scholarly journals PLATEAU FORMATION ON ACCELERATING WAKEFIELD FOR ELECTRON-WITNESS-BUNCH AND ON DECELERATING WAKEFIELD FOR DRIVER-BUNCHES IN A PLASMA

2021 ◽  
pp. 52-56
Author(s):  
V.I. Maslov ◽  
R.T. Ovsiannikov ◽  
D.S. Bondar ◽  
I.P. Levchuk ◽  
I.N. Onishchenko
Keyword(s):  
High Efficiency ◽  
Beam Quality ◽  
High Beam ◽  
Beam Loading ◽  
Wakefield Acceleration ◽  
Plasma Wakefield Accelerators ◽  
Optimal Beam ◽  
Pic Code ◽  
Plasma Wakefield ◽  
Compact Sources

Plasma wakefield acceleration promises compact sources of high-brightness relativistic electron and positron beams. Applications (particle colliders and free-electron lasers) of plasma wakefield accelerators demand low ener-gy spread beams and high-efficiency operation. Achieving both requires plateau formation on both the accelerating field for witness-bunch and the decelerating fields for driver-bunches by controlled beam loading of the plasma wave with careful tailored current profiles. We demonstrate by numerical simulation by 2.5D PIC code LCODE such optimal beam loading in a linear and blowout electron-driven plasma accelerator with RF generated low and high beam charge and high beam quality.

scholarly journals Betatron radiation and emittance growth in plasma wakefield accelerators

2019 ◽  
Vol 377 (2151) ◽  
pp. 20180173 ◽  
Author(s):  
P. San Miguel Claveria ◽  
E. Adli ◽  
L. D. Amorim ◽  
W. An ◽  
C. E. Clayton ◽  
...  
Keyword(s):  
Experimental Tests ◽  
Particle Beam ◽  
The Past ◽  
Wakefield Acceleration ◽  
Emittance Growth ◽  
Plasma Wakefield Accelerators ◽  
Under Construction ◽  
Plasma Wakefield ◽  
New Facility ◽  
Present Simulation

Beam-driven plasma wakefield acceleration (PWFA) has demonstrated significant progress during the past two decades of research. The new Facility for Advanced Accelerator Experimental Tests (FACET) II, currently under construction, will provide 10 GeV electron beams with unprecedented parameters for the next generation of PWFA experiments. In the context of the FACET II facility, we present simulation results on expected betatron radiation and its potential application to diagnose emittance preservation and hosing instability in the upcoming PWFA experiments. This article is part of the Theo Murphy meeting issue ‘Directions in particle beam-driven plasma wakefield acceleration’.

scholarly journals Eupraxia, A Step Toward A Plasma-Wakefield Based Accelerator With High Beam Quality

2019 ◽  
Vol 1350 ◽  
pp. 012068 ◽  
Author(s):  
P A P Nghiem ◽  
D Alesini ◽  
A Aschikhin ◽  
R W Assmann ◽  
T Audet ◽  
...  
Keyword(s):  
Beam Quality ◽  
High Beam ◽  
Plasma Wakefield ◽  
High Beam Quality

scholarly journals High beam quality in two directions and high efficiency output of a diode laser array by spectral-beam-combining

2014 ◽  
Vol 22 (15) ◽  
pp. 17804 ◽  
Author(s):  
Zhanda Zhu ◽  
Long Gou ◽  
Menghua Jiang ◽  
Yongling Hui ◽  
Hong Lei ◽  
...  
Keyword(s):  
Diode Laser ◽  
High Efficiency ◽  
Beam Quality ◽  
Laser Array ◽  
High Beam ◽  
Beam Combining ◽  
Spectral Beam Combining ◽  
High Beam Quality

High-beam quality, high-efficiency laser based on fiber with heavily Yb^3+-doped phosphate core and silica cladding

2015 ◽  
Vol 40 (16) ◽  
pp. 3762 ◽  
Author(s):  
O. N. Egorova ◽  
S. L. Semjonov ◽  
O. I. Medvedkov ◽  
M. S. Astapovich ◽  
A. G. Okhrimchuk ◽  
...  
Keyword(s):  
High Efficiency ◽  
Beam Quality ◽  
High Beam ◽  
High Beam Quality

Optimal design for a diode-pumped high-power high-efficiency high-beam-quality laser

