simulation technology and applied research inc mequon wi, 2007
We have completed implementation of a variety of numerical optimization methods, including multi-directional search (MDS), differential evolution (DE), the...
science applications international corp burlington ma, 2006
RF guns and density modulated guns that encompass photocathodes and inductive output tube sources are difficult to model but continue to be at the forefront of...
We continue to research and develop better emission models for gun codes. We describe our recent efforts to improve the thermal aspects of space-charge-limited...
communications and power industries palo alto ca, 2006
Two Michelle models are described and results compared to practical measurements. The two models are of a gridded electron gun and a two stage depressed...
simulation technology and applied research inc mequon wi, 2006
Project activities during the previous three months include the acquisition and setup of a LINUX cluster for use in optimization studies and the design and...
simulation technology and applied research inc mequon wi, 2006
Using the MICHELLE Gun and Collector code linked to the Analyst finite-element modelling package, we have investigated the use of direct-search and statistical...
scientific applications international corp burlington ma, 2005
During the Phase 1 Option we have focused on developing a suitable model for a more realistic optimization of the collector that was analyzed at the end of the...
science applications international corp (saic) billerica ma, 2008
The MICHELLE code is a Finite-Element Electrostatic Particle in Cell code for application to 2D and 3D particle beam formation, transport, and collection. Its...
naval research lab washington dc vacuum electronics branch, 2008
A design methodology for sheet-beam formation and solenoidal magnetic field transport is described, and a point design for a W-band amplifier gun and beam...
Next generation vacuum electron devices under development for millimeter and sub-millimeter wavelengths are often characterized by very small features that...
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