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Date
Attendees
Goals
Discussion items
Time | Item | Who | Notes |
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10 min | On call norms | All | - Linac should not have been turned on at 3am
- Lisa was called and spent 3 hrs helping turn on
- Auto set up worked excepts SELA
- Ryan suspects issue with ramp
- Calling ACR back within 30-60 min is acceptable
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10 min | Auto setup |
| - Add Janice's auto cheeto code to auto setup?
- Sebastian said some cavities were on the edge of tripping from forward power
- Sebastian suggests not running Janice's code in <>?
- Ryan - cavity display was showing purple piezo faults, piezo feedback turns off and is not regulating
- Dan - watch piezo voltage
- Ryan - piezo control loop is invalid not detune
- Dan/Lisa - do two steps, run autotune, use SELA then chirp
- Two use cases, add flag to use chirp
- Dan - all cavities need to be tuned at gradient?
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2 min | Power outages |
| - Lauren/Janice - Magnets getting turned off, vacuum valves in, WS turned off
- 4p on Sunday, everyone will be at ACR for cold landing
- Everyone take Monday off, Lauren will take Wed off
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1 min | Conference |
| - Posters need to go to Bambi by 19th
- Dan can take all the posters
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30 min | Cavity display |
| - Janice - more than AOT is going on when cavities quench/misbehave.
- how to differentiate between AOT and worse things
- Sonya can add new alarm for PRLSTD?
- freakouts are still happening time to time and we need to signal operators
- Dan - make PV for diff between Acct and Amean/Ades?
- same as AOT? but make one when diff is larger than AOT threshold/a lot
- some AOTs are microphonics but not big excursions
- Sebastian - flag on frequency deviations, that should never happen
- Janice - votes for checking Pzt:DF_RFS>50/100 & AACTMEAN.SEVR=MALOR
- New fault, JIT? jitter higher in warning hiearchy
- Sebastian, worried AACTMEAN.SEVR would happen too often, but ok w/ the first half?
- Sonya working on this ^
- Can help future freakouts get catered?
- Sebastian, maybe PZO flag is enough? greater than 100 Hz should never happen?
- Lisa. - why not DFBEST?
- Sebastian/Janice, not the right PV to look at?
- She can add severity check in cavity display for detune
- Janice wants operators to be able to cater bad PRL's
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Action items
- Lisa requested archive of failed ramp up/SELA issue
- Lisa M Zacarias update autotune to have chirp flag and ramp issue
- Send conference posters to Bambi by June 19th, 2023
- Lisa M Zacarias Ask Sonya to add if PZT:DF_RFS>50 Hz, flag red and
- PZT:DFVALID_RFS is not flagging when appropriate, change threshold/lower
- Can we get red status for DFBEST > 50?
- Lisa M Zacarias will add DFBEST to cavity display (warning and alarm as DET or JIT)