Difference between revisions of "Run Planning Meeting Notes, Apr12-Apr 18, 2018"

Revision as of 21:04, 15 April 2018

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• Trigger graphs
• Trigger Spreadsheet
• Run Plan Google Calendar
• Accel. Plan Google Calendar

Thursday, April 12 at 08:45

1. 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.
2. 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)

1. 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)
2. 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?
3. AOB

Friday, April 13 at 08:45

1. 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
2. Issues:
   • Bill noticed some minor inconsistencies with monitoring plots (beta vs. p, beam energy, and trigger bit)
3. Reports:
   • Harp scan (Hovanes)
   • Materials scan (Lubomir)
   • Low level monitoring (Thomas)
4. 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

1. 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

1. Notes from the previous 48 hours:
   • Production running plagued by pass 2 separator trips Friday night and Saturday morning
   • Low current AC test delayed due to voltage adapter problem. Tentative postponement until Wed.
   • New preamp (and calibration) fixes noisy CDC channels (Naomi)

1. Issues:
   • Low yield of physics signals (Mark D.)
     • Larger variations in detector timing than normal (Sean)
     • Range of interesting timing features (Mark D.)
   • Newly inefficient PS channel (Dave)

1. Reports
   • [1], [2] Figure of merit vs. virtual electron spot size (Justin)
   • Sunday's harp scan (Hovanes)
   • PS baselines adjusted (Sasha)
2. Run Plan
   • 8hr beam studies today
     • Controlled access to adjust shielding, replace AC voltage adapter, and ?
   • Production this evening
   • RF recovery tomrrow
3. AOB

Tuesday, April 17 at 08:45

Wednesday, April 18 at 08:45