RC meeting and Run Plan, Monday December 6th
RC Meeting Information
Run Coordinator: Eric King
Location: Counting House Conference Room
Time: 3:15PM
Remote connection link: https://bluejeans.com/256205934
Toll-Free Number (U.S.& Canada): 1-888-240-2560
Bluejeans CODE: 256 205 934
Upcoming Shifts
Shifts for this RC period are largely covered. People can make Brian's job this coming weekend much much easier by signing up for a shift or two now. :)
Accelerator and Hall Status
Overall beam quality over the weekend was good.
- (Accelerator) No major events.
- (Hall) Litany of minor DAQ problems all of which Alexandre has quickly resolved.
- (Hall) Data storage/moving issues. Bob is currently working on this [1] [2] [3] [4].
- (Hall) Plastic absorber test by Bodgan successful [5] [6] [7] [8].
- Current increased on LD2 to 10uA and LH2 to 12uA.
Run Plan
Continue taking production data. :) We are currently in Cycle 7.
Data Collected (RC Week)
Data collected by shift.
Week 12/1 thru 12/8 | ||||
---|---|---|---|---|
Triggered Events (Millions) | ||||
Day | Shift | LH2 | LD2 | Dummy |
Dec 1 | SWING | 10.0 | - | - |
Dec 2 | OWL | 1.0 | 20.2 | - |
DAY | - | 60.6 | - | |
SWING | 20.5 | 5.6 | 2.7 | |
Dec 3 | OWL | - | 43.4 | - |
DAY | 20.4 | 27.0 | - | |
SWING | - | 38.2 | - | |
Dec 4 | OWL | - | 48.2 | - |
DAY | 7.9 | 40.9 | - | |
SWING | - | 44.0 | 3.5 | |
Dec 5 | OWL | 13.0 | 40.8 | - |
DAY | - | 47.3 | - | |
SWING | 12.9 | 30.1 | - | |
Dec 6 | OWL | - | 50.2 | - |
DAY | 12.1 | 30.3 | - | |
SWING | - | 30.1 | - | |
Dec 7 | OWL | |||
DAY | ||||
SWING | ||||
Dec 8 | OWL | |||
DAY | ||||
Total Triggered Events: | 97.8 | 556.9 | 6.2 |
By Cycle:
Week 12/1 thru 12/8 | |||
---|---|---|---|
Triggered Events (Millions) | |||
CYCLE | LH2 | LD2 | Dummy |
1 | 11.0 | 80.8 | 2.7 |
2 | 20.5 | 76.0 | - |
3 | 20.4 | 86.4 | - |
4 | 7.9 | 84.9 | 3.5 |
5 | 13.0 | 88.1 | - |
6 | 12.9 | 80.3 | - |
7 | - | ~60.4 | - |
8 | |||
9 | |||
Totals | 97.8 | 556.9 | 6.2 |
Opportunistic Access Requests
- [Ralph] Timing hodoscope (remove card which will stay in hall).
- [Maria/Todd] GRINCH (Could use any reasonable amount of time).
- [Holly or anyone qualified] Escorted access to get a visual inspection of the INFN JO GEM.
- Would require a extended down (Holly lives ~20 minutes away, OWL is okay).
- Removal of INFN J2 from Hall [Jessie has been contacted about this; will be completed over winter break barring an opportunistic access before then].
- [Sebastian] BB Trigger (Trig ref) and check TDC channels
Unresolved Issues
- [Resolution underway] Hodoscope HV alarms going off [9]; I created a HALOG entry and tagged Ralph/Rachael [10]. Apparent repeat of issue on 11/25 [11]. Ralph came in to double check the issue and make sure it wasn’t a hodoscope hardware problem. Ralph will be coordinating with Stephen Wood on a resolution.
Subsystem Updates (From Meeting)
- HCal
- HV crate drop to zero resolved by soft reset [12] [13]. Shift crew is asked to call HCAL expert if this happens again.
- BBCal
- Nothing of note.
- Timing Hodoscope
- ...
- GRINCH
- [Brad] Establish plan for GRINCH data taking (<1hr, would need DAQ expert as well).
- If this is completed this evening GRINCH experts must be present to drive the brief data taking.
- GEMS
- Transient HV readings.
- Xinzhan requested we determine if the trip timing threshold can be reduced under 0.1 sec. Xinzhan has emailed Stephen Wood about this.
- It appears that the CAEN the INFN chambers use is capable of a trip dwell time of 0.1 sec.
- UV GEMS capable of a 1ms trip dwell time.
- Sparking noted on X/Y GEM once, U/V GEM twice... should HV be lowered by 50V? No consensus on whether or not the HV drop is needed.
- Beamline
- Unser calibration analysis coming along; will possibly be done this week.
- Replay analysis
- Modifications made to 50K replay.
- Transition to analysis needs to be made...
- Andrew has compiled to-do list for experts and responsible parties.
Other Items
Email from Bogdan to Jessie about production of new cover for a BB size vacuum window made from 1/8" Al plate to be installed with a request to complete this on the next RF recovery day. Email was CC'd to Alex, Brian, Andrew, Eric and myself.