High power and high-longevity GaAs photoconductive semiconductor switches
2008 17th International Conference on High Power Particle Beams, BEAMS'08（2008）
Abstract
A 14mm photoconductive semiconductor switch (PCSS) is excited at 20kV/400A, and the longevity is up to 350 shots. After 350 shots, the dark resistances decreases, and the biased voltage can not be increased to 20 kV again. The breakdown mechanism and the cause of the dark resistances decrease of the PCSS is analyzed based on the breakdown characteristics. © 2008 Institute of Fluid Physics, C.
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Key words
materials,gallium arsenide
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