Difference between revisions of "TDIS Bi-monthly meeting, 2020 February 11"

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Back to [[Tagged DIS run group]] >> [[Tagged_DIS_run_group#Bi-monthly TDIS meetings|Bi-monthly TDIS meetings]]
 
Back to [[Tagged DIS run group]] >> [[Tagged_DIS_run_group#Bi-monthly TDIS meetings|Bi-monthly TDIS meetings]]
  
[[TDIS Bi-monthly meeting, 2019 December 3|previous meeting]]  <<  >> [[TDIS Bi-monthly meeting, 2019 February 11 |following meeting]]
+
[[TDIS Bi-monthly meeting, 2020 January 14 |previous meeting]]  <<  >> [[TDIS Bi-monthly meeting, 2020 February 25 |following meeting]]
  
 
==Agenda==
 
==Agenda==
Thia kindly requested updates on:
+
Thia kindly requested status/updates on:
- simulations - Rachel, Carlos
+
* simulations - Rachel, [[Media:C.Ayerbe-20190211.pdf|Carlos]]
- tracking - Steve, Arun
+
* tracking - Steve, Arun
- target - Dipangkar
+
* target - Dipangkar
- GEM/streaming DAQ - Ed, Eric P.
+
* GEM/streaming DAQ - [https://hallaweb.jlab.org/wiki/images/8/86/SAMPA_Test_Stand_Overview.pdf Ed], Eric P.
- mTPC - Nilanga, Kondo
+
* mTPC - Nilanga, Kondo
- LAC refurbishment - Dipangkar, Simona
+
* LAC refurbishment - Dipangkar, Simona
- SAMPA chips - Sao Paulo, want to give an update?
+
* SAMPA chips - Sao Paulo, want to give an update?
- Cerenkov modifications - Andrew, Eric F. any news/thoughts?
+
* Cerenkov modifications - Andrew, Eric F. any news/thoughts?
 +
 
 +
==Minutes==
 +
 
 +
Attendees: Bogdan, Dipangkar, Jan Bernauer (Welcome), Marco B. Nilanga, Paul, Steve, Thia, Arun, Carlos, Ed, Eric F.
 +
 
 +
*Simulations updates/discussion:
 +
**Carlos: g4sbs part about mTPC will be reorgainzed; almost has all the interesting background processes (some been provided as structure functions only, not cross sections), now need to include them in g4sbs;
 +
**Arun/Steve: been busy (with Hall C activities) but will be able to resume shortly;
 +
**Rachel: will wrap around conical chamber wall study + will focus on estimate trigger/electron rates;
 +
Discussions will be made offline about when G4 simulations, digitization and tracking will need to come together.
 +
 
 +
*Target (Dipangkar): Target bust at 80 psi absolute = ~5.5atm (NB: we want to run at 4 atm~60psi), /but/ there was a flaw in the gluing of the target tube to one flange, which is where the target busted; will try again with flawless gluing + will test lower pressure values before testing 80 psi.
 +
 
 +
*Electronics updates/discussions:
 +
**Ed: Progress (see document) currently at step (C); will probably use SAMPA in non-continuous mode (triggering);
 +
**Marco: Infos about newer chip: shaping time can be configured to 80 or 160 ns;
 +
Discussions about triggering mode: trigger rates are (roughly) estimated about 20kHz which for the SAMPA chip is low; number of samples recorded after trigger is programmable.
 +
 
 +
*mTPC prototype (Nilanga): will be delayed + will need input from simulation team (number of pads, conical wall, etc);
 +
 
 +
*LAC (Dipangkar): there was a leak in the LAC (a light leak I assume); Students are available to test it, but Simona will need to train them (which she might be able to do soon).
 +
 
 +
*RICH (Eric F.): nothing new; will need to dig up pion rejection rates for LAC and evaluate RICH performance requirements (which will determine the necessity to use a light gas and extend the RICH snout or to use a heavier gas);
 +
 
 +
Closing remarks:
 +
*Dedicated TDIS meeting (one big afternoon on March 19th) before SBS meeting in March (20th-21st) - overlap iwth EIC meeting which is unfortunate.
 +
*Newcomer: Jan Bernauer (assistant prof at SBU): interested in joining TDIS, and particularly streaming readout, analysis (pending on obtaining research grant).
  
 
==Organizational details==
 
==Organizational details==

Latest revision as of 10:01, 9 March 2020

Back to Tagged DIS run group >> Bi-monthly TDIS meetings

previous meeting << >> following meeting

Agenda

Thia kindly requested status/updates on:

  • simulations - Rachel, Carlos
  • tracking - Steve, Arun
  • target - Dipangkar
  • GEM/streaming DAQ - Ed, Eric P.
  • mTPC - Nilanga, Kondo
  • LAC refurbishment - Dipangkar, Simona
  • SAMPA chips - Sao Paulo, want to give an update?
  • Cerenkov modifications - Andrew, Eric F. any news/thoughts?

Minutes

Attendees: Bogdan, Dipangkar, Jan Bernauer (Welcome), Marco B. Nilanga, Paul, Steve, Thia, Arun, Carlos, Ed, Eric F.

  • Simulations updates/discussion:
    • Carlos: g4sbs part about mTPC will be reorgainzed; almost has all the interesting background processes (some been provided as structure functions only, not cross sections), now need to include them in g4sbs;
    • Arun/Steve: been busy (with Hall C activities) but will be able to resume shortly;
    • Rachel: will wrap around conical chamber wall study + will focus on estimate trigger/electron rates;

Discussions will be made offline about when G4 simulations, digitization and tracking will need to come together.

  • Target (Dipangkar): Target bust at 80 psi absolute = ~5.5atm (NB: we want to run at 4 atm~60psi), /but/ there was a flaw in the gluing of the target tube to one flange, which is where the target busted; will try again with flawless gluing + will test lower pressure values before testing 80 psi.
  • Electronics updates/discussions:
    • Ed: Progress (see document) currently at step (C); will probably use SAMPA in non-continuous mode (triggering);
    • Marco: Infos about newer chip: shaping time can be configured to 80 or 160 ns;

Discussions about triggering mode: trigger rates are (roughly) estimated about 20kHz which for the SAMPA chip is low; number of samples recorded after trigger is programmable.

  • mTPC prototype (Nilanga): will be delayed + will need input from simulation team (number of pads, conical wall, etc);
  • LAC (Dipangkar): there was a leak in the LAC (a light leak I assume); Students are available to test it, but Simona will need to train them (which she might be able to do soon).
  • RICH (Eric F.): nothing new; will need to dig up pion rejection rates for LAC and evaluate RICH performance requirements (which will determine the necessity to use a light gas and extend the RICH snout or to use a heavier gas);

Closing remarks:

  • Dedicated TDIS meeting (one big afternoon on March 19th) before SBS meeting in March (20th-21st) - overlap iwth EIC meeting which is unfortunate.
  • Newcomer: Jan Bernauer (assistant prof at SBU): interested in joining TDIS, and particularly streaming readout, analysis (pending on obtaining research grant).

Organizational details

11:00 AM, JLab meeting room: TED 2561A
To join the Meeting:
https://bluejeans.com/550335940
To join via Room System:
Video Conferencing System: bjn.vc -or-199.48.152.152
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To join via phone :
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    (see all numbers - http://bluejeans.com/numbers)
  2. Enter Conference ID : 550335940