STAR Protected
TPC weekly
2021-03-24 15:00
America/New York
Wednesday, 24 March 2021
virtual , at 19:00 (GMT), duration : 00:00
virtual , at 19:00 (GMT), duration : 00:00
agenda
- hardware status
- operations
- software
- big events
- update on test productions
Minutes:
hardware: There was a failure of LV for TPX. broken fan; replaced with spare available in IR.
Have ordered 3 more fans, special. 3 mo. delivery
After a massive trip, one HV section 20-4 itpc seem not to have been brought up and not noticed. Asked David
to check the readouts during this event.
We see very large events in run 19 reconstruction, and in current data taking
a) current activity is related to the beat-squeeze; discussed also at ops meeting. Under discussion what to happen
b) run-19 reco is related to some store with BMM running throughout some runs.
Discussion on TPC calibration. Good progress is being made. Additional discussions later this day.
- hardware status
- operations
- software
- big events
- update on test productions
Minutes:
hardware: There was a failure of LV for TPX. broken fan; replaced with spare available in IR.
Have ordered 3 more fans, special. 3 mo. delivery
After a massive trip, one HV section 20-4 itpc seem not to have been brought up and not noticed. Asked David
to check the readouts during this event.
We see very large events in run 19 reconstruction, and in current data taking
a) current activity is related to the beat-squeeze; discussed also at ops meeting. Under discussion what to happen
b) run-19 reco is related to some store with BMM running throughout some runs.
Discussion on TPC calibration. Good progress is being made. Additional discussions later this day.
Mar 24, 2021 03:00 PM
Mar 31, 2021 03:00 PM
Apr 7, 2021 03:00 PM
Apr 14, 2021 03:00 PM
Apr 21, 2021 03:00 PM
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TPC weekly
2021-03-31 15:00
America/New York
Wednesday, 31 March 2021
virtual , at 19:00 (GMT), duration : 00:00
virtual , at 19:00 (GMT), duration : 00:00
Agenda
-hardware
-operation
- test production progress
- AOB
-hardware
-operation
- test production progress
- AOB
Mar 31, 2021 03:00 PM
Apr 7, 2021 03:00 PM
Apr 14, 2021 03:00 PM
Apr 21, 2021 03:00 PM
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| Time | Talk | Presenter |
|---|---|---|
| 14:00 | new schema for Inner Sector alignment ( 00:20 ) 1 file | Hongwei Ke |
TPC weekly
2021-04-07 15:00
America/New York
Wednesday, 7 April 2021
virtual , at 19:00 (GMT), duration : 00:00
virtual , at 19:00 (GMT), duration : 00:00
TPC weekly
2021-03-17 15:00
America/New York
Wednesday, 17 March 2021
virtual , at 19:00 (GMT), duration : 00:00
virtual , at 19:00 (GMT), duration : 00:00
agenda
- hardware status
- operations
- software
- cluster quantization
-update on test productions
- hardware status
- operations
- software
- cluster quantization
-update on test productions
Mar 17, 2021 03:00 PM
Mar 24, 2021 03:00 PM
Mar 31, 2021 03:00 PM
Apr 7, 2021 03:00 PM
Apr 14, 2021 03:00 PM
Apr 21, 2021 03:00 PM
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TPC weekly
2021-03-10 15:00
America/New York
Wednesday, 10 March 2021
virtual , at 20:00 (GMT), duration : 00:00
virtual , at 20:00 (GMT), duration : 00:00
Minutes
No issue with TPC hardware
-Have adjusted methan content to make Vdrift more constatnt; there were several period in Feb with variations.
- powerdips and magnet trips during last weeks running.
The two runs in day 38 and 66 had outer sector 19 exhibit large excess of charge that extended for all pad and rows for about 150 timebins. See blog entries in https://drupal.star.bnl.gov/STAR/blog/videbaks/tpc-qa-2021 near top of page
Most likely a faulty GG driver board . Alexei suggested looking at signals from board during next maintanence day (unless it get really bad). Will talk to Tim on this.
Gene reported looking at laser un running 7.7 GeV for local clock vs. coll clock. Did not see any different between laser positions. Now looking at prompt hits for two conditions, (UPDATE: small shifts seen for the entire TPC by 14.1 ns, but not on the scale of 1 time bucket; documentation is here)
Yuri show plots
these are references for plots which we discussed today
1. Comparison RF and FF https://drupal.star.bnl.gov/STAR/system/files/TpcCSTransformations_0.pdf
-- the FF has only 34k events.Alignment same for two settings.
