Journal article
Einstein Frequency Measurement for a Strongly Coupled Dusty Plasma
IEEE transactions on plasma science, Vol.46(4), pp.763-767
04/2018
DOI: 10.1109/TPS.2017.2746012
Abstract
The Einstein frequency \Omega _{E} was experimentally determined for a 2-D dusty plasma. We found \Omega _{E}= 49.4 ~\text{s}^{-1} and 50.2 s −1 for the collection of microspheres in a crystalline and liquid-like state, respectively. Comparing to the nominal 2-D dust plasma frequency \omega _{\mathrm {pd}} , we found the ratio \Omega _{ E} / \omega _{\mathrm {pd}}\approx 1 / \surd 3 . This experimental ratio is consistent with previous predictions of Yukawa simulations. Our results were obtained by analyzing images of the microspheres to obtain their positions, charge, and the screening length; we used these measurements to calculate resonant frequencies of test particles.
Details
- Title: Subtitle
- Einstein Frequency Measurement for a Strongly Coupled Dusty Plasma
- Creators
- Chun-Shang Wong - University of IowaJohn Goree - University of IowaZach Haralson - University of Iowa
- Resource Type
- Journal article
- Publication Details
- IEEE transactions on plasma science, Vol.46(4), pp.763-767
- Publisher
- IEEE
- DOI
- 10.1109/TPS.2017.2746012
- ISSN
- 0093-3813
- eISSN
- 1939-9375
- Grant note
- NASA (10.13039/100000104) DOE (10.13039/100000015) NSF (10.13039/100000001)
- Language
- English
- Date published
- 04/2018
- Academic Unit
- Mechanical Engineering; Physics and Astronomy
- Record Identifier
- 9984199958302771
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