English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

The emergence of multi-petawatt laser facilities is expected to push forwardthe maximum energy gain that can be achieved in a single stage of a LWFA totens of GeV, which begs the question - is it likely to impact particle physicsby providing a truly compact particle collider? Colliders have very stringentrequirements on beam energy, acceleration efficiency and beam quality. In thisarticle, we propose a LWFA scheme that can for the first time simultaneouslyachieve hitherto unrealized acceleration efficiency from the laser to theelectron beam of >20% and a sub-one percent energy spread using a stepwiseplasma structure and a nonlinearly chirped laser pulse. Three-dimensionalhigh-fidelity simulations show that the nonlinear chirp can effectivelymitigate the laser waveform distortion and lengthen the acceleration distance.This combined with an inter-stage rephasing process in the stepwise plasma cantriple the beam energy gain compared to that in a uniform plasma for a fixedlaser energy thereby dramatically increasing the efficiency. A dynamic beamloading effect can almost perfectly cancel the energy chirp that arises duringthe acceleration, leading to the sub-percent energy spread. This scheme ishighly scalable and can be applied to peta-watt LWFA scenarios. Scaling lawsare obtained that suggest electron beams with energy gain of >100 GeV, chargeof 2 nC, and with an energy spread <1% can be realized with a high laser pulseto particle beam energy transfer efficiency in a LWFA driven by a peta-wattlaser, which could be the basis for a proof of concept of one arm of a futureelectron-positron collider.

A Scalable, High-Efficiency, Low-Energy-Spread, Laser Wakefield Accelerator using a Tri-plateau Plasma Channel