Generation and application of sub fs, ultra high brightness, multi GeV electron beams
|
|
- Horatio Wright
- 5 years ago
- Views:
Transcription
1 Generation and application of sub fs, ultra high brightness, multi GeV electron beams J.B. Rosenzweig UCLA Dept. of Physics and Astronomy X ray Science at the Femtosecond to Attosecond Frontier UCLA, May 18, 2009
2 Ultra short XFEL pulses Investigations at atomic electron spatio temporal scales Angstroms nanometers (~Bohr radius) Femtoseconds (electronic motion, Bohr period) 100 fsec accessible using standard techniques Many methods proposed for the fsec frontier Slotted spoiler; ESASE; two stage chirped pulse Unsatisfactory (noise pedestal, low flux, etc.) Still unproven Use clean ultra short electron beam Myriad of advantages in FEL and beam physics Robust in application: XFEL, coherent optical source, beyond
3 The clean path: ultra low charge electron beam Excellent phase space ( and ) Very low emittance Highly compressible Unprecedented high brightness Ultra short high brightnss beam in FEL Bunch ~ cooperation length; super radiant single spike Short cooperation length; sub femtosecond pulse Pedestal free ultra short pulse Mitigate collective effects dramatically CSR instability Undulator beam pipe wakes
4 Ultra high brightness beams: How? Brightness B = 2I ε n 2 Q σ t ε n 2 Low Q in injector: shorter σ t, smaller ε Velocity bunching at low energy, recover I Chicane bunching (1 or 2 stages) The rules change much in our favor Low charge makes all manipulations easier Higher brightness gives new possibilities, design application with open imagination Illustrate with original example: SPARX (2007)
5 Photoinjector scaling J.B. Rosenzweig and E. Colby, Advanced Accelerator Concepts p. 724 (AIP Conf. Proc. 335, 1995). Beam at lower energy is single component relativistic plasma Preserve optimized dynamics: change Q, keeping plasma frequency (n, aspect ratio) same Dimensions scale σ Q 1/ 3 Shorter beam i Emittances: At low Q, ε x,th dominates (Ferrario WP, SPARC/LCLS) ε n ( mm-mrad) = a 1 Q( nc) 2 / 3 + a 2 Q( nc) 4 / 3 + a 3 Q( nc) 8 / Q( nc) 1/ 3 ( mm-mrad) a 1 = 0.11 a 2 = 0.18 a 3 = 0.23
6 Velocity bunching Enhance current at low energy, avoid bending Inject near zero crossing Apply optimized focusing, manage ε evolution Longitudinal phase space schematic for velocity bunching
7 VB example: SPARX (2007), 1 pc σ x (mm) ε n (mm-mrad) z (cm) σ z (mm) z (cm) - ε growth manageable - 1 order of magnitude compression σ ζ 9 µm z (cm)
8 Thermalized Longitudinal Phase Space Space charge dominated longitudinal focus FLASH case (1 pc, L-band) Plasma type Q 1/3 scaling (original SPARX scenario) σ δp,th 30 Q( pc) 1/ 3 ( ) 1/ 3 [ ] kev/c σ z = 9 [ Q pc ] µm Results focusing dependent Better compression with lower focusing
9 Chicane Compression: the Picture Run off crest in linac, chirp longitudinal PS Remove chirp with chicane compressor Long beams not easy to compress, large longitudinal ε due to RF curvature ε ζ,rms = k RF 2 σ z 3 2
10 Chicane Compression by the Numbers Chicane operation unchanged from standard λ R 56 tan φ RF 0 k RF σ ζ <<1 2π δp th p 0 <<k RF σ ζ cot φ 0 Final bunch length/initial σ ζ * σ ζ = Dominated by thermal type spread from VB RF curvature effects negligible for Q<10 pc In low Q limit, SPARX scenario: ( ) 1 k 2 ( RFσ ζ ) 4 2 +σ δp,th ( ) 4 2 +σ δp,th + ( k RF σ ζ ) 2 cot 2 ( φ 0 ) σ δp,th k RF σ ζ 1 2 k RFσ ζ σ ζ * σ δp,th k RF cot φ 0 ( ) λ RF m ( )cot φ 0 ( )Q pc p 0 ( MeV)cot φ 0 ( ). ( ) 1/ 3 ( )
11 The original goal: single spike XFEL operation 1D dimensionless gain parameter 1D gain length ρ 1D = JJ ( K rms)k rms k p 4k u L g,1d = Cooperation length Single spike operation 4π 2 / 3 λ u 3ρ 1D L c,1d = 4π λ r σ b,ss < 2πL c,1d = 2 3ρ 1D λ r 3ρ 1D
12 Numerical example: INFN LNF Take 2 GeV operation, standard SPARC undulator, λ u =2.8 cm Peak current I=2 ka, Estimate single spike condition: σ b,ss = 0.48 µm (1.6 fsec) Note: with ultra small Q, ρ is enhanced Spike is a bit shorter FEL gain better ρ 1D =
13 Example: SPARX (3/2007) 2 GeV just before undulator Need nm σ * ζ 480 Choose to accelerate 23 forward of crest Deduce upstream beam of σ ζ = 9 µm Must produce from velocity buncher Check consistency with energy spread σ δp cot( φ 0 )( k z σ ζ ) << ρ 1D We have σ δp << ρ 1D ( > ) Final (full) energy compression OK (not for LCLS )
14 Low charge working point Velocity bunching gives σ ζ σ 0 Q nc Need σ 0 10σ ζ 90 µm (0.3 psec) Not that short factor of 10 below present Thus, work with 10 3 smaller Q, or 1 pc Emittance > compensated value Growth in velocity buncher Extremely high brightness beam predicted! ( ) 1/ 3
15 Beam simulations SPARX 1 pc case Summary (3/2007, UCLA PARMELA) Charge 1 pc (6.2E6 electrons) Laser pulse length (full) 1 psec (280 fsec rms) Gun maximum on-axis electric field 110 MV/m Average traveling wave section field 13.5 MV/m Initial laser beam radius (full) 100 microns Thermal emittance mm-mrad Emittance after velocity bunching mm-mrad Final bunch length (rms) 9 m (28 fsec) Energy after velocity bunching section 17.9 MeV Final relative momentum spread 0.31%
16 Compressed beam at SPARX I (A) SPARX example, compress at 2 GeV, σ δp = << ρ FEL Compressor: R cm θ b = 25 mrad Analytical est. of growth in ε, σ δp due to CSR: Δσ δp 10 5 Δε n m-rad Both consistent with simulation With I=260 A, and B = A/m 2 Two orders of magnitude enhanced! t (fsec) ε n = m-rad
