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Title: Quasi-discrete particle motion in an externally imposed, ordered structure in a dusty plasma at high magnetic field

Dusty plasmas have been studied in argon, radio frequency (rf) glow discharge plasmas at magnetic fields up to 2.5 T where the electrons and ions are strongly magnetized. Plasmas are generated between two parallel plate electrodes where the lower, powered electrode is solid and the upper electrode supports a dual mesh consisting of #24 brass and #30 aluminum wire cloth. In this experiment, we study the formation of imposed ordered structures and particle dynamics as a function of magnetic field. Through observations of trapped particles and the quasi-discrete (i.e., “hopping”) motion of particles between the trapping locations, it is possible to make a preliminary estimate of the potential structure that confines the particles to a grid structure in the plasma. In conclusion, this information is used to gain insight into the formation of the imposed grid pattern of the dust particles in the plasma.
Authors:
 [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [2] ;  [3]
  1. Auburn Univ., Auburn, AL (United States)
  2. The Univ. of Iowa, Iowa City, IA (United States)
  3. Univ. of California, San Diego, La Jolla, CA (United States)
Publication Date:
Grant/Contract Number:
SC0010485
Type:
Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 22; Journal Issue: 11; Journal ID: ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)
Research Org:
Auburn Univ., AL (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
OSTI Identifier:
1469668
Alternate Identifier(s):
OSTI ID: 1227535

Thomas, Jr., Edward, Konopka, Uwe, Lynch, Brian, Adams, Stephen, LeBlanc, Spencer, Merlino, Robert L., and Rosenberg, Marlene. Quasi-discrete particle motion in an externally imposed, ordered structure in a dusty plasma at high magnetic field. United States: N. p., Web. doi:10.1063/1.4936244.
Thomas, Jr., Edward, Konopka, Uwe, Lynch, Brian, Adams, Stephen, LeBlanc, Spencer, Merlino, Robert L., & Rosenberg, Marlene. Quasi-discrete particle motion in an externally imposed, ordered structure in a dusty plasma at high magnetic field. United States. doi:10.1063/1.4936244.
Thomas, Jr., Edward, Konopka, Uwe, Lynch, Brian, Adams, Stephen, LeBlanc, Spencer, Merlino, Robert L., and Rosenberg, Marlene. 2015. "Quasi-discrete particle motion in an externally imposed, ordered structure in a dusty plasma at high magnetic field". United States. doi:10.1063/1.4936244. https://www.osti.gov/servlets/purl/1469668.
@article{osti_1469668,
title = {Quasi-discrete particle motion in an externally imposed, ordered structure in a dusty plasma at high magnetic field},
author = {Thomas, Jr., Edward and Konopka, Uwe and Lynch, Brian and Adams, Stephen and LeBlanc, Spencer and Merlino, Robert L. and Rosenberg, Marlene},
abstractNote = {Dusty plasmas have been studied in argon, radio frequency (rf) glow discharge plasmas at magnetic fields up to 2.5 T where the electrons and ions are strongly magnetized. Plasmas are generated between two parallel plate electrodes where the lower, powered electrode is solid and the upper electrode supports a dual mesh consisting of #24 brass and #30 aluminum wire cloth. In this experiment, we study the formation of imposed ordered structures and particle dynamics as a function of magnetic field. Through observations of trapped particles and the quasi-discrete (i.e., “hopping”) motion of particles between the trapping locations, it is possible to make a preliminary estimate of the potential structure that confines the particles to a grid structure in the plasma. In conclusion, this information is used to gain insight into the formation of the imposed grid pattern of the dust particles in the plasma.},
doi = {10.1063/1.4936244},
journal = {Physics of Plasmas},
number = 11,
volume = 22,
place = {United States},
year = {2015},
month = {11}
}