The Plasma Theory and Simulation Group
Birdsall Curie Award presentation (large: 1.4 GB)
Seminar Schedule: Fall 2010
Seminar Schedule Archives
People of PTSG
Click here for the
full list of people who are or were in PTSG.
Dr. Helen Smith
Dr. Hae June Lee
Dr. Sang Ki Nam
Dr. Bin Li
Charles K.(Ned) Birdsall
Recent Visiting Scholars:
Dr. Marisa Roberto (Brazil)
Prof. Ming-Chieh Lin (Taiwan)
Dr. Hyun Chul Kim (S. Korea)
Prof. Guangsup Cho (S. Korea)
Prof. Suwon Cho (S. Korea)
Dr. Yuichi Ikeda (Hitachi Research Laboratory)
Mr. Naoki Matsumoto (Sumitomo Metals)
Prof. Miles Turner (Dublin City University)
Dr. Hide Usui (RASC, Kyoto University)
Dr. Vahid Vahedi, now at
Research Corp. Fremont, CA
Dr. David Cooperberg, now at Lam
Research Corp.Fremont, CA
Dr. Keith Cartwright, now at AFRL-Kirtland
Dr. Kevin Bowers, now at DeShaw Research Associates
Dr. Peter Mardahl
Dr. Weiguang (David)
Dr. Emi Kawamura
Dr. Jeff Hammel
Current Projects in PTSG
AFOSR: Consortium on Cathodes and Breakdown for High Power Microwave Devices
AFOSR/Calabazas Creek Research: High Voltage Computar Laboratory
DOE/LLNL: Hydrocarbon Transport in the Diverter Sheath
DOE/Calabazas Creek Research: A Finite Element PIC Model
Recently Completed Projects in PTSG
DOE: Modeling and Simulation of Plasma Edge
Behavior: Formation, Stability and Heating
ONR: Plasma Boundaries, Neutral & Non-neutral Plasma, Plasma Devices
ONR/NRL: Simulation of Low Frequency Noise
in a Coupled Cavity Traveling Wave Tube
TECH-X: Object-Oriented PIC Code With Upgraded
Physics And Platform Independent GUI
and Simulation of Plasma Display Panels (PDP's)
(Japan):Elecromagnetic Modeling and Simulation of Sumitomo Surface
Wave Plasma (SWP) Device
bulk (fluids), plasma sheath (particles); bounding wall (profiler); an
attempt to construct seamless boundaries at the fluid /particle/ wall
boundaries, and to run at fluid code speeds
Our practice has been to make all software developed by PTSG freely
available to anyone. If you use our codes or our graphics (both are copyrighted),
then please acknowledge PTSG in your publications and send us a copy of
your journal articles or reports (send to Prof.
Birdsall). We would also appreciate receiving copies of your input
files (representative) and a copy of code changes which you have made.
For our plasma device codes (XPDP1, XPDP2, XPDS1), please acknowledge:
Verboncoeur, J.P., M.V. Alves, V. Vahedi, and C.K. Birdsall, "Simultaneous
Potential and Circuit Solution for 1d bounded Plasma Particle Simulation
Codes," J. Comp. Physics, 104, pp. 321-328, February 1993.
For XPDP2, please acknowledge:
Vahedi, V., C.K. Birdsall, M.A. Lieberman, G. DiPeso, and T.D. Rognlien,
"Verification of frequency scaling laws for capacitive radio-frequency
discharges using two-dimensional simulations," Phys. Fluids B 5 (7), pp.
2719-2729, July 1993.
V. Vahedi and G. DiPeso, "Simulataneous Potential and Circuit Solution
for Two-Dimensional Bounded Plasma Simulation Codes," J. Comp. Phys. 131,
pp. 149-163, 1997. (Work begun at U.C. Berkeley)
For XOOPIC, please acknowledge:
J.P. Verboncoeur, A.B. Langdon and N.T. Gladd, "An Object-Oriented
Electromagnetic PIC Code", Comp. Phys. Comm., 87, May11, 1995, pp. 199-211.
Our most recent, popular and well kept up codes are on bounded plasma,
plasma device codes XPDP1, XPDC1, XPDS1, and XPDP2. The P, C, and S mean
planar, cylindrical, or spherical bounding electrodes; the 1 means 1d 3v
and the 2 means 2d 3v. These are electrostatic, may have an applied magnetic
field, use many particles (like hundreds to millions), particle-in-cell
(PIC), and allow for collisions between the charged particles (electrons
and ions, + or -) and the background neutrals (PCC-MCC). The electrodes
are connected by an external series R, L, C, source circuit, solved by
Kirchhoff's laws simultaneously with the internal plasma solution (Poisson's
equation), The source may be V(t) or I(t), may include a ramp-up (in time).
XPDP2 is planar in x, periodic in y or fully bounded in (x,y), driven by
one or two sources.(For detailed information, click
Our older, far less well kept up codes are:
Codes available (free) from our web site ptsg.eecs.berkeley.edu.
The files are listed at distribution. Be sure to get xgrafix, it is required
to run other programs. When multiple programs are available, choose the
most recent one unless you desire an old version.
Download the software now.
Code Consulting and Maintanence
PTSG may answer short inquiries on our various codes, as we are primarily
committed to university type plasma device research and development. However,
more detailed inquiries for help should be addressed to Research Institute for Science and Engineering, a small private firm well skilled in PTSG codes: email@example.com.
If you find bugs while using our program, please report them to us.
We appreciate these information.
Click here for the bug report form.
Publications Using PTSG
Many authors, using our codes, have made acknowledgments to
PTSG and sent us copies of their reports, journal articles, letters, and
MS, Ph.D. theses. We appreciate both.
Since 1991, we have listed the publications brought to our
attention using our codes XPDP1, XPDC1, XPDS1, XPDP2, and XOOPIC (by us
and others). The total that we are aware of now exceeds 300, including
over 60 by us. We are delighted to have been helpful to these authors. We are
even more delighted to learn of their excellent and ingenious applications
and modifications of our codes. (Go to the List
of the publications)
We have given workshops for users of our plasma device codes.
These codes are particle-in-cell (PIC) codes with Monte Carlo collision (MCC)
models in 1D and 2D. Cartesian, cylindrical, and spherical coordinates are
modeled, in both electrostatic and electromagnetic regimes. The models include
flexible boundary conditions, external driving circuits, and user-customizable
diagnostics. The PTSG has been at the forefront of algorithm development for
almost 50 years, and continues to develop new models for physics, computer
science, and applied mathematics.
Inquiries are welcome (address to
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Nuclear Engineering Department
University of California, Berkeley