17 Genesis simulation: SPARX (3/2007 case) Standard undulator, focusing Start to end from PARMELA/Elegant Do not take advantage of lower ε by changing β (must worry about) diffraction "Z R "= 4πσ x 2 / λ r = 83 cm Single spike operation
18 FEL peak power, profile evolution z Saturation in <30 m ζ Extremely clean pulse Single spike past saturation
19 Power profile Current profile FEL power profile 220 MW peak power (10 below 1 nc design) <1 femtosecond rms pulse. March 2007, I was convinced Shorter than electron beam
20 Spectral properties Nearly Fourier transform limited at onset of saturation σ ω σ t =1.3
21 SPARX design: new regimes Explore velocity bunching optimization Higher charge cases Easier beam measurements More photons for users Examine tolerance issues in realistic design context Many similarities, lessons for PSI XFEL case
22 Push to shorter pulses at SPARX (lowest charge) Q=1 pc Beam transverse size, emittance Beam length during velocity bunching Study 1 and 10 pc case. Use LANL PARMELA (standardization) Relax focusing in velocity bunching, lower ε growth, shorter beam For 1 pc, σ z only 4.7 µm after velocity bunching
23 Push to shorter pulses at SPARX (lowest charge) Q=1 pc case Study 1 and 10 pc case. Relax focusing in velocity bunching, lower ε growth, shorter beam For 1 pc, σ z only 4.7 µm after velocity bunching Use June 2008 version of SPARX lattice compression no longer at end, at 1.2 GeV (Final 2.1 GeV) Much higher final currents, ε nx m - rad some CSR emittance growth, for 1 pc Longitudinal tails, higher peak brightness
24 FEL performance at 1 pc Single spike with some structure > 1 GW peak power at saturation (30 m) 480 attosecond rms pulse at 2 nm z (m) ΔωΔt = 1.67 s (µm) λ (nm)
25 Higher Q SPARX case: 10 pc Longitudinal phase space, 10 pc Current profile; some pedestal visible Put back beam power, X ray photons Velocity bunch to 10.3 µm rms Still space dominated charge scaling ~Q 1/3 1 fs pulse Large emittance growth ε n = m - rad
26 SPARX FEL at 10 pc z (m) s (µm) 10 GW peak FEL power Saturation at 20 m (v. high brightness) Quasi single spike Lower brightness=longer cooperation length 4x10 11 photons, good for many applications
27 Practicality : tolerance studies Concentrate on 1 pc case, most challenging Look at various jitter errors Injection (laser) timing Injection offset Main linac phase, voltage Examine effects on Arrival time Mean energy Emittance Bunch length
28 Injector tolerances Model photoinjector with LANL PARMELA Emphasize laser errors Large injection timing error Pointing jitter Set tolerances compatible with linac, chicane Velocity bunching makes life easier
29 Laser transverse offsets at cathode Focusing in injector set for space charge dominated beam Too strong for centroid (behaves as 1 particle) Offset doesn t demagnify per acceleration (only ~0.5) Must control to fraction of final σ x (70 µm) Effective pointing jitter less than 20 micron on cathode Solution: relay image an aperture Solution: use over illuminated high QE cathode?
30 Injection Timing Studies For standard laser timing jitters of 0.2 psec (~degree at 2856 MHz) rms, all these parameters are acceptable
31 Time of arrival jitter Velocity bunching mitigates timing jitter (w.r.t. RF clock) greatly. Laser timing jitter of 0.2 psec produces 1.5 fsec (!) jitter in arrival time at injector exit Want pump-probe timing? Use e-beam radiation; time stamping
32 Linac and Chicane Jitter Tolerances Δσ z σ z0 = σ z σ zo σ zo <10% ΔE = E E 0 0o < 0.05% E 0 E 0o ΔT a = T a T a 0 <1fs Constraints Change in σ z <10% Experimentally negligible Change in mean beam energy < 0.05% Effect on FEL frequency smaller than BW Change in mean time of flight less than 1 fsec Experimentally negligible Initial condition tolerances set by PARMELA injector studies, used for Elegant input
33 Methodology: quick jitter estimation Apply overall φ shift to analyze performance due to laser gun timing error Apply initial E errors (±0.25MeV) also generated by laser injection error Apply individual RF phase (φ) and voltage (V) errors and analyze performance Establish error tolerance set apply an error distribution simulate many times for statistical performance
34 Injector Timing/Energy Errors Overall φ shift was applied to each linac module VB produces E error at linac entrance Tolerances easily satisfied with VB system \
35 Statistical Runs 2 parameters: RF phase (φ) and voltage (V) Assume uncorrelated jitter between linac modules Choose tightest tolerances, apply statistical error distribution to all elements Error set random, Gaussian distributed (± 3σ) Voltage error of interest ΔV/V=0.4% Phase error to investigate is Δφ=0.25 Repeated (400) ELEGANT simulation set
36 Summary of statistical analysis Δσ z σ z % ( ) All constraints satisfied easily ΔE E ΔT a (fsec)
37 Extension to LCLS case 1 pc does not give quasi single spike operation Beam too long, need to scale with λ/ρ Use 0.25 pc (1.5M e ), obtain ε n =0.033 mm mrad Yet higher brightness; saturation expected in 60 m σ E / E = Over 350A peak
38 LCLS Genesis results Deep saturation achieved Minimum rms pulse: 150 attosec Quasi-single spike, 2 GW σ ω σ t 1.1
