Since the Stochmon turned out to be tricky to calibrate the outputs, Koji and I decided to monitor the RFAMs using REFL11 and REFL55 RFPDs while the beam is single-bounced from PRM.

This is, of course, not a permanent RFAM monitor, but at least it gives us a long-term continuous RFAM information for the first time.

Before the measurement I ran the offset zeroing scripts, therefore any offsets from electronics must be tiny in the acquired REFL signals.

The measurement has begun from approximately 3:00 pm.

 

 Also I found C1LSC.ini file again became default (no channels had been acquired).

So I replaced it with an archived ini file and then restarted fb.