Difference between revisions of "Run Planning Meeting Notes, Mar 1-Mar 7, 2018"

Latest revision as of 09:36, 7 March 2018

<- Back to Run Coordination Meetings:Fall2017 Spring2018 Run

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

Thursday, March 1 @ 8:45am

1. Notes from the previous 24 hours:
   • MCC reports
   • Production Data with 58um JD70-100 diamond in the early afternoon
   • At about 6pm, we started low intensity scan as proposed in Justin's google sheet
   • For these runs: (i) Hovanes reverted the collimator position to the same value used in the previous current scan, (ii) We reverted to the previous value of the CDC window offset
   • [Beam Position Strip Chart, AC, PS Coincidence Monitoring https://logbooks.jlab.org/entry/3540484] (small interruption from 9pm-10pm)
2. Issues:
   • (fixed) Sean updated the CDC timing for the low intensity scan, see [1]. This has to be switched it back in production (see also this entry). How to restore production running (by Elton) [2].
   • Hall D BEM stopped reporting yesterday near 6pm [3] [AD]
3. Reports (some of these shown at the AWG yesterday):
   • Production vertex position before/after collimator shift (runs 40496 and 40509) [AA]
   • Pedestals Monitor FCAL, BCAL (run 41546 - production) [4] [SF]
   • Beam Trip map updated in CCDB [5] [DL]
   • low level monitoring [6] [TB]
   • yesterday AWG meeting [7]
   • Slope of the coherent peak high energy edge [8] [JS]
4. Planning:
   • updated run time chart [9]
5. Today's run plan Run Plan Google Calendar Accel. Run Plan Google Calendar:
   • morning: harp scan [10],[11],[12]
   • Production
   • Hall D low-current orbit lock test for TAC runs
   • Production: back 4 more

Friday, March 2 @ 8:45am

1. Notes from the previous 24 hours:
   • Hall D low-current orbit lock test for TAC runs: succeeded in good horizontal orbit lock down to a few nA [13] - another test was planned today at noon
   • Production runs: JD70-100 150nA and AMO, 180nA; Day: [14], Swing: [15], Owl: [16]
   • magnet north linac -- at least 2 hours (maybe 6): program access
2. Issues:
   • DAQ crashes at go (Sasha fixed it) ~40 mins banu https://logbooks.jlab.org/entry/3540927
   • downtime - issue with one of the cavities ~1.5h (2L15-4 dropping zone from HV; Cavity bypassed; still dropping zone. EES-RF contacted.)
   • FDC trips during owl shift [17] [SF, VC]
3. Reports
   • cdc rates during current scan 41343-41347 [18] [BZ]
   • low level monitoring [19] [TB]
   • Hall D BEM stopped reporting yesterday near 6pm [20] [AD]
   • CDC pressure alarm [21] [CG]
   • Muon Chamber noise [22][23][24] [DL]
4. Planning:
   • updated run time chart [25]
5. Today's run plan (TBD) Run Plan Google Calendar Accel. Run Plan Google Calendar:
   • harp scan
   • Sasha planning ~30 min run using the thicker 750 um thick converter. Goals: data sample for Sebastian to evaluate possible pile-up in the TPOL and pre-scale for PS trigger
   • Production running

Saturday, March 3

1. No meeting today

Sunday, March 4 @ 10:30am

1. Notes from the previous 24 hours:
   • Production sequence; run with ~100M events with changed converter to 750um [26].
   • Trigger graph
2. Issues:
   • DAQ: (20 minutes of resets), roc_reboot of rocPS1, error of wrong pedestal in rocPS1; FDC HV alarm on c2 hv4: reset and rebooted HV. [27] [CG]
3. Reports
   • today expect beam down (due to cavity issue) ~3h [MCC]
   • low level monitoring [28] [TB]
   • cdc rates during intensity scan [29] [BZ]
4. Today's run plan (updated) Run Plan Google Calendar Accel. Run Plan Google Calendar:
   • ~11:30am started raw mode
   • threshold scan for CDC
   • empty target + harp scan
   • back to production
5. Planning:
   • Next Monday ~6h (FSD+optics): program work in the Hall

Monday, March 5 @ 8:45am

1. Notes from the previous 24 hours:
   • 7:45am MCC meeting report: T. Satogata na BPM studies ~9am ; 10-11am opportunistic beam; starting 11am rapid access to Hall; requested survey of tagger Hall for controlled access.
   • yesterday: raw-mode 10 mins test
   • threshold scan for CDC
   • empty target
   • production
2. Issues:
   • TAGM column occupancy [30] [CG]
   • High level servers from rootspy not staying alive -> reboot rocTAGMH crate [31] [CG, DL]
   • DigiHits plot differences [32]
3. Reports
   • low level monitoring [33]
4. Today's run plan (updated) Run Plan Google Calendar Accel. Run Plan Google Calendar:
   • updated time chart [34]
5. Planning:
   • Morning: access starting 11am. All work done by 3pm (none in the Hall).
   •  ??? back to physics program after beam downtime

Tuesday, March 6 @ 8:45am

1. Notes from the previous 24 hours:
   • power outage [35]
   • 7:45am MCC meeting report: replace of transformer may take ~ 1 week. Cancel next 48 hours shifts.
   • Hall D vertical cavity BPM lock test [36] [TS]
   • Controlled Access:
     • FCAL base replacement [37] [CG]
     • NPS Compcal prototype [38] [AS]
     • Swapped electronics board in Tagger Hall [AB]
2. Issues:
   • No communication to FDC/CDC HV in CAEN mainframe [39] [LP, HE]
   • Servers for BEM HALLD:p, BEM HDTGR:p down [40] [AD, SD]
3. Reports
   • low level monitoring
   • Effect of cdc time cut on ρ and ω reconstruction [ST]
   • intensity scan update [JS]
   • last week: time-chart [41], metrics [42]
4. Today's run plan (updated) Run Plan Google Calendar Accel. Run Plan Google Calendar:
5. Planning:
   • access to Hall for major works.
6. Announcements?

Wednesday, March 7 @ 8:45am

1. Notes from the previous 24 hours:
   • 8:00am MCC meeting report:
     • transformers
     • ~ 1 week w/o beam
     • run extension
2. Reports:
   • PWO calorimeter prototype installed behind the PS [43] [AS, VB, TC, NS, IL]
3. Discussion: Dependence of Efficiency on Rate [44]
4. AOB