHz Corrected 112844 File: 863 Peak@~240kHz Mangled 112843 File: 861 Peak@~240kHz

FFT of e+ sv 9x6 e+ Only Ie+=3.9mA/bunch Files: 858, 861, 863 HEP 112857 File:858 Corrected 112844 File: 863 Mangled 112843 File: 861

e+ Tunes 9x6 e+ Only Ie+=3.9mA/bunch File: 547, 548, 549

Electrons 9x6 e+ & e-Ie+=3.9mA/bunch Ie-=4.3mA/bunch Files: 868, 871, 875 SL sv=171mm (868) SL sv=172mm (871) SL sv=???mm (875)

FFT of e- vertical position 9x6 e- & e+ Ie-=4.3mA/bunch Files: 868, 871, 875 HEP 112899 File:868 Mangled 112843 File: 871 Corrected 112844 File: 875

FFT of e- sv 9x6 e- & e+ Ie-=4.3mA/bunch Ie+=3.9mA/bunch Files: 868, 871, 875 HEP 112899 File:868 Mangled 112843 File: 871 Corrected 112844 File: 875

e- Tunes 9x6 e+ & e-Ie+=3.9mA/bunch Ie-=4.3mA/bunch Files: 551, 553, 555

Positrons 9x6 e+ & e-Ie+=3.9mA/bunch Ie-=4.3mA/bunch Files: 867, 872, 876 SL sv=163mm (867) SL sv=182mm (872) SL sv=???mm (876)

FFT of e+ vertical position 9x6 e- & e+ Ie-=4.3mA/bunch Files: 833, 841, 837 HEP 112899 File:867 Mangled 112843 File: 872 Corrected 112844 File: 876

FFT of e+ sv 9x6 e- & e+ Ie-=4.3mA/bunch Ie+=3.9mA/bunch Files: 867, 872, 876 HEP 112899 File:867 Corrected 112844 File: 876 Mangled 112843 File: 872

e+ Tunes 9x6 e+ & e-Ie+=3.9mA/bunch Ie-=4.3mA/bunch Files: 550, 552, 554

Positrons 9x6 e+ & e-Ie+=3.9mA/bunch Ie-=4.3mA/bunch Files: 880 SL sv=179mm RF phase change

FFT of e+ parameters 9x6 e+ & e-Ie+=3.9mA/bunch Ie-=4.3mA/bunch File: 880 RF Phase Change FFT of e+ vertical position FFT of e+ sv

e+ Tunes 9x6 e+ & e-Ie+=3.9mA/bunch Ie-=4.3mA/bunch File: 556 RF Phase Change

Electrons 9x6 e+ & e-Ie+=3.9mA/bunch Ie-=4.3mA/bunch Files: 879 SL sv=192mm RF phase change

FFT of e- parameters 9x6 e+ & e-Ie+=3.9mA/bunch Ie-=4.3mA/bunch File: 879 RF Phase Change FFT of e- vertical position FFT of e- sv

e- Tunes 9x6 e+ & e-Ie+=3.9mA/bunch Ie-=4.3mA/bunch File: 557 RF Phase Change