Journal article
Experimental measurement of velocity correlations for two microparticles in a plasma with ion flow
Physical review. E, Statistical, nonlinear, and soft matter physics, Vol.90(1), pp.013102-013102
07/2014
DOI: 10.1103/PhysRevE.90.013102
PMID: 25122396
Abstract
Velocity correlations are measured in a dusty plasma with only two microparticles. These correlations allow a characterization of the oscillatory modes and an identification of the effects of ion wakes. Ion wake effects are isolated by comparing two experiments with the microparticles aligned parallel vs perpendicular to the ion flow. From records of microparticle velocities, the one- and two-particle distribution functions f(1) and f(2) are obtained, and the two-particle correlation function g(2) ≡ f(2)-f(1)f(1) is calculated. Comparing the two experiments, we find that motion is much more correlated when the microparticles are aligned with the ion flow and the character of the oscillatory modes depends on the ion flow direction due to the ion wake.
Details
- Title: Subtitle
- Experimental measurement of velocity correlations for two microparticles in a plasma with ion flow
- Creators
- Amit K Mukhopadhyay - University of IowaJ Goree - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Physical review. E, Statistical, nonlinear, and soft matter physics, Vol.90(1), pp.013102-013102
- DOI
- 10.1103/PhysRevE.90.013102
- PMID
- 25122396
- NLM abbreviation
- Phys Rev E Stat Nonlin Soft Matter Phys
- ISSN
- 1539-3755
- eISSN
- 1550-2376
- Publisher
- American Physical Society
- Language
- English
- Date published
- 07/2014
- Academic Unit
- Physics and Astronomy; Mechanical Engineering
- Record Identifier
- 9984199698602771
Metrics
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