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Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Budker Institute of Nuclear PhysicsRU2.1k papers
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46 papers · 1 filter
Numerical simulations of a continuously injected relativistic electron beam relaxation into a plasma with large-scale density gradients
Vladimir Annenkov, Evgeniia Volchok
In this paper the influence of large-scale decreasing and increasing gradients of the density of magnetized plasma on the relaxation process of a continuously injected relativistic…
Controlled Growth of the Self-Modulation of a Relativistic Proton Bunch in Plasma
L. Verra
A long, narrow, relativistic charged particle bunch propagating in plasma is subject to the self-modulation (SM) instability. We show that SM of a proton bunch can be seeded by the…
Wall stabilization of the rigid ballooning mode in a long-thin mirror trap
Igor Kotelnikov, Vadim Prikhodko, Dmitri Yakovlev +4
The prospect of stabilization of the ``rigid'' ballooning mode in an open axially symmetric long-thin trap with the help of a conducting lateral wall surrounding a column of…
Simulation and Experimental Study of Proton Bunch Self-Modulation in Plasma with Linear Density Gradients
P. I. Morales Guzmán, P. Muggli, R. Agnello +88
We present numerical simulations and experimental results of the self-modulation of a long proton bunch in a plasma with linear density gradients along the beam path. Simulation re…
Transition between Instability and Seeded Self-Modulation of a Relativistic Particle Bunch in Plasma
F. Batsch, P. Muggli, R. Agnello +94
We use a relativistic ionization front to provide various initial transverse wakefield amplitudes for the self-modulation of a long proton bunch in plasma. We show experimentally t…
Electromagnetic emission due to nonlinear interaction of laser wakefields colliding in plasma at an oblique angle
E. Volchok, V. Annenkov, I. Timofeev
Head-on collision of laser-induced plasma wakefields with differing profiles of electrostatic potential has been recently found to be an efficient mechanism for generating high-pow…
Electromagnetic Emission Produced by Three-wave Interactions in a Plasma with Continiously Injected Counterstreaming Electron Beams
V. V. Annenkov, E. P. Volchok, I. V. Timofeev
Three-wave interactions between Langmuir and electromagnetic waves in plasma with unstable electron flows are believed to be the main cause for type II and III solar radio emission…
Proton Bunch Self-Modulation in Plasma with Density Gradient
F. Braunmüller, T. Nechaeva, AWAKE Collboration
We study experimentally the effect of linear plasma density gradients on the self-modulation of a 400\,GeV proton bunch. Results show that a positive/negative gradient in/decreases…
Attenuation of waveguide modes in narrow metal capillaries
P. V. Tuev, K. V. Lotov
The channeling of laser pulses in waveguides filled with a rare plasma is one of promising techniques of laser wakefield acceleration. A solid-state capillary can precisely guide t…
Collisionless particle dynamic in an axi-symmetric diamagnetic trap
Ivan Chernoshtanov
Particle dynamic in an axi-symmetric mirror machine with an extremely high plasma pressure equal to pressure of vacuum magnetic field (so-called regime of diamagnetic confinement)…
Highly efficient electromagnetic emission during 100 keV electron beam relaxation in a thin magnetized plasma
V. V. Annenkov, I. V. Timofeev, E. P. Volchok
In this paper, electromagnetic emissions produced by a beam-plasma system are investigated using particle-in-cell simulations for the particular case when the typical transverse si…
Second harmonic electromagnetic emission in a beam-driven plasma antenna
V. V. Annenkov, E. A. Berendeev, E. P. Volchok +1
Generation of electromagnetic radiation near the second harmonic of the plasma frequency during the injection of an electron beam into a rippled-density plasma channel is investiga…
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…
AWAKE-related benchmarking tests for simulation codes
K. V. Lotov
Two tests are described that were developed for benchmarking and comparison of numerical codes in the context of AWAKE experiment.
Role of Helium-Hydrogen ratio on energetic interchange mode behaviour and its effect on ion temperature and micro-turbulence in LHD
C. A. Michael, K. Tanaka, T. Akiyama +9
In the Large helical device, a change of energetic particle mode is observed as He concentration is varied in ion-ITB type experiments, having constant electron density and input h…
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…
Generation of controllable plasma wakefield noise in particle-in-cell simulations
Nils Moschuering, Hartmut Ruhl, Roman Spitsyn +1
Numerical simulations of beam-plasma instabilities may produce quantitatively incorrect results because of unrealistically high initial noise from which the instabilities develop.…
Radial equilibrium of relativistic particle bunches in plasma wakefield accelerators
K. V. Lotov
Drive particle beams in linear or weakly nonlinear regimes of the plasma wakefield accelerator quickly reach a radial equilibrium with the wakefield, which is described in detail f…
Generation of high-field narrowband terahertz radiation by counterpropagating plasma wakes
I. V. Timofeev, V. V. Annenkov, E. P. Volchok
It is found that nonlinear interaction of plasma wakefields driven by counterpropagating laser or particle beams can efficiently generate high-power electromagnetic radiation at th…
Diamagnetic "bubble" equilibria in linear traps
Alexei D. Beklemishev
The plasma equilibrium in a linear trap at (or above the mirror-instability threshold) under the topology-conservation constraint evolves into a kind of diamagnetic "b…
Modification of narrow ablating capillaries under the influence of multiple femtosecond laser pulses
K. V. Gubin, K. V. Lotov, V. I. Trunov +1
Powerful femtosecond laser pulses that propagate through narrow ablating capillaries cause modification of capillary walls, which is studied experimentally and theoretically. At lo…
Simulations of electromagnetic emissions produced in a thin plasma by a continuously injected electron beam
V. V. Annenkov, I. V. Timofeev, E. P. Volchok
In this paper, electromagnetic emissions produced in a thin beam-plasma system are studied using two-dimensional particle-in-cell simulations. For the first time, the problem of em…
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…