Bulletin of the American Physical Society
76th Annual Gaseous Electronics Conference
Volume 68, Number 9
Monday–Friday, October 9–13, 2023; Michigan League, Ann Arbor, Michigan
Session GT2: Electron-Molecule and Plasma-Related Collisions
10:00 AM–12:00 PM,
Tuesday, October 10, 2023
Room: Michigan League, Henderson
Chair: Alexander Dorn, Max Planck Institute for Nuclear Physics
Abstract: GT2.00005 : Improving electron transport in Monte Carlo simulations using high-fidelity collision models
11:45 AM–12:00 PM
Presenter:
Ryan M Park
(Los Alamos National Laboratory)
Authors:
Ryan M Park
(Los Alamos National Laboratory)
Mark C Zammit
(Los Alamos National Laboratory)
Amanda Neukirch
(Los Alamos National Laboratory)
Brett Scheiner
(Lam Research Corporation)
James Colgan
(LANL)
Christopher J Fontes
(Los Alamos National Laboratory)
Eddy M Timmermans
(Los Alamos Natl Lab)
Xianzhu Tang
(Los Alamos Natl Lab)
Nathan Garland
(Griffith University)
In this talk, we demonstrate the effect of differential elastic and ionization cross section models on the electron transport in swarm conditions and low-temperature plasmas. Several gasses are simulated using high-fidelity anisotropic elastic scattering models and electron ionization energy sharing models. We use a newly developed 0D direct simulation Monte Carlo (DSMC) code "ThunderBoltz", and a 1D PIC-MC code "eduPIC" to produce quality electron velocity distribution functions, kinetic reaction rates, and electron mobility and diffusion coefficients. We compare these transport parameters to demonstrate the importance of using higher fidelity differential collision models and outline scenarios where these more detailed models are necessary.
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