Experiments and PIC Simulations of Atmospheric Pressure Plasma Corona Discharge

SCIENCE

Katherine Sakeagak

The purpose of this Undergraduate Research Apprenticeship proposal is to continue studying the steady state (DC) corona discharge to generate reactive oxygen and nitrogen species (RONS). By studying the steady state corona discharge, we will examine how to effectively generate RONS for biomedical applications with a continued emphasis on the inclusion of a background magnetic field transverse to the discharge direction. Through the research conducted in the Early Career Apprenticeship 2020-21, basic simulations with set parameters in background neutral species, voltage, and particle-in-cell and fluid model cases were established and will be refined and expanded through the next year. In the graph below, model simulations of the ionization process dependence on a static external magnetic field in the x-direction for the values Bx = 0.0 T to 2.0 T are shown. It can be seen that the ionization rate for N2+ is higher at early times in the 1.0 T case than in the low-field cases, before being extinguished in the highfield case. Anticipated studies for the next year include a comparison of simulation predictions with laboratory measurements now that campus is open, and the lab will be available.

Profile

Name: Katherine Sakeagak, Undergraduate Student

Institution: University of Alaska Anchorage

Major: Mathematics and Civil Engineering

Mentor: Nathaniel Hicks, nkhicks@alaska.edu

Award: Apprenticeship

Funding Period: 2021 to 2022