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Title: Effect of ionization waves on dust chain formation in a DC discharge

Journal Article · · Journal of Plasma Physics
ORCiD logo [1];  [2]; ORCiD logo [3]; ORCiD logo [4];  [2]; ORCiD logo [5]; ORCiD logo [2];  [6];  [7];  [8]; ORCiD logo [8];  [9];  [10]; ORCiD logo [6];  [11]
  1. Baylor Univ., Waco, TX (United States); Baylor University
  2. Baylor Univ., Waco, TX (United States)
  3. Baylor Univ., Waco, TX (United States); Wigner Research Center for Physics, Budapest (Hungary)
  4. Univ. of California, San Diego, CA (United States)
  5. Baylor Univ., Waco, TX (United States); Auburn Univ., AL (United States)
  6. German Aerospace Center (DLR), Oberpfaffenhofen (Germany)
  7. Russian Academy of Sciences (RAS), Moscow (Russian Federation); Moscow Inst. of Physics and Technology (MIPT), Moscow (Russian Federation)
  8. Russian Academy of Sciences (RAS), Moscow (Russian Federation)
  9. Justus-Liebig Univ., Giessen (Germany)
  10. Baylor Univ., Waco, TX (United States); Russian Academy of Sciences (RAS), Moscow (Russian Federation); Moscow Inst. of Physics and Technology (MIPT), Moscow (Russian Federation)
  11. Yuri Gagarin Cosmonaut Training Center, Moscow (Russian Federation)

An interesting aspect of complex plasma is its ability to self-organize into a variety of structural configurations and undergo transitions between these states. A striking phenomenon is the isotropic-to-string transition observed in electrorheological complex plasma under the influence of a symmetric ion wake field. Such transitions have been investigated using the Plasma Kristall-4 (PK-4) microgravity laboratory on the International Space Station. Recent experiments and numerical simulations have shown that, under PK-4-relevant discharge conditions, the seemingly homogeneous direct current discharge column is highly inhomogeneous, with large axial electric field oscillations associated with ionization waves occurring on microsecond time scales. here, a multi-scale numerical model of the dust–plasma interactions is employed to investigate the role of the electric field in the charge of individual dust grains, the ion wake field and the order of string-like structures. Results are compared with those for dust strings formed in similar conditions in the PK-4 experiment.

Research Organization:
Baylor Univ., Waco, TX (United States)
Sponsoring Organization:
German Aerospace Center (DLR); Hungarian Research, Development and Innovation Office; National Aeronautics and Space Administration (NASA); National Science Foundation (NSF); Russian Science Foundation; USDOE Office of Science (SC), Fusion Energy Sciences (FES)
Grant/Contract Number:
SC0021334
OSTI ID:
1835845
Journal Information:
Journal of Plasma Physics, Journal Name: Journal of Plasma Physics Journal Issue: 6 Vol. 87; ISSN 0022-3778
Publisher:
Cambridge University PressCopyright Statement
Country of Publication:
United States
Language:
English

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