39 Not all shots single spike z ζ
40 Alternative scenario: new undulator for very short λ operation Use high brightness beam to push to short wavelength LCLS example Shorter period undulator Shorter still soon available K u 1 λ u (cm) 1.5 β (m) 2-6 U (GeV) 4-14
41 Progress at SLAC on low Q, high brightness 20 pc case measured Diagnostic limit? Excellent emittance after injector 0.15 µm (predicted minimum 0.1 µm) No velocity bunching Chicane compression As low as 2 fs rms, with ε growth to 0.4 µm Measurement resolution inadequate See talks by Z. Huang, others from SLAC
42 Current UCLA R&D for small Q case Blowout regime at PEGASUS Blown out ellipsoid observed Thermal emittance limits Highly linear longitudinal phase space See Musumeci talk Ellipsoidal bunch distribution observed in blowout regime with RF deflector at PEGASUS Blowout regime single shot longitudinal phase space with RF deflector at PEGASUS, with simulation (right)
43 Low Q at SPARC Precursor to SPARX work Velocity bunching measurements w/rf deflector Factor 3 compression observed without ε growth See Ferrario talk
44 Ultra short beam application: coherent, sub cycle radiation Coherent transition radiation Non destructive: coherent edge radiation (CER) Total emitted CER spectrum (BNL ATF, UCLA compressor), measured compared to QUINDI. Coherent THz pulses Coherent optical, sub-cycle pulse (FLASH 1 pc case). Unique source at these wavelengths Would like to try this at LCLS Angular distribution of far field radiation, by polarization: measured in color, QUINDI in contours
45 Alternatives on the horizon: plasma accelerators LWFA gives GeV, fs electron beams: Table-top XFEL? undulator >10 TW LWFA yields GeV beams in cm Beam quality needs to be controlled Naturally gives fs pulses Can this be preserved? Hot topic Projects in EU, USA (Talk by M. Fuchs)
46 Table top XFEL work LMU MPQ (Garching) centered collaboration (BESSY, LBNL, UCLA, etc.) UCLA collaboration on beam transport and advanced undulator Need short λ u high field undulator for GeV important for linac based sources too Use undulator at SPARX? Lase at 6.5 Å (smaller by almost 5) Saturation at 200 MW (2E9 γ s), in <10 m (35 m in standard operation) Hybrid undulator: Pr-based, with SmCo sheath 9 Apply mm with period, LCLS with energy up to Å T
47 Ultra short beam application: IR wavelength PWFA Ultra high brightness, fs beams impact HEP also! Use 20 pc beam (LCLS) in high n plasma (>7E19/cc) Scaling to moderate blowout; more efficient >700 GV/m fields (!) Forming collaboration, looking at possibilities now OOPIC simulation of LCLS case
48 How to proceed? Collaborations (California to the World) UCOP proposal (LBNL UCB UCLA) NSF PIRE International Proposal (UCLA centered) Prof. William Barletta, Massachusetts Institute of Technology (also UCLA, visiting appt.), and Director, US Particle Accelerator School Dr. Vitaly Yakimenko, Director, Accelerator Test Facility, Brookhaven National Laboratory Prof. Joseph Bisognano, Director, University of Wisconsin Synchrotron Radiation Center and University of Wisconsin Dept. of Eng. Physics Prof. Luigi Palumbo, Responsible: SPARC High Brightness Beam Facility and SPARX X-ray FEL, University of Rome La Sapienza and INFN-LNF (Italy) Dr. Stephen Milton, Responsible: FERMI X-ray FEL Sincrotrone Trieste (Italy), also Argonne National Laboratory Dr. Sven Reiche, Head, FEL Physics for PSI-XFEL, Paul Scherrer Institute (Switzerland), also UCLA, Dept. of Physics and Astronomy Prof. Avraham Gover, Ludwig Jokel Chair of Electronics in Tel-Aviv University, Dept. of Physical Electronics, head the Israeli Knowledge Center for Radiation Sources and Applications (Israel) Dr. Luca Giannessi, Staff Scientist, Head, FEL Physics SPARC and SPARX FELs, ENEA-Frascati (Italy) Prof. Joerg Rossbach, leader of accelerator physics group, University of Hamburg Technical head FLASH VUV FEL, DESY (Germany), Dr. Frank Stephan, Head, PITZ Photoinjector Laboratory, DESY-Zeuthen (Germany) Dr. Thorsten Kamps, Staff Scientist, BESSY-Berlin (Germany), Dr. Wim Leemans, Director, l OASIS Laser Accelerator Lab, Lawrence Berkeley National Laboratory Prof. Florian Gruner, project leader MAP Cluster of Excellence for Table-Top Free-Electron-Lasers, project leader in ELI, Ludwig Maxillian Univ./MPQ (Germany) Dr. John Corlett, Deputy Division Director AFRD, Program Head, Center for Beam Physics, Lawrence Berkeley National Laboratory Prof. Tang Chuanxiang, Director, Department of Engineering Physics; Head, Accelerator Laboratory, Tsinghua Univ. (China)
49 Conclusions; future work Very promising options with very low charge Excellent emittance and gain Smaller charge, more photons/electron Can allow shorter undulators, FEL λ What do users want? Do we need single spike or just ultra fast? Important to exploit brightness? Femtoseconds? Attoseconds Excellent beam scenario, but All measurements change Low charge diagnostics needed; experience at UCLA Pegasus Coherent optical signals everywhere. Signal needs to be interpreted Background noise Dark current has much more charge; use dual deflector/collimator? Much more experimental work needed E.g., photoinjector blowout regime Use of FEL in single spike (SPARC, FLASH, LCLS) OPTIMIZE DESIGN from the ground up!
