The 18O4+ run at about 5MeV/u ended this morning with reasonable success, I'm informed, despite MCIS vacuum trips, SC cryo trips and a power bump for good measure.This morning I found beam at FC6 unstable. It appeared to be toggling between plasma states. A little tweak of a few MHz up in microwave frequency not only stabilized it but also multiplied the brightness. Too bad the users didn't have this beam. Emittance scan in progress now.

Next up: 21Ne to TUDA-II. We will begin preparations for switchover to MWS operation shortly. We are discussing a run plan now.

Check beam at FC6. Still toggling. Tweak RF from 15.4790GHz to 15.4823GHz, a change of a mere 3.3MHz, and amplitude from 8.470 to 8.670dB. The RF multiplied the intensity, and the amplitude locked the plasma mode. Sweet! Striptools and final RF settings attached. Too bad we have to shut it down now. Close isolation valves, MCIS optics off, vacuum off. Prepare to access cage. Note: Bias and EL could not be turned off via EPICS.