Researchers demonstrate miniaturized, laser-driven particle accelerator

particle accelerator
Credit: CC0 Public Domain

Munich physicists have succeeded in demonstrating plasma wakefield acceleration of subatomic particles in a miniaturized, laser-driven model. The new system provides a broader basis for the development of the next generation of particle accelerators.

The (PWFA) technique is regarded as a highly promising route to the next generation of particle accelerators. In this approach, a pulse of high-energy electrons is injected into a preformed , and creates a wake upon which other electrons can effectively surf. In this way, their energy can surpass that of the driver by a factor of two to five.

However, many technical and physical problems must be resolved before the technology becomes practical. This is no easy task, as only large-scale particle accelerators, such as those at DESY, CERN or SLAC, are currently capable of producing the driver pulses needed to generate the wakefield. A team led by ProfessorStefan Karschat the Laboratory of Attosecond Physics (LAP) has now shown that PWFA can be implemented in university labs. The new findings will facilitate further investigation of the PWFA concept as a basis for the development of compact, next-generation particle accelerators.


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More information: M. F. Gilljohann et al. Direct Observation of Plasma Waves and Dynamics Induced by Laser-Accelerated Electron Beams, Physical Review X (2019). DOI: 10.1103/PhysRevX.9.011046
Journal information: Physical Review X

Citation: Researchers demonstrate miniaturized, laser-driven particle accelerator (2019, March 27) retrieved 22 April 2019 from https://phys.org/news/2019-03-miniaturized-laser-driven-particle.html
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