X-ray Free-electron Lasers
X-ray Free-electron Lasers Ultra-fast Dynamic Imaging of Matter II Ischia, Italy, 4/30-5/3/ 2009 Claudio Pellegrini UCLA Department of Physics and Astronomy Outline 1. Present status of X-ray free-electron
More informationGeneration of Ultra-Short, High Brightness Electron Beams for Single Spike SASE FEL Operation
SPARC-BD-07/004 10 October 2007 Generation of Ultra-Short, High Brightness Electron Beams for Single Spike SASE FEL Operation J. B. Rosenzweig, G. Andonian, M. Dunning, A. Fukusawa, E. Hemsing, P. Musumeci,
More informationLinac Driven Free Electron Lasers (III)
Linac Driven Free Electron Lasers (III) Massimo.Ferrario@lnf.infn.it SASE FEL Electron Beam Requirements: High Brightness B n ( ) 1+ K 2 2 " MIN r #$ % &B! B n 2 n K 2 minimum radiation wavelength energy
More informationExcitements and Challenges for Future Light Sources Based on X-Ray FELs
Excitements and Challenges for Future Light Sources Based on X-Ray FELs 26th ADVANCED ICFA BEAM DYNAMICS WORKSHOP ON NANOMETRE-SIZE COLLIDING BEAMS Kwang-Je Kim Argonne National Laboratory and The University
More informationExcitements and Challenges for Future Light Sources Based on X-Ray FELs
Excitements and Challenges for Future Light Sources Based on X-Ray FELs 26th ADVANCED ICFA BEAM DYNAMICS WORKSHOP ON NANOMETRE-SIZE COLLIDING BEAMS Kwang-Je Kim Argonne National Laboratory and The University
More informationShort Pulse, Low charge Operation of the LCLS. Josef Frisch for the LCLS Commissioning Team
Short Pulse, Low charge Operation of the LCLS Josef Frisch for the LCLS Commissioning Team 1 Normal LCLS Parameters First Lasing in April 10, 2009 Beam to AMO experiment August 18 2009. Expect first user
More informationLCLS Accelerator Parameters and Tolerances for Low Charge Operations
LCLS-TN-99-3 May 3, 1999 LCLS Accelerator Parameters and Tolerances for Low Charge Operations P. Emma SLAC 1 Introduction An option to control the X-ray FEL output power of the LCLS [1] by reducing the
More informationFemto-second FEL Generation with Very Low Charge at LCLS
Femto-second FEL Generation with Very Low Charge at LCLS Yuantao Ding, For the LCLS commissioning team X-ray Science at the Femtosecond to Attosecond Frontier workshop May 18-20, 2009, UCLA SLAC-PUB-13525;
More informationLinac Based Photon Sources: XFELS. Coherence Properties. J. B. Hastings. Stanford Linear Accelerator Center
Linac Based Photon Sources: XFELS Coherence Properties J. B. Hastings Stanford Linear Accelerator Center Coherent Synchrotron Radiation Coherent Synchrotron Radiation coherent power N 6 10 9 incoherent
More informationFURTHER UNDERSTANDING THE LCLS INJECTOR EMITTANCE*
Proceedings of FEL014, Basel, Switzerland FURTHER UNDERSTANDING THE LCLS INJECTOR EMITTANCE* F. Zhou, K. Bane, Y. Ding, Z. Huang, and H. Loos, SLAC, Menlo Park, CA 9405, USA Abstract Coherent optical transition
More informationLinac optimisation for the New Light Source
Linac optimisation for the New Light Source NLS source requirements Electron beam requirements for seeded cascade harmonic generation LINAC optimisation (2BC vs 3 BC) CSR issues energy chirp issues jitter
More informationCharacterization of an 800 nm SASE FEL at Saturation
Characterization of an 800 nm SASE FEL at Saturation A.Tremaine*, P. Frigola, A. Murokh, C. Pellegrini, S. Reiche, J. Rosenzweig UCLA, Los Angeles, CA 90095 M. Babzien, I. Ben-Zvi, E. Johnson, R. Malone,
More informationBeam Dynamics in a Hybrid Standing Wave- Traveling Wave Photoinjector
Beam Dynamics in a Hybrid Standing Wave- Traveling Wave Photoinjector J. Rosenzweig, D. Alesini, A. Boni, M. Ferrario, A. Fukusawa, A. Mostacci $, B. O Shea, L. Palumbo $, B. Spataro UCLA Dept. of Physics
More informationSimulations of the IR/THz Options at PITZ (High-gain FEL and CTR)
Case Study of IR/THz source for Pump-Probe Experiment at the European XFEL Simulations of the IR/THz Options at PITZ (High-gain FEL and CTR) Introduction Outline Simulations of High-gain FEL (SASE) Simulation
More informationPAL LINAC UPGRADE FOR A 1-3 Å XFEL
PAL LINAC UPGRADE FOR A 1-3 Å XFEL J. S. Oh, W. Namkung, Pohang Accelerator Laboratory, POSTECH, Pohang 790-784, Korea Y. Kim, Deutsches Elektronen-Synchrotron DESY, D-603 Hamburg, Germany Abstract With
More informationGeneration and characterization of ultra-short electron and x-ray x pulses
Generation and characterization of ultra-short electron and x-ray x pulses Zhirong Huang (SLAC) Compact XFEL workshop July 19-20, 2010, Shanghai, China Ultra-bright Promise of XFELs Ultra-fast LCLS Methods
More informationOptimum beam creation in photoinjectors using spacecharge expansion II: experiment
Optimum beam creation in photoinjectors using spacecharge expansion II: experiment J. Rosenzweig, A. Cook, M. Dunning, R.J. England, G. Travish, UCLA P. Musumeci, C. Vicario, D. Filippetto, M. Ferrario,
More informationVARIABLE GAP UNDULATOR FOR KEV FREE ELECTRON LASER AT LINAC COHERENT LIGHT SOURCE
LCLS-TN-10-1, January, 2010 VARIABLE GAP UNDULATOR FOR 1.5-48 KEV FREE ELECTRON LASER AT LINAC COHERENT LIGHT SOURCE C. Pellegrini, UCLA, Los Angeles, CA, USA J. Wu, SLAC, Menlo Park, CA, USA We study
More informationLOLA: Past, present and future operation
LOLA: Past, present and future operation FLASH Seminar 1/2/29 Christopher Gerth, DESY 8/5/29 FLASH Seminar Christopher Gerth 1 Outline Past Present Future 8/5/29 FLASH Seminar Christopher Gerth 2 Past
More informationSimulations of the IR/THz source at PITZ (SASE FEL and CTR)
Simulations of the IR/THz source at PITZ (SASE FEL and CTR) Introduction Outline Simulations of SASE FEL Simulations of CTR Summary Issues for Discussion Mini-Workshop on THz Option at PITZ DESY, Zeuthen
More informationLCLS-II SCRF start-to-end simulations and global optimization as of September Abstract
