Speaker
Description
The KEK electron and positron injector linac uses pulse compressors that amplify the high-power RF waves generated from S-band 40 MW klystrons. It is necessary to precisely tune the compressors operating in high-power operation so that their VSWR is minimal and their output power is maximized. We have developed a real-time and labor-saving tuning system for the compressors. The system comprises of a waveform analyzer and a removable and remote-controlled tuner driver. The analyzer calculates in real-time the frequency shift of each compressor comparing its output waveform with the optimal waveform calculated from its input by using the fourth-order Runge-Kutta method. The frequency shift is eliminated by the tuner while monitored pule-to-pulse by the analyzer. In results, all the compressors were tuned easily and precisely.
| Paper status | Proceeding files received |
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