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1. Vacuum Electron Devices
Traveling-wave tubes (all types)
Crossed-field devices (oscillators and amplifiers)
Klystrons
Multiple-beam devices
Inductive output tubes
Fast-wave devices (gyrotrons, gyro-amplifiers)
Free electron lasers and masers
Pulse compression devices
Plasma filled amplifiers and oscillators
High power microwave devices / RF directed energy
Triodes, tetrodes and pentodes
Power switches

2. Vacuum Microelectronics / Nanoelectronics
Microwave, millimetre-wave & THz amplifiers and oscillators
Field emitter arrays
Flat panel displays
Sensors and detectors

3. Systems and Subsystems
Microwave and millimetre-wave power modules
Electronic power conditioners, modulators, and supplies
Linearizers
Amplifier/antenna coupling
Device and system integration
Reliability

4. Technologies
Cathodes and other electron emitters
Component parts (e.g. guns, circuits, windows, collectors)
Analysis and computer modeling
Novel materials (e.g. dielectrics, coatings, magnetic materials)
Electron emission
RF breakdown
Linearity, intermodulation and noise
Novel measurement techniques
Miniaturization
Thermal power management and control

5. Applications of Vacuum Electron Devices
Defense
Radar
Telecommunications
Medicine
Particle accelerators
RF interference
Instruments and lithography
Materials Processing
Television
Displays
Electric Propulsion



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