SLAC National Accelerator Lab LCLS-II TN-17-4 February 217 LCLS-II SCRF start-to-end simulations and global optimization as of September 216 G. Marcus SLAC, Menlo Park, CA 9425 J. Qiang LBNL, Berkeley,
More informationExperimental Optimization of Electron Beams for Generating THz CTR and CDR with PITZ
Experimental Optimization of Electron Beams for Generating THz CTR and CDR with PITZ Introduction Outline Optimization of Electron Beams Calculations of CTR/CDR Pulse Energy Summary & Outlook Prach Boonpornprasert
More informationX-Band RF Harmonic Compensation for Linear Bunch Compression in the LCLS
SLAC-TN-5- LCLS-TN-1-1 November 1,1 X-Band RF Harmonic Compensation for Linear Bunch Compression in the LCLS Paul Emma SLAC November 1, 1 ABSTRACT An X-band th harmonic RF section is used to linearize
More informationThe VISA II Experiment
The VISA II Experiment A study in electron beam dynamics and high gain, ultra short pulses in SASE FEL. Gerard Andonian PBPL UCLA DoE Review May 18, 2004 Experiment Timeline VISA I Re-commissioning FEL
More informationExpected properties of the radiation from VUV-FEL / femtosecond mode of operation / E.L. Saldin, E.A. Schneidmiller, M.V. Yurkov
Expected properties of the radiation from VUV-FEL / femtosecond mode of operation / E.L. Saldin, E.A. Schneidmiller, M.V. Yurkov TESLA Collaboration Meeting, September 6-8, 2004 Experience from TTF FEL,
More informationSPARCLAB. Source For Plasma Accelerators and Radiation Compton. On behalf of SPARCLAB collaboration
SPARCLAB Source For Plasma Accelerators and Radiation Compton with Laser And Beam On behalf of SPARCLAB collaboration EMITTANCE X X X X X X X X 2 BRIGHTNESS (electrons) B n 2I nx ny A m 2 rad 2 The current
More informationASTRA simulations of the slice longitudinal momentum spread along the beamline for PITZ
ASTRA simulations of the slice longitudinal momentum spread along the beamline for PITZ Orlova Ksenia Lomonosov Moscow State University GSP-, Leninskie Gory, Moscow, 11999, Russian Federation Email: ks13orl@list.ru
More informationDiagnostic Systems for Characterizing Electron Sources at the Photo Injector Test Facility at DESY, Zeuthen site
1 Diagnostic Systems for Characterizing Electron Sources at the Photo Injector Test Facility at DESY, Zeuthen site Sakhorn Rimjaem (on behalf of the PITZ team) Motivation Photo Injector Test Facility at
More informationAccelerator Physics Issues of ERL Prototype
Accelerator Physics Issues of ERL Prototype Ivan Bazarov, Geoffrey Krafft Cornell University TJNAF ERL site visit (Mar 7-8, ) Part I (Bazarov). Optics. Space Charge Emittance Compensation in the Injector
More informationObservation of Ultra-Wide Bandwidth SASE FEL
Observation of Ultra-Wide Bandwidth SASE FEL Gerard Andonian Particle Beam Physics Laboratory University of California Los Angeles The Physics and Applications of High Brightness Electron Beams Erice,
More informationCompressor and Chicane Radiation Studies at the ATF. Gerard Andonian, UCLA High Power Workshop January 14-16, 2009 UCLA
Compressor and Chicane Radiation Studies at the ATF Gerard Andonian, UCLA High Power Workshop January 14-16, 2009 UCLA Collaboration UCLA PBPL G. Andonian, A. Cook, M. Dunning, E. Hemsing, A. Murokh, S.
More informationEcho-Enabled Harmonic Generation
Echo-Enabled Harmonic Generation G. Stupakov SLAC NAL, Stanford, CA 94309 IPAC 10, Kyoto, Japan, May 23-28, 2010 1/29 Outline of the talk Generation of microbunching in the beam using the echo effect mechanism
More informationSPARCLAB. Source For Plasma Accelerators and Radiation Compton with Laser And Beam
SPARCLAB Source For Plasma Accelerators and Radiation Compton with Laser And Beam EMITTANCE X X X X X X X X Introduction to SPARC_LAB 2 BRIGHTNESS (electrons) B n 2I nx ny A m 2 rad 2 The current can be
More informationBeam Echo Effect for Generation of Short Wavelength Radiation
Beam Echo Effect for Generation of Short Wavelength Radiation G. Stupakov SLAC NAL, Stanford, CA 94309 31st International FEL Conference 2009 Liverpool, UK, August 23-28, 2009 1/31 Outline of the talk
More informationSTART-TO-END SIMULATIONS FOR IR/THZ UNDULATOR RADIATION AT PITZ
Proceedings of FEL2014, Basel, Switzerland MOP055 START-TO-END SIMULATIONS FOR IR/THZ UNDULATOR RADIATION AT PITZ P. Boonpornprasert, M. Khojoyan, M. Krasilnikov, F. Stephan, DESY, Zeuthen, Germany B.
More informationOPTIMIZING RF LINACS AS DRIVERS FOR INVERSE COMPTON SOURCES: THE ELI-NP CASE
OPTIMIZING RF LINACS AS DRIVERS FOR INVERSE COMPTON SOURCES: THE ELI-NP CASE C. Vaccarezza, D. Alesini, M. Bellaveglia, R. Boni, E. Chiadroni, G. Di Pirro, M. Ferrario, A. Gallo, G. Gatti, A. Ghigo, B.
More informationSwissFEL INJECTOR DESIGN: AN AUTOMATIC PROCEDURE
Proceedings of FEL03, New York, NY, USA SwissFEL INJECTOR DESIGN: AN AUTOMATIC PROCEDURE S. Bettoni, M. Pedrozzi, S. Reiche, PSI, Villigen, Switzerland Abstract The first section of FEL injectors driven
More informationATTOSECOND X-RAY PULSES IN THE LCLS USING THE SLOTTED FOIL METHOD
P. Emma et al. / Proceedings of the 24 FEL Conference, 333-338 333 ATTOSECOND X-RAY PULSES IN THE LCLS USING THE SLOTTED FOIL METHOD Abstract P. Emma, Z. Huang, SLAC, Stanford, CA 9439, USA M. Borland,
More informationCONCEPTUAL STUDY OF A SELF-SEEDING SCHEME AT FLASH2
CONCEPTUAL STUDY OF A SELF-SEEDING SCHEME AT FLASH2 T. Plath, L. L. Lazzarino, Universität Hamburg, Hamburg, Germany K. E. Hacker, T.U. Dortmund, Dortmund, Germany Abstract We present a conceptual study
More informationLow slice emittance preservation during bunch compression
Low slice emittance preservation during bunch compression S. Bettoni M. Aiba, B. Beutner, M. Pedrozzi, E. Prat, S. Reiche, T. Schietinger Outline. Introduction. Experimental studies a. Measurement procedure
More informationPotential use of erhic s ERL for FELs and light sources ERL: Main-stream GeV e - Up-gradable to 20 + GeV e -
