So... there evidently was a power bump overnight, because the stability power supply was "disconnected" from the system. This happens every time there is a power bump. It's a serial port thing. Meanwhile, the source also tripped. Upon restart, nothing was the same. This morning, we found that Q3 was current-limiting on one element. We have asked Rick to develop an alternate tune for us.

Keerthi did some source tuning early this morning. We since shut it off for the swake of Q3. I have restarted it now temporarily. Here is an emittance scan with slits open and Q3 off. Now we will shut off again to prepare Q1 & Q2 supplies for new numbers.

Tuning...