Difference between revisions of "Run Planning Meeting Notes, Apr12-Apr 18, 2018"
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(→Tuesday, April 17 at 08:45) |
(→Tuesday, April 17 at 08:45) |
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#* Sean let me know he was checking on calibrations | #* Sean let me know he was checking on calibrations | ||
#* Trickles of beam at 6 pm | #* Trickles of beam at 6 pm | ||
| − | |||
#Issues: | #Issues: | ||
#* [https://logbooks.jlab.org/entry/3561700 Noisy CDC channel] (Naomi) | #* [https://logbooks.jlab.org/entry/3561700 Noisy CDC channel] (Naomi) | ||
| − | #* [https://logbooks.jlab.org/entry/3561979 TAGH volatages not turned off after TAC run] (Sasha) | + | #* [https://logbooks.jlab.org/entry/3561979 TAGH volatages not turned off after TAC run], [https://logbooks.jlab.org/entry/3561878 PS baselines adjusted] (Sasha) |
#Reports | #Reports | ||
#* [https://logbooks.jlab.org/entry/3561920 Materials Scan] (Lubomir) | #* [https://logbooks.jlab.org/entry/3561920 Materials Scan] (Lubomir) | ||
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#** Switch AC to 3.5 mm collimator | #** Switch AC to 3.5 mm collimator | ||
#*** Settings to run at from beam line group? | #*** Settings to run at from beam line group? | ||
| + | #*** Beam tune? | ||
#** Reinstall shielding | #** Reinstall shielding | ||
Revision as of 07:05, 17 April 2018
<- Back to Run Coordination Meetings:Fall2017 Spring2018 Run
Contents
Thursday, April 12 at 08:45
- Notes from the previous 24 hours:
- TAC run (evening strip chart) was finished around 10pm. Took data with both the 750um and 75um converter.
- Production started around 11 pm and has continued through the night.
- Issues:
- When adjusting a procedure, please contact the expert before doing so to make sure the changes you make are okay.
- ~1hr 20 mins of DAQ issues while the target was filling and we could not run in raw mode.
- PS scalers (Alexandre)
- Reports:
- Correlation between beam Y position and CDC HV current (Beni)
- Attenuation lengths (Lubomir)
- PS acceptance from TAC run with 1/3 of data (Sasha)
- Low Level Monitoring Report (Thomas)
- Run Plan
- Pass change this morning
- Short access to install copper and tungsten shields
- Move muon chamber back into beam line
- Production running
- Harp scan when beam comes back
- Fast raster scan postponed to Monday
- Any more systematic studies we want to do?
- Pass change this morning
- AOB
Friday, April 13 at 08:45
- Notes from the previous 24 hours:
- No beam until 4pm
- Finished materials scan at 5:35pm
- Finished raw mode run
- Bill broke the 7hr mark for ABU during his shift- first time a hall has done that this spring
- Muon chamber installed with the steel bar
- New radiator on GEM TRD
- Shields installed on profiler
- Issues:
- Bill noticed some minor inconsistencies with monitoring plots (beta vs. p, beam energy, and trigger bit)
- Reports:
- Harp scan (Hovanes)
- Materials scan (Lubomir)
- Low level monitoring (Thomas)
- Run Plan
- Todd wants to try a low current lock on the active collimator at ~1pm
- Trigger studies (~2hr)
- Hovanes and Sasha need to test V wire and lock on active collimater (~10 minutes)
- Production and switching to the thin diamond next week
- AOB
- Have Lubomir for opportunistic access to remove Cu and half of W shield- any others? Beam studies on Monday and RF recovery Tuesday
- Run meeting this weekend?
Saturday, April 14 at 08:45
No meeting
Sunday, April 15 at 08:45
No meeting
Monday, April 16 at 08:45
- Notes from the previous 48 hours:
- Accelerator ran OK this weekend- downtime events every shift
- Low current AC test delayed due to voltage adapter problem. Tentative postponement until Wednesday?
- Issues:
- Low yield of physics signals (Mark D.)
- Newly inefficient PS channel (Dave)
- Trouble putting rootspy histograms in logbook (Mark I.)
- We will not tolerate identity theft
- Transmission last night (Beni)
- Reports
- New preamp (and calibration) fixes noisy CDC channels (Naomi)
- [1], [2], (Revised entry) Figure of merit vs. virtual electron spot size (Justin)
- Sunday's harp scan (Hovanes)
- PS baselines adjusted (Sasha)
- Low level monitoring (Thomas)
- Run Plan
- 8hr beam studies today
- Controlled access to adjust shielding, replace AC voltage adapter, FCAL bases, and other technician work
- Finish materials scan
- Production this evening
- RF recovery tomorrow
- Switch AC to 3.5 mm collimator
- Take data through Thurs. with this setting: 150 nA, 75 micron converter, 0/90, AMO
- proper beam tuning?
- Switch AC to 3.5 mm collimator
- Best time to try to try the low current lock on the AC for the next TAC run? Tentatively postponed until Wed. before raster tests
- 8hr beam studies today
- AOB
Tuesday, April 17 at 08:45
- Notes from the previous 48 hours:
- Reinstalled 50 micron W and removed Cu shields
- Active collimator voltage adapters repaired
- 9 FCAL bases replaced
- Sean let me know he was checking on calibrations
- Trickles of beam at 6 pm
- Issues:
- Reports
- Materials Scan (Lubomir)
- Harp scan (Hovanes)
- Low level monitoring (Thomas)
- Run Plan
- RF Recovery
- Switch AC to 3.5 mm collimator
- Settings to run at from beam line group?
- Beam tune?
- Reinstall shielding
- Switch AC to 3.5 mm collimator
- RF Recovery
- AOB
