T9/PS run Daily Briefings - 3PM
Daily briefing minutes
August 11 - 32-S-C22
Communications | - Running since this morning 9AM with 2 spills, 3 spills available since 2.30PM. Currently taking tagged photons from 1GeV e beam.
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- 60K evts of 2.5GeV e taken for reference after shutdown
- Sh became inefficient and empty events were triggering the si tagger; S3 is now isntalled as a veto over the S2 light-guide (Nicola M)
- verified feasibility of 500MeV beam: rate is ok but beam is larger, will have to verify if S3 veto is ok and final tagging rate
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Program | - agreed program here
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Notes |
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August 10 - 13-3-005
Communications | News from PS/PS Users Meeting:
-intervention on QED2 scheduled to end 5PM; spare was found to be not working, a second spare was available but needs to be equipped with a new vacuum chamber that will be taken from the 1st non good spare
- beam loss in the separation magnet between east hall south and north branch; currently this is the reason why we have no beam; if replacement of QED2 cures the loss we should get beam back tonight, otherwise a technical intervention will be required, and cooling time is 4 days minimum (currently the radiation level at the separation magnet is 2mSv)
- supercycle changes: agreed changes for next week so that we get 3 spills in east hall during working hours and 4 during night and week-ends; the fourth spill will come around 4 sec later that the first three. new changes wil be discussed for week 34 (check weekly schedule here)
- Luca to investigate on the possibilty of an extension with the MICE group which is supposed to run after GLAST |
Online&DAQ Report
| Ric confirms that agreed modifications on spill structure for next week will not hamper DAQ sync and data merge online
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Communications | - Magnet failure: MNP17 colling system failure at 1AM stopped data taking for several hours but no damage on hardware. Physics restarted after 2 hours w/o silicon tagger for CAL calibrations. Magnet repaired in the morning
- CU cooling system changes: CU/ISC cooling coil in the ISC base plate leaked: it was emptied and is now non available, we will rely on top cooling coil as no intervention is possible; the chiller was moved closer to the ISC to minimize thermalization of coolant with ambient through thermal exchange with the zone air, now chiller more efficient; fan added to cool XY table motors. Please look at the temperature during your shift |
Online Report
| - DAQ sync studies going on
- CU: Ric investigating phasing errors |
Offline Report
| Francesco:
- pipeline nicely running
- 1st 1000 evetns in SVAC ntuple duplicated
Claudia:
- offline monitor requires script to parse rcReport info and link to MC files (Navid working on that)
- MC and CU cooprdinate systems mismatch (check with Philippe)
Dave:
- no CAL-HI triggers in last night data as fhe values were saturated
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Program | - Complete DAQ sync studies
- perform CU timing studies to optimize TACK (timing/script vs ext trigger manual delay)
- explore beam conditions
- ACD calibrations (ideally 5gev p, if NA 5gev e)
- CAL runs with e (Benoit)
- Tagger calibration start on 29 morning |
Notes | - Fill elogbook
- Take your shifts and launch runs yourself
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