The Bluejean connection
Title:  STAR TPC Weekly
Description: Weekly TPC meeting for the STAR Collaboration
Community: STAR


agenda:
- hardware 
  hardware progress
- software
 update on 3He effeciency; Yue Hang
https://drupal.star.bnl.gov/STAR/system/files/he34embedding3rdnew_1.pdf

minutes

TPC meeting Nov 18, 2020

 

-hardware

 Alexei and Nicolai another test round on adding SF4 to P10 at outer sector in clean room. Had to use +65V to get same gain as P10. Still some issues if this is ok. And will do another set of measurements in 2 weeks or so

Also working to get laser system back into shape.

Tim is installing gating grid drivers. Flemming confirmed that David is involved in get the SC for GG up and running. We should contact him for progress.

 

-software

Presentation by Yue on further check on the 3He, 4He efficiency and issues.

Presentation is linked on meeting web page.

Presented nicely where the consequences show us where there are differences splittracks, 3He vs. protons. There is still no understanding how the change in pedestal should affects stuff.

 

Discussion on run-19 alignment. Irakli has done a bit more work; he and Yuri are having discussion. Yuri shows some preliminary work documenting the different mass splitting depending on library version and corrections applied.

 

No meeting on Wed 25 just before thanksgiving.

 

Xin would like to have an updated report at next S&C meeting (not 25 either)

Phone Dial-in
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Meeting ID: 628 045 566

Direct link: https://bnl.bluejeans.com/628045566

Hardware repairs (Tonko, Scheetz)
Power cables should be crimped (100' and pigtails) as many are bad. El group looking for help
Gating Grid Drivers will be replacd Tim has to maake nesc fixes, should be installed in about 2 weeks
Repairs of RDO and FEE continuing

AL working on optical parts for laser, installing NMR for Mag field calibration, looking at response with outer sector in clean room
added SF4 gas. Nicolai wll come to BNL again next week?


Preliminary report from Yuri on  difference between online and offline cluster 
https://drupal.star.bnl.gov/STAR/system/files/FCF_online_offline.pdf


3He effeciency  https://drupal.star.bnl.gov/STAR/system/files/he34embedding.pdf

 The Bluejean connection Direct link: https://bnl.bluejeans.com/628045566 

https://drupal.star.bnl.gov/STAR/pwg/spin/weekly-pwg-meetings