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An automated, GUI-accessible optimizer has been implemented into Beam Optics Analyzer; the optimizer uses iterative methods to model electron guns and surface electric fields. Beam Optics Analyzer (BOA) is an adaptive mesh, finite element, charged particle trajectory modeling tool for designing 3D electron devices. Previous research included the optimized design of Brillouin focused electron guns...
Calabazas Creek Research, Inc. (CCR) and the University of Wisconsin, Madison (UW) are developing a 650 GHz traveling wave tube amplifier (TWTA). Simulations predict 360 mW peak output power with a 2-10% duty cycle. This paper summarizes the design and fabrication of the TWT. Testing is expected in November, 2008.
The development of a selective metallization process capable of metallizing only the top of a microfabricated, raised meander line ridge is described. This fabrication process has unique potential in the development of millimetre-wave and terahertz regime slow wave structures for travelling wave tubes. The fabrication process will be described and the latest images and measured data will be presented.
Electron guns are used in many vacuum electron devices to convert electrical power into an electron beam. Vacuum electron RF sources are critical for national defense and many scientific and industrial applications. In an RF source, the beam energy is converted to energy in an RF wave. The electron gun is a primary component in klystrons, traveling wave tubes (TWTs), gyrotrons, and inductive output...
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