2008 ◽  
Vol 281 (21) ◽  
pp. 5389-5392 ◽  
Author(s):  
Yinghong Xue ◽  
Sadao Uemura ◽  
Kenji Torizuka
Keyword(s):  
Optimal Design ◽  
High Power ◽  
High Efficiency ◽  
Beam Quality ◽  
High Beam ◽  
Diode Pumped ◽  
High Beam Quality

scholarly journals Demonstration of a compact plasma accelerator powered by laser-accelerated electron beams

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
T. Kurz ◽  
T. Heinemann ◽  
M. F. Gilljohann ◽  
Y. Y. Chang ◽  
J. P. Couperus Cabadağ ◽  
...  
Keyword(s):  
Electron Beams ◽  
Hybrid Approach ◽  
Plasma Accelerator ◽  
Power Laser ◽  
Breakdown Threshold ◽  
High Brightness ◽  
Electron Bunches ◽  
Plasma Wakefield Accelerators ◽  
Plasma Wakefield ◽  
Compact Sources

AbstractPlasma wakefield accelerators are capable of sustaining gigavolt-per-centimeter accelerating fields, surpassing the electric breakdown threshold in state-of-the-art accelerator modules by 3-4 orders of magnitude. Beam-driven wakefields offer particularly attractive conditions for the generation and acceleration of high-quality beams. However, this scheme relies on kilometer-scale accelerators. Here, we report on the demonstration of a millimeter-scale plasma accelerator powered by laser-accelerated electron beams. We showcase the acceleration of electron beams to 128 MeV, consistent with simulations exhibiting accelerating gradients exceeding 100 GV m−1. This miniaturized accelerator is further explored by employing a controlled pair of drive and witness electron bunches, where a fraction of the driver energy is transferred to the accelerated witness through the plasma. Such a hybrid approach allows fundamental studies of beam-driven plasma accelerator concepts at widely accessible high-power laser facilities. It is anticipated to provide compact sources of energetic high-brightness electron beams for quality-demanding applications such as free-electron lasers.

Electron and Positron Beam–Driven Plasma Acceleration

2016 ◽  
Vol 09 ◽  
pp. 63-83 ◽  
Author(s):  
Mark J. Hogan
Keyword(s):  
High Efficiency ◽  
Positron Beam ◽  
Building Blocks ◽  
Plasma Waves ◽  
High Energy ◽  
Resolving Power ◽  
Particle Accelerators ◽  
Wakefield Acceleration ◽  
Electrons And Positrons ◽  
Plasma Wakefield

Particle accelerators are the ultimate microscopes. They produce high energy beams of particles — or, in some cases, generate X-ray laser pulses — to probe the fundamental particles and forces that make up the universe and to explore the building blocks of life. But it takes huge accelerators, like the Large Hadron Collider or the two-mile-long SLAC linac, to generate beams with enough energy and resolving power. If we could achieve the same thing with accelerators just a few meters long, accelerators and particle colliders could be much smaller and cheaper. Since the first theoretical work in the early 1980s, an exciting series of experiments have aimed at accelerating electrons and positrons to high energies in a much shorter distance by having them “surf” on waves of hot, ionized gas like that found in fluorescent light tubes. Electron-beam-driven experiments have measured the integrated and dynamic aspects of plasma focusing, the bright flux of high energy betatron radiation photons, particle beam refraction at the plasma–neutral-gas interface, and the structure and amplitude of the accelerating wakefield. Gradients spanning kT/m to MT/m for focusing and 100[Formula: see text]MeV/m to 50[Formula: see text]GeV/m for acceleration have been excited in meter-long plasmas with densities of 10[Formula: see text]–10[Formula: see text][Formula: see text]cm[Formula: see text], respectively. Positron-beam-driven experiments have evidenced the more complex dynamic and integrated plasma focusing, 100[Formula: see text]MeV/m to 5[Formula: see text]GeV/m acceleration in linear and nonlinear plasma waves, and explored the dynamics of hollow channel plasma structures. Strongly beam-loaded plasma waves have accelerated beams of electrons and positrons with hundreds of pC of charge to over 5[Formula: see text]GeV in meter scale plasmas with high efficiency and narrow energy spread. These “plasma wakefield acceleration” experiments have been mounted by a diverse group of accelerator, laser and plasma researchers from national laboratories and universities around the world. This article reviews the basic principles of plasma wakefield acceleration with electron and positron beams, the current state of understanding, the push for first applications and the long range R&D roadmap toward a high energy collider.

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