Plasma Wakefield Acceleration G. Xia Cockcroft Institute University of Manchester 124/03/2015Novel acceleration topical meeting.

Slides:



Advertisements
Similar presentations
Plasma Wakefield Acceleration at CLARA G. Xia Cockcroft Institute University of Manchester 113/01/2014IoP CLARA Community Meeting.
Advertisements

Plasma Wakefield Accelerator
The scaling of LWFA in the ultra-relativistic blowout regime: Generation of Gev to TeV monoenergetic electron beams W.Lu, M.Tzoufras, F.S.Tsung, C. Joshi,
SINBAD Ralph W. Aßmann Leading Scientist, DESY LAOLA Collaboration Meeting, Wismar
Radiation Physics | ELBE | SRF Photo Injector for Electron- Laser Interaction LA 3 NET conference: Laser applications at accelerators, Mallorca,
1 Bates XFEL Linac and Bunch Compressor Dynamics 1. Linac Layout and General Beam Parameter 2. Bunch Compressor –System Details (RF, Magnet Chicane) –Linear.
Sub-femtosecond bunch length diagnostic ATF Users Meeting April 26, 2012 Gerard Andonian, A. Murokh, J. Rosenzweig, P. Musumeci, E. Hemsing, D. Xiang,
Particle-Driven Plasma Wakefield Acceleration James Holloway University College London, London, UK PhD Supervisors: Professor Matthew wing University College.
UCLA Experiments with short single e-bunch using preformed and beam ionized plasma Retain ability to run short single bunch with pre-ionized plasma Ken.
Chengkun Huang | Compass meeting 2008 Chengkun Huang, I. Blumenfeld, C. E. Clayton, F.-J. Decker, M. J. Hogan, R. Ischebeck, R. Iverson, C. Joshi, T. Katsouleas,
Erik Adli CLIC Workshop 2015, CERN, CH 1 Erik Adli Department of Physics, University of Oslo, Norway Input from: Steffen Doebert, Wilfried Farabolini,
Lecture 3: Laser Wake Field Acceleration (LWFA)
2 Lasers: Centimeters instead of Kilometers ? If we take a Petawatt laser pulse, I=10 21 W/cm 2 then the electric field is as high as E=10 14 eV/m=100.
The AWAKE Project at CERN and its Connections to CTF3 Edda Gschwendtner, CERN.
New Electron Beam Test Facility EBTF at Daresbury Laboratory B.L. Militsyn on behalf of the ASTeC team Accelerator Science and Technology Centre Science.
FACET and beam-driven e-/e+ collider concepts Chengkun Huang (UCLA/LANL) and members of FACET collaboration SciDAC COMPASS all hands meeting 2009 LA-UR.
Winni Decking Impressions from the Dream Beams Symposium Max-Planck-Institut fuer Quantenoptik (MPQ)
All-optical accelerators
P. Muggli, Summary EuroNAAc 11 Disclaimer 1: all slides with nice graphics and useful information shamelessly stolen from original talks Disclaimer 2:
Two Longitudinal Space Charge Amplifiers and a Poisson Solver for Periodic Micro Structures Longitudinal Space Charge Amplifier 1: Longitudinal Space Charge.
Pavel Karataev John Adams Institute for Accelerator Science At Royal Holloway, University of London oPAC Advanced School on Accelerator Optimisation 7-11.
Beam Dynamics and FEL Simulations for FLASH Igor Zagorodnov and Martin Dohlus Beam Dynamics Meeting, DESY.
Accelerator Science and Technology Centre POST-LINAC BEAM TRANSPORT AND COLLIMATION FOR THE UK’S NEW LIGHT SOURCE PROJECT D. Angal-Kalinin,
Max Cornacchia, SLAC LCLS Project Overview BESAC, Feb , 2001 LCLS Project Overview What is the LCLS ? Transition from 3 rd generation light sources.
Octoberfest! October 2014 Peter Tudor John Adams Institute for Accelerator Science Laser Wakefield Acceleration.
R&D opportunities for photoinjectors Renkai Li 10/12/2015 FACET-II Science Opportunities Workshops October, 2015 SLAC National Accelerator Laboratory.
James Holloway University College London, London, UK PhD Supervisors: Professor Matthew Wing University College London, London, UK Professor Peter Norreys.
