Title :
High-power switch with Sl-thyristors for klystron pulse modulators
Author :
Akemoto, M. ; Honma, H. ; Anami, S.
Author_Institution :
KEK, High Energy Accel. Res. Organ., Ibaraki, Japan
Abstract :
To improve the reliability of a line-type modulator for a klystron, we have developed a solid-state switch with Sl-thyristors to replace the thyratron tubes. Fast turn-on characteristics of Sl-thyristor have been studied using a very low-inductance circuit. A maximum current of 10 kA and di/dt of 110 kA//spl mu/s with an anode voltage of 15 kV were obtained. We have designed and built a 45 kV solid-state switch that consists of 15 Sl-thyristors stacked in series. The switch has been successfully operated at 45 kV hold-off voltage, 6,000 A peak current, 6 /spl mu/s pulsewidth and 25 Hz.
Keywords :
accelerator RF systems; klystrons; linear colliders; power semiconductor switches; pulse modulation; pulsed power switches; thyristor applications; thyristors; 10 kA; 15 kV; 25 Hz; 45 kV; 6 mus; 6000 A; Japan linear collider; Sl-thyristors; anode voltage; fast turn-on characteristics; high-power switch; hold-off voltage; klystron pulse modulators; line-type modulator; reliability; solid-state switch; very low-inductance circuit; Anodes; Assembly; Circuit testing; Diodes; Klystrons; Pulse modulation; Solid state circuits; Switches; Thyratrons; Voltage;
Conference_Titel :
Power Modulator Symposium, 2000. Conference Record of the 2000 Twenty-Fourth International
Conference_Location :
Norfolk, VA, USA
Print_ISBN :
0-7803-5826-0
DOI :
10.1109/MODSYM.2000.896204
