Bulletin of the American Physical Society
60th Annual Meeting of the APS Division of Plasma Physics
Volume 63, Number 11
Monday–Friday, November 5–9, 2018; Portland, Oregon
Session JP11: Poster Session IV: Education and Outreach; Undergraduate or High School Research; Plasma technology, Fusion reactor Nuclear and Materials Science; Propulsion; Materials Interfaces (2:00pm-5:00pm)
Tuesday, November 6, 2018
OCC Room: Exhibit Hall A1&A
Abstract ID: BAPS.2018.DPP.JP11.120
Abstract: JP11.00120 : Measurements of Emitted Molecular Species in Non-Uniform Plasma Arcs*
(Princeton Plasma Physics Lab)
Plasma applications ranging from industrial plasma modification of materials to fusion experiments often involve intense plasma-material interactions. Diagnosing the background plasma and emitted materials as they interact improves our understanding of these systems. In particular, molecular species can be present in large concentrations in plasmas of sufficiently low electron temperature. Infrared absorption spectroscopy is a common tool for diagnosing molecular species and properties of these species such as vibrational and rotational temperatures. An experiment to study the interactions and decomposition of an alkali salt into a plasma arc using infrared absorption spectroscopy is presented. The experiment applies previous work  to improve the spatial resolution of the infrared absorption measurement to understand the structure of the arc and the resulting interactions with the emitted materials.
 McGreivy, N., & Jaworski, M. (in press). Methods of improving spatial resolution for IR spectroscopy in atmospheric-pressure plasma systems. Review of Scientific Instruments
*This work supported by US Dept. of Energy grant DE-AC02-09CH11466 and PPPL Laboratory Directed Research and Development grant R071.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.DPP.JP11.120
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