Paper/Poster Title
Experiments on Orbiting dust particles in Plasma Multi-rings
Advisor(s)
William Theisen, PhD
Ohio Northern University
Physics & Astronomy, Science, Technology, and Mathematics
w-theisen@onu.edu
Document Type
Poster
Location
ONU McIntosh Center; Activities Room
Start Date
22-4-2022 11:00 AM
End Date
22-4-2022 12:00 PM
Abstract
A grooved rf electrode was used to generate an argon plasma. Dust particles were dropped into the plasma and settled in the plasma sheath several millimeters above the electrode. The dust particles formed various sized multi-rings (1-4 rings) and had a tendency to orbit about the center of the electrode through the rings. The angular velocity (ω) was calculated for particles in each section of the ring. It was found that as the number of rings in a section (therefore the mass) increased, ω decreased which agrees with the conservation of angular momentum. The pressure was also varied and it was found that as pressure increased, ω decreased.
Recommended Citation
Long, Isaac M. and Colley, Kiser Z., "Experiments on Orbiting dust particles in Plasma Multi-rings" (2022). ONU Student Research Colloquium. 58.
https://digitalcommons.onu.edu/student_research_colloquium/2022/posters/58
Open Access
Available to all.
Experiments on Orbiting dust particles in Plasma Multi-rings
ONU McIntosh Center; Activities Room
A grooved rf electrode was used to generate an argon plasma. Dust particles were dropped into the plasma and settled in the plasma sheath several millimeters above the electrode. The dust particles formed various sized multi-rings (1-4 rings) and had a tendency to orbit about the center of the electrode through the rings. The angular velocity (ω) was calculated for particles in each section of the ring. It was found that as the number of rings in a section (therefore the mass) increased, ω decreased which agrees with the conservation of angular momentum. The pressure was also varied and it was found that as pressure increased, ω decreased.