Abstract
Non-gaussian velocity distribution of microparticles in plasma under microgravity conditions
2011 Abstracts IEEE International Conference on Plasma Science, pp.1-1
06/2011
DOI: 10.1109/PLASMA.2011.5993148
Abstract
Summary form only given. In an experiment performed on the International Space Station using the PK-3 Plus instrument, 3.4-micron plastic microparticles were introduced in a neon glow discharge plasma. The microparticles became negatively charged and were confined by ambipolar electric fields. Using laser illumination and video cameras, microparticles were imaged and their motions were tracked using image analysis software. We calculate the velocity distribution function f(v) for the random motion. We find that f(v) is non-Maxwellian with an elongated high-energy tail for this non-equilibrium system and f(v) is fit well by the Tsallis distribution. This distribution is popular in the field of statistical physics for non-equilibrium systems.
Details
- Title: Subtitle
- Non-gaussian velocity distribution of microparticles in plasma under microgravity conditions
- Creators
- A. K. Mukhopadhyay - University of IowaJ. Goree - University of IowaBin Liu - University of IowaV. E. Fortov - JIHT, Russian Academy of Sciences, 127412 Moscow, RussiaA. M. Lipaev - JIHT, Russian Academy of Sciences, 127412 Moscow, RussiaV. I. Molotkov - JIHT, Russian Academy of Sciences, 127412 Moscow, RussiaO. F. Petrov - JIHT, Russian Academy of Sciences, 127412 Moscow, RussiaG. E. Morfill - Max Planck Institute for Extraterrestrial PhysicsH. M. Thomas - Max Planck Institute for Extraterrestrial PhysicsA. V. Ivlev - Max Planck Institute for Extraterrestrial Physics
- Resource Type
- Abstract
- Publication Details
- 2011 Abstracts IEEE International Conference on Plasma Science, pp.1-1
- Publisher
- IEEE
- DOI
- 10.1109/PLASMA.2011.5993148
- ISSN
- 0730-9244
- eISSN
- 2576-7208
- Language
- English
- Date published
- 06/2011
- Academic Unit
- Physics and Astronomy; Mechanical Engineering
- Record Identifier
- 9984442016102771
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