NDLI: Cold Plasma Particle-Particle Collisions and Self-Heating

Content Provider	IEEE Xplore Digital Library
Author	Hang-Ping Chen Birdsall, C.K.
Copyright Year	2005
Description	Author affiliation: California Univ., Berkeley, CA (Hang-Ping Chen; Birdsall, C.K.)
Abstract	Summary form only given. Using the input file coldplas.inp from our venerable electrostatic periodic particle-in-cell (PIC) code XES1 (available at http://ptsg.eecs.berkeley.edu), we observe cold plasma oscillations excited in the fundamental mode. Our purpose is to examine the electron-electron collisions. Let two electrons be loaded at x=L/4 and at x=3L/4 for a system of length L. The ions form a uniform stationary background that makes the periodic system net neutral. The particle excitation at t=0 is an x-velocity v1=A sin kx in fundamental mode, with amplitude A and kL=2pi. With small A, the Vx-x phase space shows two ellipses, each centered at the starting positions and with oscillations at the input plasma frequency, as expected. As A is increased, the two particles collide at x=L/2 and reflect. The particle oscillatory and colliding motion histories are observed by tracing their Vx-x motions. Next, 64 electrons are loaded uniformly in x and excited in the fundamental mode using small A and producing 64 non-colliding elliptical orbits with an envelope in mode. When A is increased, we now ask, "Which electrons collide first?" We observe crossing first at x=0 or at x=L/2 , where neighboring orbits have opposite x-velocities. These collisions randomly scatter the particles, and the field, kinetic, and total energies grow non-physically with time
Sponsorship	Plasma Sci. Appl. Comm. IEEE Nucl. Plasma Sci. Soc.
Starting Page	283
Ending Page	283
File Size	1027721
Page Count	1
File Format	PDF
ISBN	0780393007
ISSN	07309244
DOI	10.1109/PLASMA.2005.359382
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-06-20
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Plasma simulation Plasma applications Physics Monte Carlo methods Electrons Plasma accelerators Computational modeling Packaging Orbits Etching
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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