1 1 Office of Science C. Schroeder, E. Esarey, C. Benedetti, C. Geddes, W. Leemans Lawrence Berkeley National Laboratory FACET-II Science Opportunities.
GWENAEL FUBIANI L’OASIS GROUP, LBNL 6D Space charge estimates for dense electron bunches in vacuum W.P. LEEMANS, E. ESAREY, B.A. SHADWICK, J. QIANG, G.
Erik Adli CLIC Project Meeting, CERN, CH 1 Erik Adli Department of Physics, University of Oslo, Norway Input from: Steffen Doebert, Wilfried Farabolini,
The Next Generation Light Source Test Facility at Daresbury Jim Clarke ASTeC, STFC Daresbury Laboratory Ultra Bright Electron Sources Workshop, Daresbury,
Design Considerations of table-top FELs laser-plasma accelerators principal possibility of table-top FELs possible VUV and X-ray scenarios new experimental.
UCLA Claudio Pellegrini UCLA Department of Physics and Astronomy X-ray Free-electron Lasers Ultra-fast Dynamic Imaging of Matter II Ischia, Italy, 4/30-5/3/
Non Double-Layer Regime: a new laser driven ion acceleration mechanism toward TeV 1.
Transverse Gradient Undulator and its applications to Plasma-Accelerator Based FELs Zhirong Huang (SLAC) Introduction TGU concept, theory, technology Soft.
Tuning Techniques And Operator Diagnostics for FACET at SLAC National Accelerator Laboratory Chris Melton SLAC Accelerator Operations.
Prospects for generating high brightness and low energy spread electron beams through self-injection schemes Xinlu Xu*, Fei Li, Peicheng Yu, Wei Lu, Warren.
J. Corlett. June 16, 2006 A Future Light Source for LBNL Facility Vision and R&D plan John Corlett ALS Scientific Advisory Committee Meeting June 16, 2006.
Ultra-short electron bunches by Velocity Bunching as required for Plasma Wave Acceleration Alberto Bacci (Sparc Group, infn Milano) EAAC2013, 3-7 June,
Coherent THz radiation source driven by pre-bunched electron beam
Bunch Shaping for Future Dielectric Wakefield Accelerators W. Gai Mini-Workshop on Deflecting/Crabbing RF Cavity Research and application in Accelerators.
PhD Topics at Novel Accelerator Group of Manchester Guoxing Xia 27 th June 2016.
Jayakar Thangaraj Fermilab Accelerator Advisory Committee November 7-9, 2011 PROTOPLASMA: Proton-driven wakefield experiment at Fermilab.
Introduction to Plasma Physics and Plasma-based Acceleration Wakefield acceleration Various images provided by R. Bingham.
Free Electron Laser Studies
LSC/CSR Instability Introduction (origin of the instability) CSR/LSC
Dielectric Wakefield R&D programme at Daresbury Lab.
Dr G Burt Lancaster University, Cockcroft Institute
Proton-driven plasma wakefield acceleration in hollow plasma
Electron acceleration behind self-modulating proton beam in plasma with a density gradient Alexey Petrenko.
Beam dynamics for an X-band LINAC driving a 1 keV FEL
The 2nd European Advanced Accelerator Concepts Workshop
Status of the MAX IV Short Pulse Facility
Sara Thorin, MAX IV Laboratory
8-10 June Institut Henri Poincaré, Paris, France
Laboratoire d’Optique Appliquée
Stefano Romeo on behalf of SPARC_LAB collaboration
Tunable Electron Bunch Train Generation at Tsinghua University
EuPRAXIA working package report
Proton driven plasma accelertion
6D Characterization of Witness Beam before Injection in LWFA
Wakefield Accelerator
AD & I : BDS Lattice Design Changes
Few Slides from RF Deflector Developments and Applications at SLAC
E-164 E-162 Collaboration: and E-164+X:
Review of Application to SASE-FELs
Proton Driven Plasma Wakefield Acceleration
LCLS FEL Parameters Heinz-Dieter Nuhn, SLAC / SSRL April 23, 2002
2. Crosschecking computer codes for AWAKE
Introduction to Free Electron Lasers Zhirong Huang
Presentation transcript:

