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An IGBT modulator has been developed to drive a 120 kV, 23 A Pierce electron gun. The modulator is capable of producing pulses up to 10 mus in width at repetition rates up to 10 Hz with no active reset. The pulse rise time on the electron gun will be approximately 2 mus and the remaining 8 mus of flattop is tuned to have a ripple of less than 1 percent rms. The modulator technology was developed from...
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