Featured
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Article
| Open Access
Recovery time of a plasma-wakefield accelerator
Relaxation of a perturbed plasma back to its initial state over nanosecond timescales establishes that megahertz repetition rates are supported, and high luminosities and brilliances are in principle attainable with plasma-wakefield accelerator facilities.
- R. D’Arcy
- , J. Chappell
- & J. Osterhoff
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Article
| Open Access
In-orbit demonstration of an iodine electric propulsion system
The successful in-orbit operation of an electric space propulsion system based on iodine, rather than the more expensive and difficult-to-store xenon, is demonstrated.
- Dmytro Rafalskyi
- , Javier Martínez Martínez
- & Ane Aanesland
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Article |
Free-electron lasing at 27 nanometres based on a laser wakefield accelerator
Lasing in the extreme-ultraviolet range is demonstrated using a laser wakefield accelerator, as a step towards compact X-ray free-electron lasers.
- Wentao Wang
- , Ke Feng
- & Zhizhan Xu
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Letter
| Open Access
Acceleration of electrons in the plasma wakefield of a proton bunch
Electron acceleration to very high energies is achieved in a single step by injecting electrons into a ‘wake’ of charge created in a 10-metre-long plasma by speeding long proton bunches.
- E. Adli
- , A. Ahuja
- & G. Xia
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Letter |
Multistage coupling of independent laser-plasma accelerators
Laser-plasma particle accelerators offer much higher acceleration than conventional methods, which could enable high-energy applications; here two separate accelerator stages, driven by two independent lasers, are coupled using plasma-based optics.
- S. Steinke
- , J. van Tilborg
- & W. P. Leemans
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Letter |
Multi-gigaelectronvolt acceleration of positrons in a self-loaded plasma wakefield
A particle accelerator that is two orders of magnitude more efficient than conventional radio-frequency accelerators is described in which positrons (rather than electrons) at the front of a bunch transfer their energy to a substantial number of positrons at the rear of the same bunch by exciting a wakefield in the plasma.
- S. Corde
- , E. Adli
- & G. Yocky
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Letter |
High-efficiency acceleration of an electron beam in a plasma wakefield accelerator
To develop plasma wakefield acceleration into a compact and affordable replacement for conventional accelerators, beams of charged particles must be accelerated at high efficiency in a high electric field; here this is demonstrated for a bunch of charged electrons ‘surfing’ on a previously excited plasma wave.
- M. Litos
- , E. Adli
- & G. Yocky
Free-electron lasing with compact beam-driven plasma wakefield accelerator