1 / 15

Proton-driven Plasma Wakefield Acceleration

Proton-driven Plasma Wakefield Acceleration. Why proton-driven PWA ? What can be achieved in the future with PDPWA ? What can we do today – proposed experiment at CERN Who is interested/time scale. Allen Caldwell Max-Planck-Institut für Physik EuroNNAC Workshop, CERN May 4, 2011.

ilya
Télécharger la présentation

Proton-driven Plasma Wakefield Acceleration

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Proton-driven Plasma Wakefield Acceleration Why proton-driven PWA ? What can be achieved in the future with PDPWA ? What can we do today – proposed experiment at CERN Who is interested/time scale Allen Caldwell Max-Planck-Institut für Physik EuroNNAC Workshop, CERN May 4, 2011 EuroNNAC

  2. Why Proton-Driven PWA? We know how to produce high energy/particle and high bunch energies with protons today, so if we can use protons to drive an electron bunch we could potentially have a simpler arrangement - single stage acceleration. Linear regime (nb<n0): Need very short proton bunches for strong gradients. Today’s proton beams have EuroNNAC

  3. Proton-driven plasma wakefield acceleration (PDPWA) A. Pukhov, U. Düsseldorf, VLPL p+ e- Drive beam: p+ E=1 TeV, Np=1011 σz=100 μm,σr=0.43 mm σθ=0.03 mrad, ΔE/E=10% 600 GeV e- beam Witness beam: e- E0=10 GeV, Ne=1.5x1010 ≤1% ΔE/E in ~500 plasma Plasma: Li+ np=6x1014cm-3 External magnetic field: Field gradient: 1000 T/m Magnet length: 0.7 m A. Caldwell, K. Lotov, A. Pukhov, F. Simon, Nature Physics 5, 363 (2009). EuroNNAC

  4. Energy 1 TeV K. Lotov (Budker Institute, Novosibirsk) LCODE Phase EuroNNAC

  5. G. Xia (MPP) EuroNNAC

  6. Too long – use in combination with other compression schemes EuroNNAC

  7. Modulation of long bunch instead of bunch compression Simulation: W. Lu, OSIRIS code (UCLA/Tsinghua U.) EuroNNAC

  8. Demonstration experiment on PDPWA • kick-off meeting-PPA09 held at CERN December 2009 • A spare SPS tunnelfordemonstrationexperimentlocated • Large group of interestedinstitutes • Letter of Intent to CERN underpreparation CERN has expressed interest in hosting project, tunnel and experimental area identified EuroNNAC

  9. EuroNNAC

  10. Initial goalis to observetheenergygain of 1 GeV in 5 m plasma. • A plan forreaching 100 GeVwithin 100 m plasma will bedevelopedbased on theinitialround of experiment EuroNNAC

  11. ExpectedResults: A long SPS drivebeam (withoutcompression) will beused in thefirstexperiment. A self-modulation of thebeamdue to thetransversewakefieldoccurswhichproducesmanyultrashortbeamslices. Particle-in-cellsimulationshavebeenperformed to look at electronacceleration: C. Huang, Los Alamos Nat. Lab. Themodulationresonantlydriveswakefield in the 100-1000 MV/m with CERN SPS beam. A. Pukhov, Heinrich Heine University, Düsseldorf EuroNNAC

  12. Plasma Cell ideas: Metal vapor, a la SLAC experiment: UCLA, Max Planck Institute for Physics Discharge: IST, Imperial College Helicon – Max Planck Institute for Plasma Physics EuroNNAC

  13. Diagnostics: Electro-optical sampling for modulations, field strength: University College, RAL, DESY Imperial College, Cockroft Institute, Strathclyde Coherent transition radiation Electron spectrometer: CERN, Imperial College, Cockroft Institute, Strathclyde Simulation of long electron bunch, optimal SPS beam: J. Vieira, IST EuroNNAC

  14. So far, everyone interested has been welcome ! Time scale: Submit LoI for consideration by SPSC in few weeks Develop technical plan til mid 2012 Build components/installation of beamlinetilmid-end 2014 Start experimentation 2015 EuroNNAC

  15. Demonstration experiment based on modulation of SPS proton bunches will generate many exciting results. Long term prospects for modulated proton bunch intriguing: K. Lotov – simulation of existing LHC bunch in plasma with trailing electron bunch … Electron energy gain Proton energy loss/gain Miracle: no guiding magnetic fields necessary ! EuroNNAC

More Related