RC meeting and Run Plan, Tuesday December 7th
From SBS wiki
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 Which Need To Be Filled
Many shifts were signed up for yesterday. Thank you. A total of 15 shifts remain until the winter break shutdown:
- Wed Dec 8th, OWL, SL
- Thur Dec 9th, OWL, TO
- Fri Dec 10th, OWL, TO
- Sat Dec 11th, OWL, SL
- Sat Dec 11th, DAY, SL
- Sat Dec 11th, DAY, TO
- Sat Dec 11th, SWING, TO
- Sun Dec 12th, OWL, SL
- Sun Dec 12th, DAY, TO
- Sun Dec 12th, SWING, TO
- Wed Dec 15th, OWL, SL
- Fri Dec 17th, OWL, TO
- Sat Dec 18th, OWL, TO
- Sat Dec 18th, DAY, TO
- Sun Dec 19th, DAY, TO
Accelerator and Hall Status
- (Accelerator) Extended downtime event that lasted approximately three hours [1].
- A phone call was made to the Crew Chief to ask if it was possible to get an escorted access for Zeke or Holly to perform a visual inspection of the INFN J0 GEM; unfortunately, the Crew Chief said that he was unable to spare anyone for an escorted access.
- (Accelerator) No planned RF recovery before winter break.
- (Hall) The pulser data runs for the GRINCH were performed during the aforementioned downtime [2] [3] [4] [5] [6] [7] [8] [9] [10].
- (Hall) Cosmics were taken during down time [11].
- (Hall) With regards to the GEM's trip dwell time: the INFN chamber HV PS module has a minimum dwell time of 0.1 sec; the UVA chamber Weiner MPOD HV modules have a minimum trip dwell time of 1 millisec. The GUI was updated to increase the mantissa of the trip time to accommodate milliseconds. [Email Chain: Xinzhan, Stephen Wood, et al.]
- (Hall) Sean has temporarily disabled fibers 16-19 to avoid DAQ crashes. These belong to the JO GEM [12] [13].
Run Plan
Continue taking production data. :) We entered Cycle 8 during OWL shift.
- (Running change) The total triggered events on LH2 was reduced by 50% from 12M to 6M. [Email Chain Bogdan, Alex, Brian, et al.]
- (Shifters) As per yesterday's RC meeting, there was an incident where all HCal HV values dropped to zero and a soft reset was performed in the Java GUI which fixed the issue. If this occurs again, Scott or Sebastian should be called [14].
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 (Running List)
- [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 [15]; I created a HALOG entry and tagged Ralph/Rachael [16]. Apparent repeat of issue on 11/25 [17]. 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 (Will be filled in after meeting)
- HCal
- Item.
- BBCal
- Item.
- Timing Hodoscope
- Item.
- GRINCH
- Item.
- GEMS
- Item.
- Beamline
- Item.
- Replay analysis
- Item.
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.