Potential use of erhic s ERL for FELs and light sources Place for doubling energy linac ERL: Main-stream - 5-10 GeV e - Up-gradable to 20 + GeV e - RHIC Electron cooling Vladimir N. Litvinenko and Ilan
More informationTwo-Stage Chirped-Beam SASE-FEL for High Power Femtosecond X-Ray Pulse Generation
Two-Stage Chirped-Beam SASE-FEL for High ower Femtosecond X-Ray ulse Generation C. Schroeder*, J. Arthur^,. Emma^, S. Reiche*, and C. ellegrini* ^ Stanford Linear Accelerator Center * UCLA 12-10-2001 LCLS-TAC
More informationX-band RF driven hard X-ray FELs. Yipeng Sun ICFA Workshop on Future Light Sources March 5-9, 2012
X-band RF driven hard X-ray FELs Yipeng Sun ICFA Workshop on Future Light Sources March 5-9, 2012 Motivations & Contents Motivations Develop more compact (hopefully cheaper) FEL drivers, L S C X-band (successful
More informationParameter selection and longitudinal phase space simulation for a single stage X-band FEL driver at 250 MeV
Parameter selection and longitudinal phase space simulation for a single stage X-band FEL driver at 25 MeV Yipeng Sun and Tor Raubenheimer, Juhao Wu SLAC, Stanford, CA 9425, USA Hard x-ray Free electron
More informationBrightness and Coherence of Synchrotron Radiation and Free Electron Lasers. Zhirong Huang SLAC, Stanford University May 13, 2013
Brightness and Coherence of Synchrotron Radiation and Free Electron Lasers Zhirong Huang SLAC, Stanford University May 13, 2013 Introduction GE synchrotron (1946) opened a new era of accelerator-based
More informationNON LINEAR PULSE EVOLUTION IN SEEDED AND CASCADED FELS
NON LINEAR PULSE EVOLUTION IN SEEDED AND CASCADED FELS L. Giannessi, S. Spampinati, ENEA C.R., Frascati, Italy P. Musumeci, INFN & Dipartimento di Fisica, Università di Roma La Sapienza, Roma, Italy Abstract
More informationTowards a Low Emittance X-ray FEL at PSI
Towards a Low Emittance X-ray FEL at PSI A. Adelmann, A. Anghel, R.J. Bakker, M. Dehler, R. Ganter, C. Gough, S. Ivkovic, F. Jenni, C. Kraus, S.C. Leemann, A. Oppelt, F. Le Pimpec, K. Li, P. Ming, B. Oswald,
More informationStart-to-End Simulations
AKBP 9.3 Case Study for 100 µm SASE FEL Based on PITZ Accelerator for Pump-Probe Experiment at the European XFEL Start-to-End Simulations Outline Introduction Beam Optimization Beam Transport Simulation
More informationFemtosecond and sub-femtosecond x-ray pulses from a SASE-based free-electron laser. Abstract
SLAC-PUB-12 Femtosecond and sub-femtosecond x-ray pulses from a SASE-based free-electron laser P. Emma, K. Bane, M. Cornacchia, Z. Huang, H. Schlarb, G. Stupakov, and D. Walz Stanford Linear Accelerator
More informationS2E (Start-to-End) Simulations for PAL-FEL. Eun-San Kim
S2E (Start-to-End) Simulations for PAL-FEL Aug. 25 2008 Kyungpook Nat l Univ. Eun-San Kim 1 Contents I Lattice and layout for a 10 GeV linac II Beam parameters and distributions III Pulse-to-pulse stability
More informationSPPS: The SLAC Linac Bunch Compressor and Its Relevance to LCLS
LCLS Technical Advisory Committee December 10-11, 2001. SPPS: The SLAC Linac Bunch Compressor and Its Relevance to LCLS Patrick Krejcik LCLS Technical Advisory Committee Report 1: July 14-15, 1999 The
More informationResearch Topics in Beam Physics Department
Introduction Research Topics in Beam Physics Department The physics of particle beams has been a broad and vibrant research field encompassing the study of charged particle beams and their interactions.
More informationBeam Shaping and Permanent Magnet Quadrupole Focusing with Applications to the Plasma Wakefield Accelerator
Beam Shaping and Permanent Magnet Quadrupole Focusing with Applications to the Plasma Wakefield Accelerator R. Joel England J. B. Rosenzweig, G. Travish, A. Doyuran, O. Williams, B. O Shea UCLA Department
More informationFlexible control of femtosecond pulse duration and separation using an emittance-spoiling foil in x-ray free-electron lasers
SLAC PUB 16312 June 2015 Flexible control of femtosecond pulse duration and separation using an emittance-spoiling foil in x-ray free-electron lasers Y. Ding 1, C. Behrens 2, R. Coffee 1, F.-J. Decker
More informationAn Adventure in Marrying Laser Arts and Accelerator Technologies
An Adventure in Marrying Laser Arts and Accelerator Technologies Dao Xiang Beam Physics Dept, SLAC, Stanford University Feb-28-2012 An example sample Probe (electron) Pump (laser) Typical pump-probe experiment
More informationGreenfield FELs. John Galayda, SLAC Kwang-Je Kim, ANL (Presenter) James Murphy, BNL
Greenfield FELs John Galayda, SLAC Kwang-Je Kim, ANL (Presenter) James Murphy, BNL BESAC Subcommittee on BES 20-year Facility Road Map February 22-24, 2003 What is a Greenfield FEL? High-gain FELs are
More informationOpportunities and Challenges for X
Opportunities and Challenges for X -ray Free Electron Lasers for X-ray Ultrafast Science J. Hastings Stanford Linear Accelerator Center June 22, 2004 European XFEL Laboratory How Short is short? defined
More informationThe VISA II Experiment
The VISA II Experiment A study in electron beam dynamics and high gain, ultra short pulses in SASE FEL. Gerard Andonian UCLA PBPL Seminar Series July 21, 2004 Some Acronyms Definitions of some of the terms
More informationIntroduction to Free Electron Lasers and Fourth-Generation Light Sources. 黄志戎 (Zhirong Huang, SLAC)
Introduction to Free Electron Lasers and Fourth-Generation Light Sources 黄志戎 (Zhirong Huang, SLAC) FEL References K.-J. Kim and Z. Huang, FEL lecture note, available electronically upon request Charles
More informationTime resolved transverse and longitudinal phase space measurements at the high brightness photo injector PITZ
Time resolved transverse and longitudinal phase space measurements at the high brightness photo injector PITZ 1. Motivation 2. Transverse deflecting structure 3. Longitudinal phase space tomography 4.
