STAR Protected

March 2

  • RAW to MuDst production
    • pp500_production_2017 (physics)
      425280 files have been converted out of 654286
      Around 66% Completion

March

 

NPE v2 analysis note

 

FST purple cable length

I realized and mentined a number of times that the cable route from FST to PPB will have different length

I  requested the following from Felix and Rahul

Council meeting

Preliminary Agenda

February 23

  • RAW to MuDst production
    • pp500_production_2017 (physics)
      409176 files have been converted out of 654286
      Around 64% Completion

February 16

  • RAW to MuDst production
    • pp500_production_2017 (physics)
      394786 files have been converted out of 654286
      Around 61% Completion

TPC calibration reviews

2021-02-16 09:30
America/New York
Tuesday, 16 February 2021
virtual , at 14:30 (GMT), duration : 00:00
 The talk will be posted on BNL indico
https://indico.bnl.gov/event/10740/

T
his page will be used for draft talks
TimeTalkPresenter
09:00TPC Calibration Organization ( 00:20 ) 1 fileGene Van Buren (BNL)
09:30surveys ( 00:20 ) 1 fileF.Videbaek
09:50Resources for HLT and Express Production ( 00:20 ) 1 fileHongwei Ke
11:00TPC Distortions ( 00:40 ) 1 fileGene Van Buren (BNL)
11:40FXT event-by-event correction ( 00:20 ) 1 fileIrakli
12:00TPC calibration ( 01:10 ) 1 fileYuri Fisyak

February 9

  • RAW to MuDst production
    • pp500_production_2017 (physics)
      394672 files have been converted out of 654286
      Around 61% Completion

February 2

  • RAW to MuDst production
    • pp500_production_2017 (physics)
      394469 files have been converted out of 654286
      Around 60% Completion

February

 

2021

STAR SOFTWARE NEWS Feb 2, 2021
---------------------
The present release assignment:  
             SL09g_embed (SL09g_2Embed_v10)  ROOT_LEVEL 5.22.00
             SL10c_embed (SL10c_embed_   

New Gating Grid Driver issues


1/31/2021
It was decided to go back to old GG driver

 1/30/2021
Summary and plots of some early cosmics data

TPC weeklu

2021-02-17 15:00
America/New York
Wednesday, 17 February 2021
, at 20:00 (GMT), duration : 00:00

TPC weekly

2021-02-24 15:00
America/New York
Wednesday, 24 February 2021
, at 20:00 (GMT), duration : 00:00
 minutes:

hardware
- the west laser had a LV power supply with a bad fuse. Alexie got an access fand fixed in < 1 hour
- Alexei monitor gas and will adjust methan concentration slightly.
- new hot channel in sector1. Have asked Tonko to mask out

FF request.
Gene summarized the FF request as it had emerged from the calibration review. It is important to run FF setting to seperate alignment, E*B distortins
but having data from both polarities. Yuri & Gene confirm that the 20M RF is a good sample from RFF and it was concluded we should request a change as soon as practical and on Wednesday access day at latest. Alexei brought up request to at at the time of switch that a high stat laser run ~20k is taken jest before magnet change and another one is taken with FF after the change, and magnet stabilized.

Yuri showed the dedx for his run 20 calibration for collider data and fixed target.There is some room for improvement in particular for the FXT target data.
Yuri showed that the readout of the magnets current fluctuate on a 15 sec time sacle between two distinct values. Current code only has one magnet value per run so it gives rise to distinct bands of say K0_as there is a scale factor between current read and Field suggest to use average value for future.

Gene discussed a Minor problem in sector alignment distortion correction as shown in attached slide on web page.
Looked at run 18 distortion maps and notice a missing featue that he expected namely spikes missing between inner and outer sector. This is due to an un intentional change of code in 2014. Demonstrated with differences that these effect are likely small. One measure of #primary tracks is sub-promille.



TimeTalkPresenter
15:00Run XX dE/dx calibration ( 00:05 ) 0 filesYuri Fisyak
15:05Run XXI Ks0 mass and STAR main magnet current ( 00:05 ) 0 filesYuri Fisyak
15:10Minor problem in sector alignment distortion correction ( 00:20 ) 0 filesG. Van Buren (BNL)

TPC weeklu

2021-03-03 15:00
America/New York
Wednesday, 3 March 2021
, at 20:00 (GMT), duration : 00:00

TPC weeklu

2021-03-10 15:00
America/New York
Wednesday, 10 March 2021
, at 20:00 (GMT), duration : 00:00

TPC weekly

2021-02-10 15:00
America/New York
Wednesday, 10 February 2021
, at 20:00 (GMT), duration : 00:00


agenda
- hardware status
- software updates
- calibration review

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TPC weekly

2021-02-03 15:00
America/New York
Wednesday, 3 February 2021
, at 20:00 (GMT), duration : 00:00
aAgenda
- hardware status
- run progress
- software
- TPC Review Planning


