Publication

Quantitative study of the trapped particle bunching instability in Langmuir waves

Stephan Brunner
2015
Journal Articles

Abstract

The bunching instability of particles trapped in Langmuir waves is studied using Vlasov simulations. A measure of particle bunching is defined and used to extract the growth rate from numerical simulations, which are compared with theory [Dodin et al., Phys. Rev. Lett. 110, 215006 ( 2013)]. In addition, the general theory of trapped particle instability in 1D is revisited and a more accurate description of the dispersion relation is obtained. Excellent agreement between numerical and theoretical predictions of growth rates of the bunching instability is shown over a range of parameters. (C) 2015 AIP Publishing LLC.

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https://infoscience.epfl.ch/entities/publication/3bc5921d-187f-4728-8b64-ef959dc4be8b

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Stephan Brunner
2015
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/3bc5921d-187f-4728-8b64-ef959dc4be8b

About this result

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A particle accelerator is a machine that uses electromagnetic fields to propel charged particles to very high speeds and energies, and to contain them in well-defined beams. Large accelerators are used for fundamental research in particle physics. The largest accelerator currently active is the Large Hadron Collider (LHC) near Geneva, Switzerland, operated by the CERN. It is a collider accelerator, which can accelerate two beams of protons to an energy of 6.5 TeV and cause them to collide head-on, creating center-of-mass energies of 13 TeV.

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