Author: Lotov, K.V.
Paper Title Page
TUPEA008 Physics of the AWAKE Project 1179
 
  • P. Muggli, E. Oz, R. Tarkeshian
    MPI, Muenchen, Germany
  • C. Bracco, E. Gschwendtner, A. Pardons
    CERN, Geneva, Switzerland
  • A. Caldwell, O. Reimann
    MPI-P, München, Germany
  • K.V. Lotov
    BINP SB RAS, Novosibirsk, Russia
  • A.M. Pukhov
    HHUD, Dusseldorf, Germany
  • J. Vieira
    IPFN, Lisbon, Portugal
  • M. Wing
    UCL, London, United Kingdom
 
  The goal of the AWKAKE collaboration is the study of plasma wakefields driven by proton (p+) bunches through experiments, simulations and theory. Proton bunches are interesting wakefield drivers because they can be ultra-relativistic (TeVs/p+) and carry large amounts of energy (>kJ). It was demonstrated in simulations* that acceleration of an electron (e-) bunch from 10GeV to >500GeV can be achieved in ~500m of plasma driven by a 1TeV, 100micron-long, bunch with 1011 p+. Such short p+ bunches do not exist today. It was suggested** that a p+ bunch long compared to the plasma period can transversely self-modulate and resonantly drive wakefields to large amplitudes (~GV/m). Initial experiments based on self-modulation instability (SMI) will use single 12cm-long CERN SPS bunches with 1-3·1011, 450GeV p+ to study physics of SMI. With a plasma density of 7·1014/cc the plasma wave and modulation period is 1.3mm. The SMI saturates after ~3m with amplitude in the GV/m range. Later a low energy (~10MeV) witness e- bunch will be injected at the SMI saturation point. Energy gain over ~7m of plasma can reach the GeV level. Translation from physics to experimental plan and setup will be presented.
* A. Caldwell et al., Nature Physics 5, 363 (2009)
** N. Kumar et al., Phys. Rev. Lett. 104, 255003 (2010)
 
 
TUPEA048 Simulation of Self-modulating Particle Beams in Plasma Wakefield Accelerators 1238
 
  • K.V. Lotov
    BINP SB RAS, Novosibirsk, Russia
  • K.V. Lotov, A. Sosedkin
    NSU, Novosibirsk, Russia
  • E. Mesyats
    ICM&MG SB RAS, Novosibirsk, Russia
 
  Funding: The Ministry of education and science of Russia, project 14.B37.21.0784.
Controlled self-modulation of long proton or electron beams is a new trend in plasma wakefield acceleration which sets a new goal for simulation codes. Long interaction lengths (tens of meters), long beams (up to hundred of plasma wave periods), motion of plasma ions, and violation of fluid approximation are factors that makes the problem too heavy for general purpose codes. Only specialized codes can attack this problem in real geometry. We describe recent upgrades of the code LCODE which enabled simulations of long dense proton beams and report results of numerical studies of proton beam-plasma interaction in the context of AWAKE project.
 
 
TUPEA048 Simulation of Self-modulating Particle Beams in Plasma Wakefield Accelerators 1238
 
  • K.V. Lotov
    BINP SB RAS, Novosibirsk, Russia
  • K.V. Lotov, A. Sosedkin
    NSU, Novosibirsk, Russia
  • E. Mesyats
    ICM&MG SB RAS, Novosibirsk, Russia
 
  Funding: The Ministry of education and science of Russia, project 14.B37.21.0784.
Controlled self-modulation of long proton or electron beams is a new trend in plasma wakefield acceleration which sets a new goal for simulation codes. Long interaction lengths (tens of meters), long beams (up to hundred of plasma wave periods), motion of plasma ions, and violation of fluid approximation are factors that makes the problem too heavy for general purpose codes. Only specialized codes can attack this problem in real geometry. We describe recent upgrades of the code LCODE which enabled simulations of long dense proton beams and report results of numerical studies of proton beam-plasma interaction in the context of AWAKE project.