High Efficiency Uniform Wakefield Acceleration of a Positron Beam Using Stable Asymmetric Mode in a Hollow Channel Plasma

Zhou, Shiyu; Hua, Jianfei; An, Weiming; Mori, W. B.; Joshi, C.; Gao, Jie; Lü, Wei

doi:10.1103/physrevlett.127.174801

Cited by 28 publications

(11 citation statements)

References 27 publications

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“…We underline that the dense electron beams with tens of nC charge and hundreds of MeV energy can be generated through the direct laser acceleration [77,78] or laser wakefield acceleration (LWFA) [79,80]. The interaction of laser-wakefield electron beams with high-Z target induce the production of the positron shower with tens of nC charge and the energy exceeding 100 MeV [81,82], which could be trapped and accelerated as a high-quality beam in the laser (beam) wakefield [83][84][85]. Thus the laser-driven electron and positron beams with ultrahigh charge afford the ultrahigh-luminosity laser-plasma linear collider for the generation of e − e + → µ − µ + muon source.…”

Section: I)mentioning

confidence: 99%

Generation of arbitrarily polarized muon pairs via polarized $e^-e^+$ collision

Lu,

Zhao,

Wan

et al. 2022

Preprint

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Generation of arbitrarily spin polarized muon pairs is investigated via polarized e − e + collision. We calculate the fully spin-resolved cross section dσ e − e + →µ − µ + and utilize the Monte Carlo method of binary collision to describe the production and polarization processes of muon pairs. We find that, due to the dependence of mixed helicities on the scattering angle, arbitrarily polarized muon pairs with both of the longitudinal and transverse spin components can be produced. The collision of tightly collimated electron and positron beams with highly longitudinal polarization and nC charge can generate about 40% muon pairs with longitudinal polarization and about 60% muon pairs with transverse polarization. The compact high-flux e − e + → µ − µ + muon source could be implemented through the next-generation laser-plasma linear collider, and would be essential to facilitate the investigation of fundamental physics and the measurement technology in broad areas.

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Section: I)mentioning

confidence: 99%

Generation of arbitrarily polarized muon pairs via polarized $e^-e^+$ collision

Lu,

Zhao,

Wan

et al. 2022

Preprint

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“…Although hollow core plasma channels are a promising candidate, 13,14 they suffer from intrinsic beam-breakup instability due to the absence of focusing fields for the drive beam. 13,15 Using asymmetric drive beams provides stability in at least one direction, 16 but only positron beams with large beam emittances (>50 lm rad) have been accelerated in simulations, which is too large for collider applications. The wake generated in a thin, warm, quasi-hollow plasma channel provides accelerating fields for positrons while being robust against instabilities.…”

Section: Introductionmentioning

confidence: 99%

Stable electron beam propagation in a plasma column

et al. 2022

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The stability of plasma-based accelerators against transverse misalignments and asymmetries of the drive beam is crucial for their applicability. Without stabilizing mechanisms, even small initial offsets of the drive beam centroid can couple coherently to the plasma wake, grow, and ultimately lead to emittance degradation or beam loss for a trailing witness beam. In this work, we demonstrate the intrinsic stability of a beam propagating in a plasma column. This result is relevant in the context of plasma-based positron acceleration, where a wakefield suitable for the transport and acceleration of a positron witness beam is generated in a plasma column by means of an electron drive beam. The stable propagation of the drive beam is a necessary condition for the experimental implementation of this scheme. The differences and similarities of stabilizing mechanisms in a plasma column compared to a homogeneous plasma are identified via theory and particle-in-cell simulations. Experimental tolerances are given, demonstrating the experimental feasibility of the scheme.

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“…It was predicted [33,34] and recently experimentally demonstrated [35] that highly elliptic driver can suppress transverse wake in a structure based wakefield accelerating device. It turns out that asymmetric drivers are favorable and promising approach in the hollow channel plasma as well [36].…”

Section: Introductionmentioning

confidence: 99%

Flat bubble regime and laminar plasma flow in a plasma wake field accelerator

Baturin

2022

Preprint

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A simple 2D model of the bubble formation in a plasma wakefield accelerator is developed and investigated. It is shown that in the case of a flat driver the bubble may consist of two parts that correspond to two different types of the plasma flow: a laminar flow where plasma electron streams do not cross and a two-stream (turbulent) flow. The laminar flow turns out to be robust to the symmetry breaking. Building-of of the developed model we demonstrate that in the case of the laminar flow and non-relativistic plasma electrons the transverse wake field is absent inside the bubble even in the case of a transversely nonuniform plasma.

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High Efficiency Uniform Wakefield Acceleration of a Positron Beam Using Stable Asymmetric Mode in a Hollow Channel Plasma

Cited by 28 publications

References 27 publications

Generation of arbitrarily polarized muon pairs via polarized $e^-e^+$ collision

Generation of arbitrarily polarized muon pairs via polarized $e^-e^+$ collision

Stable electron beam propagation in a plasma column

Flat bubble regime and laminar plasma flow in a plasma wake field accelerator

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