More informationVertical Polarization Option for LCLS-II. Abstract
SLAC National Accelerator Lab LCLS-II TN-5-8 March 5 Vertical Polarization Option for LCLS-II G. Marcus, T. Raubenheimer SLAC, Menlo Park, CA 95 G. Penn LBNL, Berkeley, CA 97 Abstract Vertically polarized
More informationShort Wavelength SASE FELs: Experiments vs. Theory. Jörg Rossbach University of Hamburg & DESY
Short Wavelength SASE FELs: Experiments vs. Theory Jörg Rossbach University of Hamburg & DESY Contents INPUT (electrons) OUTPUT (photons) Momentum Momentum spread/chirp Slice emittance/ phase space distribution
More informationSINBAD. Ralph W. Aßmann Leading Scientist, DESY. LAOLA Collaboration Meeting, Wismar
SINBAD Ralph W. Aßmann Leading Scientist, DESY LAOLA Collaboration Meeting, Wismar 28.05.2013 Reminder: Helmholtz Roadmap > The latest Helmholtz-roadmap for research infrastructure was published in 2011.
More informationBeam compression experiments using the UCLA/ATF compressor
Beam compression experiments using the UCLA/ATF compressor J.B. ROSENZWEIG, M. DUNNING, E. HEMSING, G. ANDONIAN, A.M. COOK, A. MUROKH, S. REICHE, D. SCHILLER, M. BABZIEN #, K. KUSCHE #, V. YAKIMENKO #,
More informationFLASH/DESY, Hamburg. Jörg Rossbach University of Hamburg & DESY, Germany - For the FLASH Team -
First Lasing below 7nm Wavelength at FLASH/DESY, Hamburg Jörg Rossbach University of Hamburg & DESY, Germany - For the FLASH Team - email: joerg.rossbach@desy.de FLASH: The first FEL user facility for
More informationThe UCLA/LLNL Inverse Compton Scattering Experiment: PLEIADES
The UCLA/LLNL Inverse Compton Scattering Experiment: PLEIADES J.B. Rosenzweig UCLA Department of Physics and Astronomy 23 Giugno, 2003 Introduction Inverse Compton scattering provides a path to 4th generation
More informationSingle spike operation in SPARC SASE-FEL
SPARC-BD-07-006 December 2007 Single spike operation in SPARC SASE-FEL M. Boscolo a,*, M. Ferrario a, I. Boscolo b, F. Castelli b, S. Cialdi b, V. Petrillo b, R. Bonifacio c, L. Palumbo d L. Serafini e
More informationMaRIE. MaRIE X-Ray Free-Electron Laser Pre-Conceptual Design
Operated by Los Alamos National Security, LLC, for the U.S. Department of Energy MaRIE (Matter-Radiation Interactions in Extremes) MaRIE X-Ray Free-Electron Laser Pre-Conceptual Design B. Carlsten, C.
More informationSynchrotron Radiation Sources and Free Electron Lasers. Josef Frisch
Synchrotron Radiation Sources and Free Electron Lasers Josef Frisch 1 X-ray Sources Modern high intensity sources are based on synchrotron radiation from high energy electrons propagating through an undulator
More information4 FEL Physics. Technical Synopsis
4 FEL Physics Technical Synopsis This chapter presents an introduction to the Free Electron Laser (FEL) physics and the general requirements on the electron beam parameters in order to support FEL lasing
More informationExperimental Measurements of the ORION Photoinjector Drive Laser Oscillator Subsystem
Experimental Measurements of the ORION Photoinjector Drive Laser Oscillator Subsystem D.T Palmer and R. Akre Laser Issues for Electron RF Photoinjectors October 23-25, 2002 Stanford Linear Accelerator
More informationSimulations of the Microbunching Instability in FEL Beam Delivery Systems
Simulations of the Microbunching Instability in FEL Beam Delivery Systems Ilya Pogorelov Tech-X Corporation Workshop on High Average Power & High Brightness Beams UCLA, January 2009 Outline The setting:
More informationIntroduction. Thermoionic gun vs RF photo gun Magnetic compression vs Velocity bunching. Probe beam design options
Introduction Following the 19/05/04 meeting at CERN about the "CTF3 accelerated programme", a possible french contribution has been envisaged to the 200 MeV Probe Beam Linac Two machine options were suggested,
More informationStatus of the Project PLASMONX and the Experiment LILIA
Status of the Project PLASMONX and the Experiment LILIA Luca Serafini - INFN/Mi and INFN/LNF High Brightness Photoinjector SPARC High Intensity (5 J, 300 TW) laser FLAME both running at INFN-LNF Advanced
More informationLCLS Commissioning Status
LCLS Commissioning Status Paul Emma (for the LCLS Commissioning Team) June 20, 2008 LCLS ANL LLNL UCLA FEL Principles Electrons slip behind EM wave by λ 1 per undulator period ( (λ u ) x K/γ e λ u v x
More informationElectron Linear Accelerators & Free-Electron Lasers
Electron Linear Accelerators & Free-Electron Lasers Bryant Garcia Wednesday, July 13 2016. SASS Summer Seminar Bryant Garcia Linacs & FELs 1 of 24 Light Sources Why? Synchrotron Radiation discovered in
More informationEmittance Compensation. J.B. Rosenzweig ERL Workshop, Jefferson Lab 3/20/05
Emittance Compensation J.B. Rosenzweig ERL Workshop, Jefferson Lab 3//5 Emittance minimization in the RF photoinjector Thermal emittance limit Small transverse beam size Avoid metal cathodes? " n,th #
More informationFree-electron laser SACLA and its basic. Yuji Otake, on behalf of the members of XFEL R&D division RIKEN SPring-8 Center
Free-electron laser SACLA and its basic Yuji Otake, on behalf of the members of XFEL R&D division RIKEN SPring-8 Center Light and Its Wavelength, Sizes of Material Virus Mosquito Protein Bacteria Atom
More informationModeling of Space Charge Effects and Coherent Synchrotron Radiation in Bunch Compression Systems. Martin Dohlus DESY, Hamburg
Modeling of Space Charge Effects and Coherent Synchrotron Radiation in Bunch Compression Systems Martin Dohlus DESY, Hamburg SC and CSR effects are crucial for design & simulation of BC systems CSR and
More informationFemtosecond X-ray Pulse Temporal Characterization in Free-Electron Lasers Using a Transverse Deflector. Abstract
SLAC PUB 14534 September 2011 Femtosecond X-ray Pulse Temporal Characterization in Free-Electron Lasers Using a Transverse Deflector Y. Ding 1, C. Behrens 2, P. Emma 1, J. Frisch 1, Z. Huang 1, H. Loos
