setups 7 (low E1) 4 modules 3rd h. L = 8m 12 modules rf = 20 deg

Slides:



Advertisements
Similar presentations
FEL Beam Dynami cs FEL Beam Dynamics T. Limberg Short Bunches at FLASH.
Advertisements

Ring tuning spread 2 MW beam at 1 GeV – Space charge tune spread about 0.2 (green) – Chromatic tune spread must be controlled by sextupoles (red: beam.
When we simply reduce BC2 energy, Here is a smaller chirper, but with a larger horn (that can be easily reduced with optimization) UNDBEG Energy at BC2=
Nominal and no CSR (R 56-1 = 55 mm, R 56-2 = 59 mm, R 56-3 = 0) L1 phase = 21 deg, V 3.9 = 55 MV CSR OFF BC3 OFF Elegant Tracking  z1 = mm (post.
BC System – Review Options ● BC2 working point (energy-charge-compr.) ● 2BC (rf-rf-bc-rf-bc-rf) ● table: 2BC (rf-rf-bc-rf-bc-rf) dogleg + 2BC (rf-dog-rf-rf-bc-rf-bc-rf)
Cavity Field Maps (TESLA & 3 rd Harmonic Cavity) Undulator Wakes Estimation of CSR Effects for FLASH2HGHG.
1 Bates XFEL Linac and Bunch Compressor Dynamics 1. Linac Layout and General Beam Parameter 2. Bunch Compressor –System Details (RF, Magnet Chicane) –Linear.
First operation of the TTF2 injector with beam Jean-Paul Carneiro DESY Hamburg TESLA COLLABORATION MEETING DESY Hamburg, 16 Sept 2003.
1 Preliminary Analysis of GTF Longitudinal Emittance Experiment D. Dowell SLAC July 18, 2001.
Bunch compressor design for eRHIC Yichao Jing and Vladimir Litvinenko FLS2012, Newport News, VA 3/8/2012.
P. Emma LCLS FAC 12 Oct Comments from LCLS FAC Meeting (April 2004): J. Roßbach:“How do you detect weak FEL power when the.
P. Emma, SLACLCLS FAC Meeting - April 29, 2004 Linac Physics, Diagnostics, and Commissioning Strategy P. Emma LCLS FAC Meeting April 29, 2004 LCLS.
Phase Difference = Phase Difference = 0.05.
ERHIC Main Linac Design E. Pozdeyev + eRHIC team BNL.
Comments from LCLS FAC Meeting (April 2004): J. Rößbach:“How do you detect weak FEL power when the gain is very low (few hundred)?” K. Robinson:“Can you.
E. Bong, SLACLCLS FAC Meeting - April 29, 2004 Linac Overview E. Bong LCLS FAC Meeting April 29, 2004 LCLS.
Beam Dynamic Shifts 2011 C. Behrens, W. Decking, M. Dohlus, H. & D. Edwards, C. Gerth, T. Hellert, T. Limberg, P. Piot, E. Schneidmiller, M. Scholz, M.
22/03/1999A.Blas1 Hollow bunches A. Blas, S. Hancock, S. Koscielniak, M. Lindroos, F. Pedersen, H. Schonauer  Why: to improve space charge related problems.
Modelling of the ALICE Injector Julian McKenzie ASTeC STFC Daresbury Laboratory IOP Particle Accelerators and Beams Group Status and Challenges of Simulation.
TTF2 Start-to-End Simulations Jean-Paul Carneiro DESY Hamburg TESLA COLLABORATION MEETING DESY Zeuthen, 22 Jan 2004.
ASTRA Injector Setup 2012 Julian McKenzie 17/02/2012.
Beam Dynamics and FEL Simulations for FLASH Igor Zagorodnov and Martin Dohlus Beam Dynamics Meeting, DESY.
Optics with SC horizontal vertical BC0BC1BC2 XFEL, design optics.
A bunch compressor design and several X-band FELs Yipeng Sun, ARD/SLAC , LCLS-II meeting.
Accelerator Science and Technology Centre Extended ALICE Injector J.W. McKenzie, B.D. Muratori, Y.M. Saveliev STFC Daresbury Laboratory,
Beam Dynamics Meeting Bolko Beutner, DESY Summary of new FLASH CSR studies Bolko Beutner, DESY Beam Dynamics Meeting
XFEL Beam Dynamics Meeting Bolko Beutner, DESY Velocity Bunching Studies at FLASH Bolko Beutner, DESY XFEL Beam Dynamics Meeting
J. Wu J. Wu working with T.O. Raubenheimer, J. Qiang (LBL), LCLS-II Accelerator Physics meeting April 11, 2012 Study on the BC1 Energy Set Point LCLS-II.
