Simulation of proton driven plasma wakefield acceleration

Lotov, K. V.

doi:10.1103/physrevstab.13.041301

Cited by 56 publications

(68 citation statements)

References 19 publications

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“…Equation (7) indicates that a beam tilt or nonuniform head-to-tail displacement with respect to the beam propagation direction x c (ζ) = x c (ζ ) is required for the hose instability. This is similar to the centroid equation describing laser hosing for which a head-to-tail centroid non-uniformity is also required for instability [18].…”

Section: Beam Centroid Evolutionmentioning

confidence: 99%

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Coupled beam hose and self-modulation instabilities in overdense plasma

et al. 2012

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Transverse stability of the drive beam is critical to plasma wakefield accelerators. A long, relativistic particle beam propagating in an overdense plasma is subject to beam envelope modulation and centroid displacement (hosing) instabilities. Coupled equations for the beam centroid and envelope are derived and solved. It is shown that the hosing growth rate is comparable to selfmodulation, and coupling of the self-modulation enhances beam hosing and induces harmonic content. Large amounts of hosing can significantly alter the structure of the plasma wakefields.

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Section: Beam Centroid Evolutionmentioning

confidence: 99%

“…It has been proposed to use a highly relativistic proton beam, such as those available at CERN (European Organization for Nuclear Research), to drive a plasma accelerator [6,7], effectively using the plasma to transfer energy from the proton beam to a lepton beam.…”

Section: Introductionmentioning

confidence: 99%

Coupled beam hose and self-modulation instabilities in overdense plasma

et al. 2012

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“…[2][3][4] It has been proposed to drive a PWFA with a highly relativistic proton beam, such as those available at CERN (European Organization for Nuclear Research). 5,6 Plasma wave excitation requires a drive beam density profile with frequency components at the plasma frequency, i.e., a beam density longitudinal scale length on the order of…”

mentioning

confidence: 99%

Particle beam self-modulation instability in tapered and inhomogeneous plasma

et al. 2012

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The particle beam self-modulation instability in tapered and inhomogeneous plasmas is analyzed via an evolution equation for the beam radius. For a sufficiently fast taper the instability is suppressed, and the condition for growth suppression is derived. The form of the taper to phase lock a trailing witness bunch in the plasma wave driven by a self-modulated beam is determined, which can increase the energy gain by several orders of magnitude. Growth of the instability places stringent constraints on the initial background plasma density fluctuations.

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“…1 The interest is motivated by the ability of plasmas to support extremely strong electric fields 2 and by the availability of proton beams carrying tens of kilojoules of energy in a single bunch. 3 The high energy content of proton beams makes it possible to accelerate multi-nanocoulomb electron bunches to sub-teraelectronvolt energies and beyond in a single plasma stage, 4,5 which is the main advantage of PDPWA over other plasma wakefield acceleration schemes.…”

Section: Introductionmentioning

confidence: 99%

Electron trapping and acceleration by the plasma wakefield of a self-modulating proton beam

et al. 2014

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It is shown that co-linear injection of electrons or positrons into the wakefield of the selfmodulating particle beam is possible and ensures high energy gain. The witness beam must copropagate with the tail part of the driver, since the plasma wave phase velocity there can exceed the light velocity, which is necessary for efficient acceleration. If the witness beam is many wakefield periods long, then the trapped charge is limited by beam loading effects. The initial trapping is better for positrons, but at the acceleration stage a considerable fraction of positrons is lost from the wave. For efficient trapping of electrons, the plasma boundary must be sharp, with the density transition region shorter than several centimeters. Positrons are not susceptible to the initial plasma density gradient.

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Simulation of proton driven plasma wakefield acceleration

Cited by 56 publications

References 19 publications

Coupled beam hose and self-modulation instabilities in overdense plasma

Coupled beam hose and self-modulation instabilities in overdense plasma

Particle beam self-modulation instability in tapered and inhomogeneous plasma

Electron trapping and acceleration by the plasma wakefield of a self-modulating proton beam

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