Charge to committee

  We just formed the STAR TPC calibration review committee. It is timely and critical to look at the offline calibration tasks and issues. The committee is charged to evaluate the readiness of the TPC calibration for the BES-II data production and provide answers to the following questions by the end of March 2021:

 

1.     What is the status of the tracking and production calibration? 

2.     Where is the bottleneck of the TPC calibration procedure? 

3.     Are there enough collaboration manpower and resources for the tasks? 

4.     How are the online/operation/fast-offline/PWGs efforts coordinated to accomplish the goals? 

5.     Is there a clear document of procedures in calibration and what are the unexpected and expected issues in BES-II datasets? What are the steps in calibration, and how are the current responsibilities assigned?

6.     What is the timeline and path toward completion of whole BES-II calibration for production? 

7.     Any lesson learned toward future runs?

 

The members are:

Zhangbu Xu (Chair)

Bill Christie

Carl Gagliardi

Frank Geurts

Marian Ivanov

Ivan Kisel

Tonko Ljubicic 

Maria Stefaniak

Jim Thomas

Qinghua Xu

Xin Dong (ex officio)

Rongrong Ma (ex officio)


Talks and subject area.
Geometry & alignment (Yuri)
•  Drift velocities
•  dE/dx
•  Specifics for Run 19
•  Cosmic data
•  Beam data
•  Laser data
•  What is the procedure for alignment; How is it documented
•  Bottleneck in timely calibrations
•  Validation procedures and QA
•  Lessons and procedures learned from iTPC prototype commissioning
•  Present/summarize clearly the open/unknown issues and potential concerns (all talks)

Surveys done (Flemming)
• Alexei, Jim and Yuri (operation survey)
• Other detectors as calibration tools (GMT, TOF,  BEMC)
• How they are included in the calibration procedure

Correction Distortions (Gene)
• Dynamic distortions: SpaceCharge & GridLeak
• Static distortions

Resources for Online and express stream (Hongwei)
•  Recap of resources
•  Activities
•  Relation to FastOffline

Calibration (Irakli)
•  T0
•  Long bunch timing, FXT and collider BES-II
•  How is express and fast offline used in calibration
•  Resource/tools/datasets use

QA,QC (BES-II)   (Dan)
•  Recap of resources
•  How are working groups involved in this
•  Feedback, requirements to calibrations


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TPC weekly

2021-01-27 15:00
America/New York
Wednesday, 27 January 2021
, at 20:00 (GMT), duration : 00:00
 agenda
-- hardware status
-- startup plans


electronics update (Tonko)
a brief update regarding both TPX (aka outer sectors)
and iTPC (inner sectors) electronics and gating grid.

1) We have the new (Tim's) gating grid connected.
I calibrated it and it looks OK to me. But we should be
a bit weary because we had problems before.
One outcome is that it is relatively noisier at the
opening time than the old GG so one should pay attention.

2) The pulser runs have been taken and the gains
have been established as well as the bad-channel
list. Pretty much the same as last year because
we had no time (COVID and all) to mess with swapping
FEEs to check the problem and see where the
noise comes from: FEE or padplane.

The gains have been loaded into the database.

3) We _did_ swap the broken FEEs and RDOs.
As luck would have it, a single FEE in the ITPC worked
all Fall/Winter but failed as we closed the poletip.
It is masked.

Let's take it from here and see how we stand during

Charge for calibration review

Dear All,

  We just formed the STAR TPC calibration review committee. It is timely and critical to look at the offline calibration tasks and issues. The committee is charged to evaluate the readiness of the TPC calibration for the BES-II data production and provide answers to the following questions by the end of March 2021:

 

  1. What is the status of the tracking and production calibration? 
  2. Where is the bottleneck of the TPC calibration procedure? 
  3. Are there enough collaboration manpower and resources for the tasks? 
  4. How are the online/operation/fast-offline/PWGs efforts coordinated to accomplish the goals? 
  5. Is there a clear document of procedures in calibration and what are the unexpected and expected issues in BES-II datasets? What are the steps in calibration, and how are the current responsibilities assigned?
  6. What is the timeline and path toward completion of whole BES-II calibration for production? 
  7. Any lesson learned toward future runs?

 

The members are:

Zhangbu Xu (Chair)

Bill Christie

Carl Gagliardi

Frank Geurts

Marian Ivanov

Ivan Kisel

Tonko Ljubicic 

Maria Stefaniak

Jim Thomas

Qinghua Xu

Xin Dong (ex officio)

Rongrong Ma (ex officio)

 


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TimeTalkPresenter
15:00Residuals re-tested ( 00:20 ) 0 filesIrakli
15:20Comparison express production TFG19e and calibration production P20ic_calib for 19GeV AuAu2019 data ( 00:20 ) 0 files