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Calabazas Creek Research, Inc. is involved in several software development
programs funded by the Department of Energy. These efforts focus on creating
advanced computational tools for designing high power microwave and
millimeter wave devices.
Software Development Programs include:
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Beam
Optics Analysis (BOA) - A 3D Finite
Element Beam Simulation Code with Adaptive Meshing
CCR, in collaboration with the Scientific Computational Research Center at
Rensselaer Polytechnic Institute and Center for Research in Scientific
Computation at North Carolina State University developed a fully
relativistic, 3D, charged particle analysis program with adaptive finite
element meshing. The code includes 3D electrostatic and magnetostatic
solvers. The code incorporates advanced features, including:
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- Intuitive,
user-friendly graphical user interface,
- Import of
geometry from commercial solid modeling programs,
- Advanced post
processing graphics capability,
- Automatic and
user-specified meshing,
- Computer
optimization routines,
- Multiple
emission capabilities, including thermionic emission, secondary
emission, and injected beams,
- Space charge and
self magnetic fields,
- Import of
magnetic field data.
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The code greatly facilitates design of complex, 3D
structures by employing the full capability of advanced, parametric solid
modeling programs for geometry generation, intuitive setup of electrostatic
parameters (voltages, permittivity, volume space charge density),
magnetostatic parameters (coil current densities, permeability, boundary
conditions), and electron emitters (temperature, work function, thermal
emission, temperature corrections, relativistic corrections). The code can
model multiple emitters. The optimization facility utilizes the parametric
capability of solid modeling programs to optimize geometry as well as
parameters such as voltages and current. Optimization can be critical for
design of complex 3D structures.
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Additional information is available from the following
sources:
- Brian M. Lewis, Hien T. Tran, Michael E. Read, R. Lawrence
Ives, "Design of an Electron Gun Using Computer
Optimization," IEEE Transactions on Plasma Science, Part 1, Vol.
32 Issue 3, pp. 1242-1250 (June 2004).
- John A. David, R. Lawrence Ives, Hien Tran, Thuc Bui, Michael
E. Read, "Computer Optimized Design of Electron Guns," IEEE
Transactions on Plasma Science, Vol. 36 Issue 1, pp. 156-168 (February
2008).
- R. Lawrence Ives, Adam Attarian, Thuc Bui, Michael Read, John David, Hien Tran,
William Tallis, Steven Davis, Sean Gadson, Noah Blach, David Brown,
And Erin Kiley, “Computational Design of Asymmetrical Electron Beam
Devices, IEEE Trans. Electron Devices, pp. 753-761, May 2009.
This development was
supported by DE-FG03-00ER82966, DE-FG02-03ER83616, DE-FG02-04ER83918, and
DE-FG02-06ER86267.
The program
and/or the complete manual can be downloaded for
free evaluation.
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SURF3D (Surface Integral Equation Analysis of Quasi-Optical
Launchers using the Multi Level Fast Multipole Algorithm)
CCR is recognized as a world leader in design codes for quasi-optical RF
launchers for gyrotrons. CCR’s SURF3D/LOT design suite revolutionized simulation
of these devices, increasing launcher efficiencies from approximately 90% to
98% and higher. This code suite is now used routinely in Europe, India, Japan,
and the United States.
The suite uses optimization routines that produce designs with nearly zero
diffraction loses and significantly higher Gaussian content than previous
methods. SURF3D is the most precise design code in the world for modeling
quasi-optical launchers. Its ability to accurately model complex structures
has been verified by numerous experimental measurements. An example is shown
in the below.
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