262 citations · 1.2k across the 29 of their papers we have counts for
14 papers · 1 filter
Dissipation of electron-beam-driven plasma wakes
Rafal Zgadzaj, Zhengyan Li, M. C. Downer +10
Metre-scale plasma wakefield accelerators have imparted energy gain approaching 10 gigaelectronvolts to single nano-Coulomb electron bunches. To reach useful average currents, howe…
Accelerating field enhancement due to ion motion in plasma wakefield accelerators
V. A. Minakov, A. P. Sosedkin, K. V. Lotov
Ion motion in plasma wakefield accelerators can cause temporal increase of the longitudinal electric field shortly before the wave breaks. The increase is caused by re-distribution…
Dissipation of weakly nonlinear wakefields due to ion motion
R. I. Spitsyn, I. V. Timofeev, A. P. Sosedkin +1
In an initially uniform plasma, the lifetime of a weakly nonlinear plasma wave excited by a short driver is limited by the ion dynamics. The wakefield contains a slowly varying rad…
Witness emittance growth caused by driver density fluctuations in plasma wakefield accelerators
V. A. Minakov, M. Tacu, A. P. Sosedkin +1
We discovered a novel effect that can cause witness emittance growth in plasma wakefield accelerators. The effect appears in linear or moderately nonlinear plasma waves. The witnes…
Response of narrow cylindrical plasmas to dense charged particle beams
A. A. Gorn, P. V. Tuev, A. V. Petrenko +2
By combining the linear theory and numerical simulations, we study the response of a radially bounded axisymmetric plasma to relativistic charged particle beams in a wide range of…
Plasma electron trapping in quasistatic simulations of plasma wakefield acceleration
P. V. Tuev, A. P. Sosedkin, K. V. Lotov
Plasma wakefield acceleration studies currently rely considerably on simulating this effect numerically using highly specialized software. Exorbitant computational difficulty of th…
AWAKE readiness for the study of the seeded self-modulation of a 400\,GeV proton bunch
P. Muggli, E. Adli, R. Apsimon +104
AWAKE is a proton-driven plasma wakefield acceleration experiment. % We show that the experimental setup briefly described here is ready for systematic study of the seeded self-mod…
Path to AWAKE: Evolution of the concept
A. Caldwell, E. Adli, L. Amorim +118
This report describes the conceptual steps in reaching the design of the AWAKE experiment currently under construction at CERN. We start with an introduction to plasma wakefield ac…
Numerical Studies of Electron Acceleration Behind Self-Modulating Proton Beam in Plasma with a Density Gradient
Alexey Petrenko, Konstantin Lotov, Alexander Sosedkin
Presently available high-energy proton beams in circular accelerators carry enough momentum to accelerate high-intensity electron and positron beams to the TeV energy scale over se…
LCODE: a parallel quasistatic code for computationally heavy problems of plasma wakefield acceleration
Alexander Sosedkin, Konstantin Lotov
LCODE is a freely-distributed quasistatic 2D3V code for simulating plasma wakefield acceleration, mainly specialized at resource-efficient studies of long-term propagation of ultra…
Electron trapping and acceleration by the plasma wakefield of a self-modulating proton beam
K. V. Lotov, A. P. Sosedkin, A. V. Petrenko +6
It is shown that co-linear injection of electrons or positrons into the wakefield of the self-modulating particle beam is possible and ensures high energy gain. The witness beam mu…
Parameter sensitivity of plasma wakefields driven by self-modulating proton beams
K. V. Lotov, V. A. Minakov, A. P. Sosedkin
The dependence of wakefield amplitude and phase on beam and plasma parameters is studied in the parameter area of interest for self-modulating proton beam-driven plasma wakefield a…
Long-term evolution of broken wakefields in finite radius plasmas
Konstantin Lotov, Alexander Sosedkin, Alexey Petrenko
A novel effect of fast heating and charging a finite-radius plasma is discovered in the context of plasma wakefield acceleration. As the plasma wave breaks, the most of its energy…
Positron acceleration in a hollow plasma channel up to TeV regime
Longqing Yi, Baifei Shen, Liangliang Ji +8
We propose a plasma-based high-energy lepton accelerator, in which a weakly focusing plasma structure is formed near the beam axis. The structure preserves the emittance of the acc…