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Title: Demonstration of a positron beam-driven hollow channel plasma wakefield accelerator

Journal Article · · Nature Communications
DOI:https://doi.org/10.1038/ncomms11785· OSTI ID:1272150

Plasma wakefield accelerators have been used to accelerate electron and positron particle beams with gradients that are orders of magnitude larger than those achieved in conventional accelerators. In addition to being accelerated by the plasma wakefield, the beam particles also experience strong transverse forces that may disrupt the beam quality. Hollow plasma channels have been proposed as a technique for generating accelerating fields without transverse forces. In this study, we demonstrate a method for creating an extended hollow plasma channel and measure the wakefields created by an ultrarelativistic positron beam as it propagates through the channel. The plasma channel is created by directing a high-intensity laser pulse with a spatially modulated profile into lithium vapour, which results in an annular region of ionization. A peak decelerating field of 230 MeV m-1 is inferred from changes in the beam energy spectrum, in good agreement with theory and particle-in-cell simulations.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
1272150
Journal Information:
Nature Communications, Vol. 7; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 76 works
Citation information provided by
Web of Science

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Cited By (14)

Plasma wakefield acceleration experiments at FACET II journal January 2018
High-quality positrons from a multi-proton bunch driven hollow plasma wakefield accelerator journal January 2019
Plasma-based accelerators: then and now journal August 2019
Directions in plasma wakefield acceleration
  • Hidding, B.; Foster, B.; Hogan, M. J.
  • Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Vol. 377, Issue 2151 https://doi.org/10.1098/rsta.2019.0215
journal June 2019
Polarized electron acceleration in beam-driven plasma wakefield based on density down-ramp injection journal October 2019
Generation of High-Power, Reversed-Cherenkov Wakefield Radiation in a Metamaterial Structure journal January 2019
Plasma accelerator-based ultrabright x-ray beams from ultrabright electron beams conference September 2019
Model-Independent Tuning for Maximizing Free Electron Laser Pulse Energy text January 2019
Positron transport and acceleration in beam-driven plasma wakefield accelerators using plasma columns text January 2019
Plasma accelerator-based ultrabright x-ray beams from ultrabright electron beams text January 2019
Positron transport and acceleration in beam-driven plasma wakefield accelerators using plasma columns text January 2019
Measurement of transverse wakefields induced by a misaligned positron bunch in a hollow channel plasma accelerator text January 2018
A near-ideal dechirper for plasma-based electron and positron acceleration using a hollow channel plasma text January 2018
Phase space dynamics of a plasma wakefield dechirper for energy spread reduction text January 2019

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