Bulletin of the American Physical Society
75th Annual Gaseous Electronics Conference
Volume 67, Number 9
Monday–Friday, October 3–7, 2022;
Sendai International Center, Sendai, Japan
The session times in this program are intended for Japan Standard Time zone in Tokyo, Japan (GMT+9)
Session GF1: Dissociative Electron Attachment and Distribution Functions
8:00 AM–9:15 AM,
Friday, October 7, 2022
Sendai International Center
Room: Shirakashi 2
Chair: Mariusz PiwiĆski, Institute of Physics, NCU
Abstract: GF1.00004 : A General Analytic Electron-Impact Ionization Electron Energy Sharing Model for Monte Carlo Plasma and Swarm Applications
9:00 AM–9:15 AM
Presenter:
Ryan Park
(Los Alamos National Laboratory)
Authors:
Mark C Zammit
(LANL)
Ryan Park
(Los Alamos National Laboratory)
Brett S Scheiner
(Los Alamos National Laboratory)
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
(Los Alamos National Laboratory)
Recently we have developed a general analytic model for calculating the electron-impact ionization electron energy sharing distribution function, which can be readily implemented in Monte Carlo simulation codes. Here we present our approach and show the utility of the model for a range of impact energies, species, ions, and excited states, by comparing the analytic model to accurate close-coupling and distorted-wave scattering calculations. We compare this approach to scattering models generally utilized by Boltzmann equation solver and collisional Monte Carlo codes, e.g. the commonly used model of C. B. Opal et al. J. Chem. Phys. 55, 4100 (1971), the equal-energy sharing approximation, and approximating the primary electron to take all of the excess energy. We note that unlike the commonly used approach of Opal, the present analytic model is applicable to all species, requires minimal input data from the user, and does not rely on experimentally determined parameters.
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700