Plasma Wakefield Acceleration G. Xia Cockcroft Institute University of Manchester 124/03/2015Novel acceleration topical meeting

Outline Motivations Current status worldwide Plasma wakefield acceleration at CLARA Other research topics at CLARA Summary 224/03/2015Novel acceleration topical meeting

Long term future of High-Energy physics requires the need for new high-gradient technology----Stressed at the updated European Strategy Report for Particle Physics in Gradients from 1GeV/m to 100 GeV/m are possible from relativistic plasma waves. Why plasmas? 3Novel acceleration topical meeting24/03/2015

Why plasmas? 4 e.g. n p =10 18 cm -3, the accelerating field will be 100 GeV/m! 10 3 orders of magnitude higher than the fields in conventional accelerators ! Novel acceleration topical meeting24/03/2015

Current status worldwide (Laser wakefield accelerators -LWFA) 24/03/2015Novel acceleration topical meeting5 Short pulse laser laser guiding in plasma (3’D’ effect: diffraction, dephasing, depletion)

LBNL 6 E. Esarey Novel acceleration topical meeting24/03/2015

Novel acceleration topical meeting7 Recent results-LWFA W.P. Leemans et al., PRL 113, (2014)

8 driving force: Space charge of drive beam displaces plasma electrons. restoring force: Plasma ions exert restoring force Space charge oscillations (Harmonic oscillator) electron beam Ez 24/03/2015Novel acceleration topical meeting Plasma wakefield accelerators (PWFA)

PWFA - Energy FFTB 9 Electron beam (beam energy 42 GeV, bunch length 50 fs, bunch charge 2.9 nC) Plasma (heat Li oven, length 85 cm, density 2.7e17 cm-3) Max. energy gain 43 GeV (85 cm column) = 52 GeV/m ! Energy spectrum of the electrons in the GeV range as observed in plane 2 Blumenfeld et al., Nature 445 (2007) 741 Novel acceleration topical meeting24/03/2015

Recent results-PWFA 24/03/2015Novel acceleration topical meeting10 M. Litos et al., Nature 515, (2014)

Proton-driven PWFA A. Caldwell et al, Nature Physics 5, 363 (2009). p+p+ e-e- 600 GeV e - beam ≤1% ΔE/E in ~500 plasma Drive beam: p + E=1 TeV, N p =10 11 σ r =0.43 mm, σ θ =0.03 mrad, σ z =100 μm, ΔE/E=10 % Witness beam: e - E 0 =10 GeV, N e =1.5x10 10 Plasma: Li + n p =6x10 14 cm -3 External magnetic field: Field gradient: 1000 T/m Magnet length: 0.7 m 11 Novel acceleration topical meeting24/03/2015

CERN AWAKE experiment 12Novel acceleration topical meeting24/03/2015

CERN AWAKE experiment Scientific goals 1.Demonstrate self-modulation effect of a long proton bunch and realize 1 GeV electron energy gain with a ~10 m plasma 2.Develop and test the diagnostic equipments for the first and later experiments 3.Benchmark data against simulation results 4.Provide inputs for future experiment for 100 GeV in 100 m plasma Inject MeV electron beam Acceleration of electrons to multi- GeV energy range after the plasma exit. 13Novel acceleration topical meeting24/03/2015 Strong UK Involvement, CI, JAI, RAL, Universities…

Why PWFA at CLARA? Why it makes sense – Free space available close to CLARA beam line – Unique beam properties (low emittance, high charge, relativistic) – Diverse beam operation modes – Well developed beam diagnostic equipment for VELA and CLARA (deflecting cavities, longitudinal bunch length measurement, etc.) Possible contributions to advanced accelerator community – Two-bunch experiment for energy doubling of CLARA beam – High transformer ratio (laser shaping of the bunch density profile, hard-edge bunch for an efficient wakefield excitation) – Ultrashort pulse x-rays production from betatron radiation – Plasma lens focusing effect – Hybrid wakefield acceleration/plasma photocathode injector – The self-modulation effect for a long beam (same gamma as SPS beam) 24/03/2015Novel acceleration topical meeting14

Plasma acceleration research station (PARS) 24/03/2015Novel acceleration topical meeting15

PARS beam line at CLARA 1624/03/2015Novel acceleration topical meeting

PARS beam line design VELA PARS at CLARA (D. Angal-Kalinin) 24/03/2015Novel acceleration topical meeting17

The proposed dogleg beam line design using “–I “ transform between the dipoles using two FODO doublets keeps the transverse beam emittance blow up due to coherent synchrotron radiation within acceptable limits for 250 pC at 250 fsec bunch length and for 20 pC at 30 fsec. The possibility of using the additional take off line at lower angle (~6  ) from the 30  dipole for high energy diagnostics spectrometer or a seeding dogleg dipole is being investigated. The proposed beamline is contained within the CLARA shielding area with a transverse centre-to- centre offset of ~1.5m. Extract CLARA beam at full energy of 250 MeV Dipoles -6  Dipoles +6  PARS at CLARA 24/03/2015Novel acceleration topical meeting18

PARS at CLARA Compared to electron driven plasma wakefield experiments at FLASH beam energy at CLARA is intermediate, easy to handle and less radiation. Many interesting topics will be investigated: Two-bunch experiment (crafting two bunches via laser or mask collimator, one for driving plasma wakefield, the other for sampling the wakefield); for demonstrating energy doubling of CLARA beam, the witness beam with low emittance and low energy spread; High transformer ratio study (beam density profile shaping by shaping the laser pulse), e.g. multi-bunches or hard-edge beam can be an ideal driver beam; Ultrashort X-ray pulse generation via betatron radiation; Self-modulation of a long electron bunch—provide inputs to CERN proton-driven PWFA experiment (AWAKE); As the electron injector for a laser-driven wakefield acceleration (combined with LWFA research). 1924/03/2015Novel acceleration topical meeting

