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Related papers: Seeding of proton bunch self-modulation by an elec…

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We propose a new method for self-injection of high-quality electron bunches in the plasma wakefield structure in the blowout regime utilizing a "flying focus" produced by a drive beam with an energy chirp. In a flying focus the speed of the…

We describe an electron bunch injector scheme based on proton-driven plasma wakefield acceleration for the Electron-Ion Collider. The proton bunches needed to drive the plasma wake are taken from the existing Blue-Ring of RHIC. The…

Accelerator Physics · Physics 2026-05-11 J. P. Farmer , H. Jaworska , A. Caldwell , N. Lopes , A. Pukhov , L Reichwein , F. Willeke , M. Wing

The spectroscopy of betatron radiation from the focusing plasma column can work as a powerful non-invasive beam diagnostic method for plasma wakefield acceleration experiments such as the AWAKE. In this paper, the effects of radial size…

Accelerator Physics · Physics 2022-04-29 Linbo Liang , Guoxing Xia , Hossein Saberi , John Patrick Farmer , Alexander Pukhov

We explore the role of the background plasma ion motion in self-modulated plasma wakefield accelerators. We employ J. Dawson's plasma sheet model to derive expressions for the transverse plasma electric field and ponderomotive force in the…

Plasma Physics · Physics 2014-09-16 J. Vieira , R. A. Fonseca , W. B. Mori , L. O. Silva

Earlier, the authors found a mechanism for the sequence of short relativistic electron bunches, which leads to resonant excitation of the wakefield, even if the repetition frequency of bunches differs from the plasma frequency. In this…

Plasma Physics · Physics 2020-09-10 D. S. Bondar , I. P. Levchuk , V. I. Maslov , I. N. Onishchenko

External injection of electron bunches longer than the plasma wavelength in a laser wakefield accelerator can lead to the generation of femtosecond ultrarelativistic bunches with a couple of percent energy spread. Extensive study has been…

Plasma Physics · Physics 2009-07-02 M. J. H. Luttikhof , A. G. Khachatryan , F. A. van Goor , K. -J. Boller

It is demonstrated that the performance of the self-modulated proton driver plasma wakefield accelerator (SM-PDPWA) is strongly affected by the reduced phase velocity of the plasma wave. Using analytical theory and particle-in-cell…

Plasma Physics · Physics 2015-05-30 A. Pukhov , N. Kumar , T. Tückmantel , A. Upadhyay , K. Lotov , P. Muggli , V. Khudik , C. Siemon , G. Shvets

We demonstrate a novel approach to the generation of femtosecond electron bunch trains via laser-driven wakefield acceleration. We use two independent high-intensity laser pulses, a drive, and injector, each creating their own plasma wakes.…

Effects of plasma inhomogeneity on self-modulating proton bunches and accelerated electrons were studied numerically. The main effect is the change of the wakefield wavelength which results in phase shifts and loss of accelerated particles.…

Plasma Physics · Physics 2013-07-16 K. V. Lotov , A. Pukhov , A. Caldwell

Plasma wakefields offer high acceleration gradients, orders of magnitude larger than conventional RF accelerators. However, the achievable luminosity remains relatively low, typically limited by repetition rate and the charge accelerated…

Accelerator Physics · Physics 2025-02-13 John P. Farmer , Giovanni Zevi Della Porta

High repetition rates and efficient energy transfer to the accelerating beam are important for a future linear collider based on the beam-driven plasma wakefield acceleration scheme (PWFA-LC). This paper reports the first results from the…

Initial simulations investigating using the RHIC-EIC proton beam as the drive beam in a plasma wakefield acceleration experiment are presented. The proton beam enters the plasma and undergoes self-modulation, forming a series of…

Plasma Physics · Physics 2019-07-03 James Chappell , Allen Caldwell , Matthew Wing

In plasma-based acceleration, an ultra-relativistic particle bunch$\unicode{x2014}$or an intense laser beam$\unicode{x2014}$is used to expel electrons from its propagation path, forming a wake that is devoid of electrons. The ions, being…

The plasma photocathode has previously been proposed as a source of ultra-high-brightness electron bunches within plasma accelerators. Here, the scheme is extended by using a radially-polarized ionizing laser pulse to generate high-charge,…

Accelerator Physics · Physics 2025-10-16 James Chappell , Emily Archer , Roman Walczak , Simon Hooker

Relativistic wakes produced by intense laser or particle beams propagating through plasmas are being considered as accelerators for next generation of colliders and coherent light sources. Such wakes have been shown to accelerate electrons…

Plasma Physics · Physics 2016-10-19 C. J. Zhang , J. F. Hua , Y. Wan , B. Guo , Y. P. Wu , C. -H. Pai , F. Li , H. -H. Chu , Y. Q. Gu , X. L. Xu , W. B. Mori , C. Joshi , J. Wang , W. Lu

Plasma wakefield acceleration, either laser driven or electron-bunch driven, has been demonstrated to hold great potential. However, it is not obvious how to scale these approaches to bring particles up to the TeV regime. In this paper, we…

Accelerator Physics · Physics 2015-05-13 Allen Caldwell , Konstantin Lotov , Alexander Pukhov , Frank Simon

A method based on laser wakefield acceleration with controlled ionization injection triggered by another frequency-tripled laser is proposed, which can produce electron bunches with low energy spread. As two color pulses co-propagate in the…

Wakefield acceleration methods are known due to some their advantages. The main of them is the high accelerating gradient up to several teravolts per meter. In the paper another important advantage is concluded to the possibility of using a…

Plasma Physics · Physics 2024-09-23 D. S. Bondar , V. I. Maslov , I. N. Onishchenko

Laser wakefield acceleration is a widely studied method for accelerating charged particle bunches, with selfinjection being a key feature. However, as the bunch accelerates beyond the driver velocity, it shifts out of the maximal…

Accelerator Physics · Physics 2025-09-04 D. S. Bondar , W. Leemans , V. I. Maslov , I. N. Onishchenko

Photon acceleration (PA) driven by ultra-relativistic electron beams offers a promising approach to generating high-power, high-frequency coherent radiation sources. While current methods typically rely on external optical laser pulses…

Plasma Physics · Physics 2025-06-10 Chaolu Ding , Xuesong Geng , Liangliang Ji