More informationAccelerator Activities at PITZ
Accelerator Activities at PITZ Plasma acceleration etc. Outline > Motivation / Accelerator Research & Development (ARD) > Plasma acceleration Basic Principles Activities SINBAD > ps-fs electron and photon
More informationPushing the limits of laser synchrotron light sources
Pushing the limits of laser synchrotron light sources Igor Pogorelsky National Synchrotron Light Source 2 Synchrotron light source With λ w ~ several centimeters, attaining XUV region requires electron
More informationHigh Energy Gain Helical Inverse Free Electron Laser Accelerator at Brookhaven National Laboratory
High Energy Gain Helical Inverse Free Electron Laser Accelerator at Brookhaven National Laboratory J. Duris 1, L. Ho 1, R. Li 1, P. Musumeci 1, Y. Sakai 1, E. Threlkeld 1, O. Williams 1, M. Babzien 2,
More informationObservation of Coherent Optical Transition Radiation in the LCLS Linac
Observation of Coherent Optical Transition Radiation in the LCLS Linac Henrik Loos, Ron Akre, Franz-Josef Decker, Yuantao Ding, David Dowell, Paul Emma,, Sasha Gilevich, Gregory R. Hays, Philippe Hering,
More informationSCSS Prototype Accelerator -- Its outline and achieved beam performance --
SCSS Prototype Accelerator -- Its outline and achieved beam performance -- Hitoshi TANAKA RIKEN, XFEL Project Office 1 Content 1. Light Quality; SPring-8 v.s. XFEL 2. What are the critical issues? 3. Mission
More informationStanford Linear Accelerator Center
LCLS Linac Overview Vinod Bharadwaj Stanford Linear Accelerator Center Vinod Bharadwaj Linac Overview 15 min Gennady Stupakov CSR Effects- Theory 20 min Paul Emma LCLS Linac Update 20 min Mike Borland
More informationFACET-II Design Update
FACET-II Design Update October 17-19, 2016, SLAC National Accelerator Laboratory Glen White FACET-II CD-2/3A Director s Review, August 9, 2016 Planning for FACET-II as a Community Resource FACET-II Photo
More informationMicrobunching Workshop 2010 March 24, 2010, Frascati, Italy. Zhirong Huang
Measurements of the LCLS Laser Heater and its impact on the LCLS FEL Performance Z. Huang for the LCLS commissioning team LCLS 1 1 Outline Introduction LCLS setup and measurements Effects on FEL performance
More informationHigh gradient, high average power structure development at UCLA and Univ. Rome in X-X. band
High gradient, high average power structure development at UCLA and Univ. Rome in X-X and S-S band May 23-25, 25, 2007 US High Gradient Research Collaboration Workshop Atsushi Fukasawa, James Rosenzweig,
More informationR&D experiments at BNL to address the associated issues in the Cascading HGHG scheme
R&D experiments at BNL to address the associated issues in the Cascading HGHG scheme Li Hua Yu for DUV-FEL Team National Synchrotron Light Source Brookhaven National Laboratory FEL2004 Outline The DUVFEL
More informationAn Overview of the Activities of ICS Sources in China
An Overview of the Activities of ICS Sources in China Chuanxiang Tang *, Yingchao Du, Wenhui Huang * tang.xuh@tsinghua.edu.cn Department of Engineering physics, Tsinghua University, Beijing 100084, China
More informationSmall-angle Thomson scattering of ultrafast laser pulses. for bright, sub-100-fs X-ray radiation
Small-angle Thomson scattering of ultrafast laser pulses for bright, sub-100-fs X-ray radiation Yuelin Li, Zhirong Huang, Michael D. Borland and Stephen Milton Advanced Photon Source, Argonne National
More informationLayout of the HHG seeding experiment at FLASH
Layout of the HHG seeding experiment at FLASH V. Miltchev on behalf of the sflash team: A. Azima, J. Bödewadt, H. Delsim-Hashemi, M. Drescher, S. Düsterer, J. Feldhaus, R. Ischebeck, S. Khan, T. Laarmann
More information4GLS Status. Susan L Smith ASTeC Daresbury Laboratory
4GLS Status Susan L Smith ASTeC Daresbury Laboratory Contents ERLP Introduction Status (Kit on site ) Plan 4GLS (Conceptual Design) Concept Beam transport Injectors SC RF FELs Combining Sources May 2006
More informationDark Current at Injector. Jang-Hui Han 27 November 2006 XFEL Beam Dynamics Meeting
Dark Current at Injector Jang-Hui Han 27 November 2006 XFEL Beam Dynamics Meeting Considerations for the guns Ultra-low slice emittance of electron beams higher gradient at the gun cavity solenoid field
More informationOPTIMIZATION OF COMPENSATION CHICANES IN THE LCLS-II BEAM DELIVERY SYSTEM
OPTIMIZATION OF COMPENSATION CHICANES IN THE LCLS-II BEAM DELIVERY SYSTEM LCLS-II TN-15-41 11/23/2015 J. Qiang, M. Venturini November 23, 2015 LCLSII-TN-15-41 1 Introduction L C L S - I I T E C H N I C
More informationProgress in Soft X-rays FELs
Progress in Soft X-rays FELs R. Bartolini Diamond Light Source Ltd and John Adams Institute, University of Oxford FLS 2010 SLAC, 01 March 2010 Outline Introduction FEL radiation properties and users requirements
More informationAnalysis of FEL Performance Using Brightness Scaled Variables
Analysis of FEL Performance Using Brightness Scaled Variables Michael Gullans with G. Penn, J. Wurtele, and M. Zolotorev Lawrence Berkeley National Laboratory, Berkeley, CA 94720 Outline Introduce brightness
More informationSL_COMB. The SL_COMB experiment at SPARC_LAB will operate in the so-called quasinonlinear regime, defined by the dimensionless charge quantity
SL_COMB E. Chiadroni (Resp), D. Alesini, M. P. Anania (Art. 23), M. Bellaveglia, A. Biagioni (Art. 36), S. Bini (Tecn.), F. Ciocci (Ass.), M. Croia (Dott), A. Curcio (Dott), M. Daniele (Dott), D. Di Giovenale
More informationIntroduction to single-pass FELs for UV X-ray production
Introduction to single-pass FELs for UV X-ray production S. Di Mitri, Elettra Sincrotrone Trieste INSC - 08/2014 simone.dimitri@elettra.eu 1 Outlook Motivations Radiation emission in undulator Self-Amplified
More information