CLARA beam parameters 20 CLARA CDR, July /03/2015Novel acceleration topical meeting

CLARA PARS Project Work packages: Electron Beam Delivery (design, operation and optimization of electron beam to the PARS; dogleg, final focus, e - beam dump, laser beam dump)—design work partly done. Plasma Source (produce a mm long discharge plasma source with diameter of ~1 mm, density of cm -3, plasma diagnostics, density and temperature)---funding secured, ongoing work. Beam Diagnostics (measurement of beam specifications before and after plasma, emittance, energy, beam size, bunch length, charge, etc. energy spectrometer, CTR, OTR, streak camera, ICT, etc.)---under study. Simulations (electron beam simulation, PIC simulation of interactions between plasma and beam, code benchmarking, benchmarking the simulation results against the experimental data, optimize beam and plasma parameters for next round of experiments etc.)---ongoing work. 24/03/2015Novel acceleration topical meeting21

Two-bunch acceleration 24/03/2015Novel acceleration topical meeting22

Two-bunch acceleration 24/03/2015Novel acceleration topical meeting23

Two-bunch acceleration 24/03/2015Novel acceleration topical meeting24

Plasma density scan 24/03/2015Novel acceleration topical meeting25

Plasma density scan 24/03/2015Novel acceleration topical meeting26

High transformer ratio 24/03/2015Novel acceleration topical meeting27 High efficient acceleration with shaped electron bunches – with a long rise time and a shorter fall time. Such bunches can produce wakes that have a high transformer ratio. (CERN Courier, Feb. 2011)

Self-modulation instability Long bunch gets modulation in the wakefield excited by itself (bunch head). Many ultra-short bunch slices (scale of a plasma wavelength) are produced and then excite the wakefield and add up coherently to a high amplitude (AWAKE experiment at CERN). CLARA beam has a similar gamma factor (gamma ~ 500) as SPS beam, many plasma-beam dynamics could be similar and could be tested here at PARS. 2824/03/2015Novel acceleration topical meeting electrons

The plasma can be used as undulator to produce high brightness, ultra-short, keV to MeV photon pulse via betatron radiation. 24/03/2015Novel acceleration topical meeting29 X-ray from betatron radiation

Discharge plasma source 24/03/2015Novel acceleration topical meeting30

Plasma source 24/03/2015Novel acceleration topical meeting31

CLARA front-end 24/03/2015Novel acceleration topical meeting32

CLARA front-end Bunch length: 75 μm, beam radius: 20 μm, beam energy: 30 MeV, bunch charge: 250 pC, plasma density: 3E15 /cm^3 24/03/2015Novel acceleration topical meeting33

Other research topics at PARS Some advanced beam dynamics issues can be investigated in this dedicated test bed as well, e.g. Coherent synchrotron radiation-CSR (THz radiation), microbunching instability and its countermeasures, etc. ----crucial to FEL operation Beam manipulation and emittance exchange (deflecting cavities + dipole magnets)----for novel FEL modes like EEHG Beam instrumentation R&D for ultra-short electron beam (Electro-optical sampling, Smith-Purcell radiation etc.) 3424/03/2015Novel acceleration topical meeting

Summary Plasma wakefield acceleration has made tremendous progress in the last decades. It may change the field dramatically. The Plasma Accelerator Research Station (PARS) at CLARA will provide an ideal platform to investigate the key issues in plasma-based accelerators. A high accelerating gradient can be achieved with the relativistic CLARA beam. For the two-bunch experiment, a trailing bunch can gain energy from the wakefield and preserve its low emittance and low energy spread and get energy doubled. Many other issues on the advanced beam dynamics, beam instrumentation R&D, hybrid wakefield accelerators etc. can be investigated at PARS as well. 3524/03/2015Novel acceleration topical meeting

Next step… Funding application-STFC PRD grant, or EPSRC grant, £500k (beam lines, plasma source, beam and plasma diagnostics) Some dedicated ASTeC staff’s contribution to beam lines and diagnostics One PhD (T. Pacey) has been secured at the moment, he will concentrate on the CLARA PWFA experiment (plasma source + diagnostics) A dedicated PDRA will be needed to focus on this project (theoretical, simulation and experimental aspects) Collaboration with ASTeC, other CI Universities (including Strathclyde), Oxford and Imperial College London 24/03/2015Novel acceleration topical meeting36

24/03/2015Novel acceleration topical meeting37 Acknowledgements ASTeC colleagues: J. Clarke, D. Angal-Kalinin, J. Jones, P.H. Williams, J.W. Mckenzie, B.L. Militsyn… Our team in Manchester O. Mete, H. Kieran, T. Pacey, Y. Li, M. Wigram, M. Dover, J. Zhang, J. Wright, G. Xia Tech-X UK J. Smith

24/03/2015Novel acceleration topical meeting38 Thank you very much !