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- 8am MCC meeting clarified that the ESA search is probably going to be 11am-noon, not the originally hoped 9:30am. We declared ready to run right after ESA search. It was brought up that a few weeks ago some ESA user from Japan brought in an irradiated sample without declaring to RP which caused quite some disturbance that even temporarily shutdown the ESA operations. Lia's question on this caused a major overhaul that required us to send updated participant list, and TestFac experiment review form and RP in person interview etc. before getting approval to start at ~2pm.
- 13:00 - ESA search has been completed and the cave is now set to controlled access.
- DUT stage fine adjustments brought DUT aligned with Caladium MIMOSAs, and whole telescope moved horizontally into the beam line.
- RTISC2B appears have gone into very strange state and cannot be calibrated even after removing the rough taping. Brought in RTISC4A to replace it and sensor window properly taped. Threshold calibration runs but the noise rather high at ~400e, with some systematic structure also. Suspected bias voltage and seems to measure 0V on the HV ch-0 used. Switched over to ch-1 can at least drive the voltage up. Maurice concerned that the leakage current seemed a bit high >>few uA for very small starting bias voltage. However, cranking up to -53V (these Micron 300um sensors actually need -80V to deplete) didn't bring much more leakage current to settle at 4uA. Left at this setting to try to run. Sergei managed a standard 3000e tune with nice narrow dispersion. The noise is still high at ~400e. Also checked the various grounds and decided we can leave the HSIO2-PSU ground hook off since the HSIO-FE cable is now proper CAT6 with ground. This didn't make any difference. Decided to just take this tune as running config (RTISC2B__cern__25.cfg) - calib directory stayed with RTISC2B but this is really RTISC4A.
- Tried EUDET ni_autotrig runs but somewhat confused by the behavior: without ...
- 18:05: Karsten called and informed us about the delay. The people before us wrapped Al foil around the emergency buttons which of course upset a lot of people. They stopped ESTA operation until it is resolved, which should be in the next hour.