‘S2E’ Study of Linac for TESLA XFEL P. Emma SLAC  Tracking  Comparison to LCLS  Re-optimization  Tolerances  Jitter  CSR Effects.
July LEReC Review July 2014 Low Energy RHIC electron Cooling Jorg Kewisch, Dmitri Kayran Electron Beam Transport and System specifications.
LCLS-II Particle Tracking: Gun to Undulator P. Emma Jan. 12, 2011.
J. Wu J. Wu working with T.O. Raubenheimer LCLS-II Accelerator Physics meeting May 09, 2012 Study on the BC1 Energy Set Point LCLS-II Accel. Phys., J.
The Microbunching Instability in the LCLS-II Linac LCLS-II Planning Meeting October 23, 2013 A. Marinelli and Z. Huang.
HINS Linac Simulations : Benchmarking, Jitter and Stripping. Jean-Paul Carneiro FNAL Accelerator Physics Center Accelerator Physics and Technology Workshop.
PTC-ORBIT issues for PSB simulations V. Forte – E. Benedetto – M. Martini S.c. meeting (18/07/2013)
XFEL Beam Dynamics Meeting Bolko Beutner, DESY First results of micro-bunching and COTR experiments at FLASH Bolko Beutner, Winfried Decking,
Wir schaffen Wissen – heute für morgen PSI, March 2013 Paul Scherrer Institut PSI / DESY / KIT Mini-Workshop on Longitudinal Diagnostics for FELs.
Microbunching Instability and Slice Energy Spread
MAX IV linac overview and scope of automation Sara Thorin.
A single-shot method for measuring fs bunches in linac-based FELs Z. Huang, K. Bane, Y. Ding, P. Emma.
SABER Longitudinal Tracking Studies P. Emma, K. Bane Mar. 1, 2006
A 6 GeV Compact X-ray FEL (CXFEL) Driven by an X-Band Linac
Beam dynamics for an X-band LINAC driving a 1 keV FEL
Spin Precession At CEBAF
Sara Thorin, MAX IV Laboratory
Cutting Beam Horns in BC1
L1S Jitter with AIP Modulator
XFEL Beam Physics 10/30/2015 Tor Raubenheimer.
Longitudinal Diagnostics for start-up
Progress activities in short bunch compressors
XFEL Bunch Compression System Tuning
Muon Inverse Rotation and Acceleration
LCLS Longitudinal Feedback and Stability Requirements
calculation with 107 particles
Simulation Calculations
Two-bunch self-seeding for narrow-bandwidth hard x-ray FELs
Dark current in TESLA linac
LCLS Tracking Studies CSR micro-bunching in compressors
Modified Beam Parameter Range
Linac Physics, Diagnostics, and Commissioning Strategy P
First results of micro-bunching and COTR experiments at FLASH
Linearization of Bunch Compression (2nd order )
Linac Design Update P. Emma LCLS DOE Review May 11, 2005 LCLS.
LCLS Longitudinal Feedback System and Bunch Length Monitor Juhao Wu Stanford Linear Accelerator Center LCLS DOE Review, February 08, 2006 LCLS longitudinal.
Enhanced Self-Amplified Spontaneous Emission
Bunch Compression Experiment in VUV-FEL BC3
some tools for longitudinal phase space
Electron Optics & Bunch Compression
New VUV-FEL Simulation results
JLEIC Ion Integration Goals
Presentation transcript:

setups 7 (low E1) 4 modules 3rd h. L = 8m 12 modules rf = 20 deg on crest + wake of 4 modules & 3rd harm. (8m) + rf of 4 modules & 3rd harm. (8m) long. phase space @ 130 MeV only space charge with rf & wake after dog leg

setups 7 (low E1) 4 modules 3rd h. L = 8m 12 modules rf = 20 deg on crest long. phase space @ 500 MeV before BC1 long. phase space @ 500 MeV after BC1 + wake of 12 modules + wake + rf long. phase space @ 2.4 GeV before BC2 bc1

setups 7 (low E1) 4 modules 3rd h. L = 8m 12 modules rf = 20 deg on crest after bc2 before bc2 after 100 modules after 100 modules

(without self-effects) seems to be much smaller MCAD random with 5 kV energy spread @ 50A  0.5 MeV @ 5 kA uncorr. energy spread (without self-effects) seems to be much smaller than previously assumed new calc. with ASTRA distribution after 100 modules