Bulletin of the American Physical Society
64th Annual Meeting of the APS Division of Plasma Physics
Volume 67, Number 15
Monday–Friday, October 17–21, 2022; Spokane, Washington
Session GP11: Poster Session III: In-Person, Hall A (9:30-11:00am) and Virtual Poster Presentations (11:15am-12:30pm)
MFE: DIII-D
Low Temperature Plasma
FUND: Dusty Plasmas; Plasma Sources
9:30 AM - 12:30 PM
Tuesday, October 18, 2022
Room: Exhibit Hall A and Online
Abstract: GP11.00099 : Using 2d dust structures ot probe plasma conditions*
Presenter:
Alexandria Mendoza
(Baylor University)
Authors:
Alexandria Mendoza
(Baylor University)
Katrina Vermillion
(Baylor University)
Khandaker Sharmin S Ashrafi
(Baylor University)
Lorin S Matthews
(Baylor University)
Truell W Hyde
(Baylor University)
The exact role the ion wake has on the stability and how the box modifies the horizontal and vertical confinement are unknown.
A molecular dynamics simulation of ions flowing past dust grains in an experimentally stable configuration is utilized to determine the forces acting on the dust grains and determine the electric field and electron and ion number densities as a function of position within the box. Plasma parameters are determined by an iterative method to find a minimal force-balance for the dust grains. This force-balance equation gives insight into the confining forces acting on the system, and the contribution of the ion wake to the stability of the dust structure.
*The authors gratefully acknowledge support for this work from the US Department of Energy, Office of Science, Office of Fusion Energy Sciences award number DOE DE-SC0021334 and NVIDIA Corporation’s Applied Research Accelerator Program.
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