Thursday, April 20, 2006

Synchronizing the seed pulse

Previously we used the pulse generator to trigger the Prometheus, actually the trigger pulse should be generated from the front end excimer laser system. So I tried to send the laser pulse to trigger the Prometheus today. I set the laser repetition rate at around 4 Hz, then it was divided by 10 times, this 0.4 Hz pulse was the main pulse to trigger the Prometheus. I used a photodiode to measure the front end laser pulse. There was a jitter about ~4 microseconds between the Thyratron trigger and the laser pulse.

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