Bulletin of the American Physical Society
74th Annual Gaseous Electronics Conference
Volume 66, Number 7
Monday–Friday, October 4–8, 2021;
Virtual: GEC Platform
Time Zone: Central Daylight Time, USA
Session KW74: Basic Plasma Physics Phenomena in Low-temperature Plasmas I
3:45 PM–5:30 PM,
Wednesday, October 6, 2021
Virtual Room: GEC platform
Chair: Alex Likhanskii, Applied Materials, Inc.
Abstract: KW74.00001 : The impact of plasma pattern formation on particle growth in strongly magnetized, low temperature plasmas*
3:45 PM–4:15 PM
Edward E Thomas
Edward E Thomas
(Univ of Saskatchewan)
The Magnetized Plasma Research Laboratory (MPRL) Team at Auburn University
Since the mid-2000s, several experimental devices have been built around the world to explore the physics of dusty plasmas in strongly magnetized plasmas. One of these devices, the Magnetized Dusty Plasma Experiment (MDPX) device at Auburn University is a flexible, high magnetic field (up to 4 T) research instrument with a mission to serve as an open access, shared user facility for the dusty plasma and basic plasma research communities. When the magnetic field is sufficiently large, B ≥ 1 T, a variety of emergent phenomena are observed including the formation of self-ordered plasma structure, specifically plasma filamentation along the magnetic field direction, as well as new types of imposed spatial ordering of the dust particles. This presentation will discuss recent studies of nanoparticle formation in strongly magnetized, reactive argon-acetylene capacitively coupled plasmas. Experiments and simulations will discuss how filamentary structures are formed in the plasma. Additional experiments will show how the presence of these filaments influence the morphology of the grown nanoparticles.
*The design, construction, and commissioning of MDPX device was funded through the NSF-MRI program. Operational funds for the MPRL laboratory are provided by the Department of Energy – Plasma Science Facility Program, NSF, NSF-EPSCoR, and NASA.
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