| Item | Notes |
|---|
| Plan for the day | - Linac currently off for repairs, expected to be on around 2
- Sebastian won't be here past 3:30 but should have enough people
- Repairs done, waiting on Allan/RSWCFs
|
| SSA problems | - Ryan has a script to capture which 1.3 SSAs have problems, will send to Andy
- Andy will go look at them
- HL SSAs coming on just fine
|
| Machine stability | - Linac RF has been remarkably stable
- Even heat didn't affect stability over the weekend
- Have not needed dedicated hour for global characterizations
- Maybe 3 or 4 per shift
- Not sure what changed this
- RFS phase reference line tracking went, but should have just relieved SEL phase offset problem
- 24/7 beam program is correct, but owl shift is often phasing. Might give us time to do work
|
| LBNL detune | - LBNL team preparing
- Tracking which cavities could need correction
- We don't have a fault that shows this
- Can look at forward power, see if it goes up
- Larry will be here tomorrow (8/10)
- Will probably want to do passive monitoring
- Might ask to put in coefficient corrections
- Noninvasive? Maybe?
- Probably won't do globally
|
| Issues | - Cavities 7 and 8 in H1 (H2?)
- Andy has a suspect, will look during next PAMM
- PRL offset in CMs 13 and 15 (and H1)
- Should we add to phasing procedure?
- Per cavity basis
- Don't really know what an actual problem looks like
|
| Piezos | - Not sure where to fit in
- 6AM slot is being used for configuration change
- First light would be a good turning point for opportunities
- Can use 6-7PM SRF slot for verification
|
| Battery-powered chassis for tuning | - Want to make smarter
- Want to have a laptop connected
- In brainstorming phase, spec unclear
- Initial assumption was to be fast and not complicated
- Worst case means no power
- Will only have a couple hours, including commute time
- Current chassis will boot and be usable, need to double check
- can issue per-cavity commands and then disconnect laptop and move on while it's working
- Chassis will need to stay while motors are moving
|
