1. Design of an Energy Recovery System for a Gyrotron Backward-Wave Oscillator.
- Author
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Liang Zhang, Wenlong He, Cross, Adrian W., Phelps, Alan D. R., Ronald, Kevin, and Whyte, Colin O.
- Subjects
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GYROTRONS , *PARTICLES , *GENETIC algorithms , *SIMULATION methods & models , *ELECTRODES , *ELECTRON beams - Abstract
To realize the full potential of a gyrotron backward- wave oscillator (gyro-BWO), an energy recovery system was designed using Particle-In-Cell (PlC) simulations and optimized using both a genetic algorithm and PlC simulations. Simulations were carried out to optimize a periodic structure for separation of the spent electron beam and the output radiation produced by a gyro-BWO in the 8.0-9.5 GHz frequency range. The spent electron beam can be collected using a multistage depressed collector. The number and electric potentials of the electrodes were optimized to achieve the best overall recovery efficiency for specific parameters of the spent beam. The 3-D PlC code MAGIC was used to simulate the electrons' trajectories and a genetic algorithm was used to refine the electrode shapes for optimum efficiency. [ABSTRACT FROM AUTHOR]
- Published
- 2009
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