Applied two iterations of changes to the Hall C channel scaling, going from 0.7432 to 0.7119 to 0.7138. IBC3H00 now matches IBC0R08 much closer than before and we were able to get up to 46 uA before tripping on (Fig. 3)a dump diffuser raster 2 fault. The hall is only asking for 40 uA so I am fine with only calibrating this far.
One somewhat confounding thing is the "Commit Status" indicator didn't turn green on the last commit. I think it's alright as the new channel scaling got applied according to the screen and PVs.
With Hall C requesting 40 uA, checked with the PD about any concerns with sending that high of a current while O2 concentrations are elevated. At the moment we are oked to send up to 50 uA if possible, but we will keep on eye on the concetration, and if it spikes, we will talk with the PD and Hall and figure out a way forward.
We will calibrating Hall C as that is the only hall capable of recieving beam. BLA Loss profiles are abnormal, showing constant integrated loss and more current in Hall C's BCM than in the Injector's, clearly indicating that the BCMs are mismatched. We performed the FC2 to 0L02 Calibration and BLA Confidence Test. Aperture scans look good, no BLMs were tripping with BLA, wire sums are good, NDXs are quiet, and IDXs are also quiet.
The only BLA fault indicated is for the downconverter in Hall A, which is to be expected.
Followed the procedure for this calibration and the cal factors hardly changed. Currents agree on the low end but IBC0L02CurrentB diverges from the others above about 20 uA. This is probably a matter of interpretation in the procedure as it seems like it could be read as instructing the operator to monitor current while stepping down from 10 uA to 0, but I decided to check the full span of the currents we are calibrating for. The important PVs, IBC0L02Current and FCupsCORRECTED match very well, so I am comfortable calling this done.
| Shift | Owl |
|---|---|
| CEBAF Program | |
| MCC Crew Chief | Howard |
| MCC Operators | Price, Chaudhary |
| Program Deputy | Malace |
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