2. QA plots for RunXXI (express production) : https://www.star.bnl.gov/~fisyak/star/BES/
---
3. Lasers for different fields
-- no clear pattern. Sector 20 seems consistent for all fields. 20 has best lasers
4. Prompts for different VPD timing cuts
-- shows dependence on collisions timing (sum of VPD timing)
The last plots on meeting page only
No issue with TPC hardware
-Have adjusted methan content to make Vdrift more constatnt; there were several period in Feb with variations.
- powerdips and magnet trips during last weeks running.
The two runs in day 38 and 66 had outer sector 19 exhibit large excess of charge that extended for all pad and rows for about 150 timebins. See blog entries in https://drupal.star.bnl.gov/STAR/blog/videbaks/tpc-qa-2021 near top of page
Most likely a faulty GG driver board . Alexei suggested looking at signals from board during next maintanence day (unless it get really bad). Will talk to Tim on this.
Gene reported looking at laser un running 7.7 GeV for local clock vs. coll clock. Did not see any different between laser positions. Now looking at prompt hits for two conditions, (UPDATE: small shifts seen for the entire TPC by 14.1 ns, but not on the scale of 1 time bucket; documentation is here)
Yuri show plots
these are references for plots which we discussed today
1. Comparison RF and FF https://drupal.star.bnl.gov/STAR/system/files/TpcCSTransformations_0.pdf
-- the FF has only 34k events.Alignment same for two settings.
2. QA plots for RunXXI (express production) : https://www.star.bnl.gov/~fisyak/star/BES/
---
3. Lasers for different fields
-- no clear pattern. Sector 20 seems consistent for all fields. 20 has best lasers
4. Prompts for different VPD timing cuts
-- shows dependence on collisions timing (sum of VPD timing)
The last plots on meeting page only
Flemming Videbaek is inviting you to a scheduled ZoomGov meeting.
Topic: My Meeting
Time: Mar 10, 2021 03:00 PM Eastern Time (US and Canada)
Every week on Wed, until Apr 21, 2021, 7 occurrence(s)
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Apr 21, 2021 03:00 PM
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FST purple cable length
Final summary
The new plot (first) has the proper range of cable:
Final proposal is to divide into two groups
February 23
- RAW to MuDst production
- pp500_production_2017 (physics)
409176 files have been converted out of 654286
Around 64% Completion
- pp500_production_2017 (physics)
CVS->Git
On June 1, 2021, the main repository for STAR offline software has migrated from CVS to GitHub (https://github.com/star-bnl).
February 16
- RAW to MuDst production
- pp500_production_2017 (physics)
394786 files have been converted out of 654286
Around 61% Completion
- pp500_production_2017 (physics)
TPC calibration reviews
2021-02-16 09:30
America/New York
Tuesday, 16 February 2021
virtual , at 14:30 (GMT), duration : 00:00
virtual , at 14:30 (GMT), duration : 00:00
The talk will be posted on BNL indico
https://indico.bnl.gov/event/10740/
This page will be used for draft talks
https://indico.bnl.gov/event/10740/
This page will be used for draft talks
| Time | Talk | Presenter |
|---|---|---|
| 09:00 | TPC Calibration Organization ( 00:20 ) 1 file | Gene Van Buren (BNL) |
| 09:30 | surveys ( 00:20 ) 1 file | F.Videbaek |
| 09:50 | Resources for HLT and Express Production ( 00:20 ) 1 file | Hongwei Ke |
| 11:00 | TPC Distortions ( 00:40 ) 1 file | Gene Van Buren (BNL) |
| 11:40 | FXT event-by-event correction ( 00:20 ) 1 file | Irakli |
| 12:00 | TPC calibration ( 01:10 ) 1 file | Yuri Fisyak |
February 9
- RAW to MuDst production
- pp500_production_2017 (physics)
394672 files have been converted out of 654286
Around 61% Completion
- pp500_production_2017 (physics)
February 2
- RAW to MuDst production
- pp500_production_2017 (physics)
394469 files have been converted out of 654286
Around 60% Completion
- pp500_production_2017 (physics)