Run Planning Meeting Notes, August 11- August 17, 2022
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Meeting are via ZoomGov: connect (Meeting ID: 160 199 0060 / Passcode 8394)
Hall D counting room white board
Contents
Thursday August 11
Past 24 hours
- Running on Pb target (30 nA). Another relatively good day: ABU=18.3 h for the day
- Beam down for 3.75 hrs due to afternoon thunderstorms
- Program Deputy summary
Shift Reports
- Day shift summaries (1), (2)
- Swing shift summary (1), (2)
- Owl shift summary
- Early Riser shift summary
Reports
Issues
- Continued: TAGH major link alarm. Description by shift leader. Cannot communicate with crate, but rates are fine -> we decided to run as it is (monitoring TAGH scalars with stripcharts) and have a look latter.
Plans
- Beam off all day for maintenance day
- Hall in controlled access
- Solenoid current to be lowered because of cryowork. Tim seems to be doing this from home as we speak.
- Requested survey of tagger hall for access to reset TAGH crate
- When beam restored run harp scans
- Production on Pb target.
- Next pass change (4->3) for Hall C will be Tuesday. They will be down for 6h-8h Monday to install their aerogel. Monday is auspicious for a TAC run.
Friday August 12
Past 24 hours
- Beam off Thu 630 am - ?? pm for maintenance day
- ~ 9 am access to tagger hall by Beni to reset TAGH HV crate; OK now
- ramped down solenoid for cry work (Tim)
- resume prodcution data Friday 3:18 am
Shift Reports
Reports
- Beni reset the TAGH HV crate; it's communicating again ([1])
- Malte changed 2 FCAL bases ([2], [3])
- The filter material (Molecular Sieve) Assy. for the Cryomech cold compressor in Hall-D has been completed by target group
- Tim also reports that compressor swap is complete; not sure whether that refers to the target group's work?
- Beam delivary after maintenance day delayed until ??? due to a leak in magnet LCW hose in NL.
Issues
Plans
- Continue with prodcution data on Pb through the weekend.
- Plan for TAC run on Monday, when Hall C installs their aerogel.
Monday August 15
Past 72 Hours Summary
Time lost in hall mainly due to beam tuning; Hall C bleedthrough to B is still an issue.
There is some chatter this morning about position locks [4]
Plan for Monday through Thursday
- Monday: Hall C will turn off beam at 7 am to get ready for aerogel installation at 8 am. Is supposed to take about 6 hours.
- Access to hall at 7 am to move target to empty position.
- Sasha will try to make it in by 7:30 am to start TAC measurement.
- Upon completion of TAC measurement resume production on empty target
- Hall C pass change now scheduled for Wednesday. But C now is considering changing Tuesday. Decision will be made at noon.
- Thursday 7 am end of run; start installation period for PrimeX
Friday: Day through Owl
- at 7:45 am meeting Hall B complained about bleedthrough from C; optimizing the machine led to considerable downtime during the day.
- at 12 pm MCC starts tuning
- Otherwise running on Pb target (30 nA)
| Shift | ABU | BANU | BNA | ER |
|---|---|---|---|---|
| 8/12 Day | 4.24 h | 3.3 min | 3.70 h | 8 h |
| 8/12 Swing | 2.97 h | 1.40 h | 3.63 h | 8 h |
| 8/13 Owl | 6.49 h | 0.30 h | 1.20 h | 7.93 h |
| Total | 13.70 h | 1.76 h | 8.53 h | 23.93 h |
Shift Reports
Reports
- Harp scans: IHA5C11, IHA5C11B, our harp, convergence fits; looks very good, much better than scans from last night.
Issues
Plans
Saturday
| Shift | ABU | BANU | BNA | ER |
|---|---|---|---|---|
| 8/13 Day | 6.16 h | 0.14 h | 1.70 h | 7.87 h |
| 8/13 Swing | 4.80 h | 0.38 h | 2.82 h | 7.93 h |
| 8/14 Owl | 6.75 h | 0.29 h | 0.97 h | 7.9 h |
| Total | 17.71 h | 0.81 h | 5.49 h | 23.70 h |
Shift Reports
Issues
- one locked up FCAL base; shift crew followed reset procedure
Sunday
| Shift | ABU | BANU | BNA | ER |
|---|---|---|---|---|
| 8/14 Day [5] | 6.46 h | 0.21 h | 1.33 h | 7.82 h |
| 8/14 Swing [6] | 5.62 h | 0.39 h | 2.00 h | 7.95 h |
| 8/15 Owl [7] | 6.24 h | 0.46 h | 1.30 h | 7.58 h |
| Total | 18.32 h | 1.06 h | 4.63 h | 23.35 h |
Shift reports
- Day shift summary
- Swing shift summary
- Owl shift summary
- Early Riser shift summary
Tuesday August 16
Past 24 hours
- We did a TAC run while Hall C was installing their aerogel
- Otherwise production running on empty target
Shift Reports
| Shift | ABU | BANU | BNA | ER |
|---|---|---|---|---|
| 8/15 Day [8] | 6.15 h | 0.78 h | 1.07 h | 8.0 h |
| 8/15 Swing [9] | 5.89 h | 0.36 h | 1.75 h | 7.77 h |
| 8/16 Owl [10] | 3.98 h | 0.12 h | 3.90 h | 7.88 h |
| Total | h | h | h | h |
Reports
Issues
- Excursions of AC.y beam position still ongoing, but less frequent
- The acceptable tolerance in 0.2 mm from nominal; so, most of these blips are to far.
Plans
- Continue with prodcution data on empty target through Thursday morning.
- At 10 am pass change for Hall C 4-pass --> 3-pass
- Wednesday at noon, Hall C might swap their aerogel again; this would be an opportunity for another TAC run if needed. It was decided this is not needed.
Wednesday August 17
Past 24 hours
- 9:13 am MCC starts Hall C pass change 4-pass --> 3-pass
- Mark Dalton accesses hall and changes 3 FCAL bases [11]
- 18:00 MCC calls it a night
- PD summary
Shift Reports
- Day shift summaries
- Swing shift summary
- [ Owl shift summary]
- [ Early Riser shift summary]
| Shift | ABU | BANU | BNA & ACC | ER |
|---|---|---|---|---|
| 8/16 Day [12] | 0.82 h | 0.13 h | 7.05 h | 7.67 h |
| 8/16 Swing | h | h | h | h |
| 8/17 Owl | h | h | h | h |
| Total | 0.82 h | 0.13 h | 7.05 h | 7.67 h |
Reports
Issues
Plans
- Continue with prodcution data on empty target through Thursday morning.
- Start with an amo run; then start a fresh cycle from the top.
