Today with Daniele, we tuned the potentiometer after the Laselock which drives the analog BW of the PID on the laser PZT,
and we tuned also the fast loop gain (with the rotary potentiometer dedicated to it) => the PID parameters have changed.
so, the recipies has changed => to be updated
the global observation with the x3 amplifier on the laser PZT channel, is the system is more noisy.
the maximum power for 33% amp ratio is now ~93kW instead of 97-98kW.
we tried this afternoon to do a long run with the RF and the FPC loops activated, but it seams that a lot of high frequency noise is present.
is it coming from the new parameters feedback setup or because of the electron machine which is ON ? |