Difference between revisions of "TDIS Bi-monthly meeting, 2021 February 23"

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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, 2021 February 2 |previous meeting]]  <<  >> [[TDIS Bi-monthly meeting, 2021 March 9 |following meeting]]
+
[[TDIS Bi-monthly meeting, 2021 February 2 |previous meeting]]  <<  >> [[TDIS Bi-monthly meeting, 2021 March 16 |following meeting]]
  
  
 
==Agenda==
 
==Agenda==
* all: any other business
+
* Rachel: status on mTPC digitization [[https://hallaweb.jlab.org/wiki/images/2/2a/Montgomery_TDISUpdate_230221.pdf]];
 +
* all: any other business;
  
 
==Minutes==
 
==Minutes==
  
 
Discussions about mTPC digitization:  
 
Discussions about mTPC digitization:  
SAMPA pulse actually slightly more complicated than APV pulse (APV assumes N=1):
+
SAMPA pulse actually slightly more complicated than APV pulse (APV pulse assumes N=1):
 +
f(t) = ((t-t0)/tau)^N exp(-N((t-t0)/tau))
  
  f(t) = ((t-t0)/tau)^N exp(-N((t-t0)/tau))
+
Questions/Comments from Nilanga:
 +
* from GEMs (solid, sbs), the microscopic details do not matter that much;
 +
* photons: some will hit copper instead of GEM foil. Photoproduced electrons have sizeable energies;
  
 +
Questions from Steve:
 +
* can we accomodate the pad size?
 +
* having a constant number of pad as function of radius can really help in the perspective of machine learning analysis.
 +
* Time for 1 million events? 1 h? (consistent with current sbsdig_lw speed) (need to define what is one event)
  
 +
Question from Ed:
 +
* Time of the sampling: when is the sampling started wrt the beginning of the pulse? needs to be randomized like GEMs.
  
  
 
Question from Ed to Salina:
 
Question from Ed to Salina:
 
Will she use the BNL FEC for the mTPC prototype?
 
Will she use the BNL FEC for the mTPC prototype?
question of connectors (15 bucks each but can only be bought in large quantities), could be sorted out by getting "free samples"?
+
question of connectors ($15 each but can only be bought in large quantities), could be sorted out by getting "free samples"?
 
Design of the card is needed to finalize the prototype design.
 
Design of the card is needed to finalize the prototype design.
 +
 +
 +
Side comment from Nilanga to Marco and Ed: Hall B considering CLAS12 upgrade and is interested in SAMPA.
  
 
==Organizational details==
 
==Organizational details==

Latest revision as of 18:21, 15 March 2021

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

previous meeting << >> following meeting


Agenda

  • Rachel: status on mTPC digitization [[1]];
  • all: any other business;

Minutes

Discussions about mTPC digitization: SAMPA pulse actually slightly more complicated than APV pulse (APV pulse assumes N=1):

f(t) = ((t-t0)/tau)^N exp(-N((t-t0)/tau))

Questions/Comments from Nilanga:

  • from GEMs (solid, sbs), the microscopic details do not matter that much;
  • photons: some will hit copper instead of GEM foil. Photoproduced electrons have sizeable energies;

Questions from Steve:

  • can we accomodate the pad size?
  • having a constant number of pad as function of radius can really help in the perspective of machine learning analysis.
  • Time for 1 million events? 1 h? (consistent with current sbsdig_lw speed) (need to define what is one event)

Question from Ed:

  • Time of the sampling: when is the sampling started wrt the beginning of the pulse? needs to be randomized like GEMs.


Question from Ed to Salina: Will she use the BNL FEC for the mTPC prototype? question of connectors ($15 each but can only be bought in large quantities), could be sorted out by getting "free samples"? Design of the card is needed to finalize the prototype design.


Side comment from Nilanga to Marco and Ed: Hall B considering CLAS12 upgrade and is interested in SAMPA.

Organizational details

11:00 AM *ONLINE ONLY*
To join the Meeting:
https://bluejeans.com/550335940
To join via Room System:
Video Conferencing System: bjn.vc -or-199.48.152.152
Meeting ID : 550335940
To join via phone :
  1. Dial:
    +1.408.740.7256 (United States)
    +1.888.240.2560 (US Toll Free)
    +1.408.317.9253 (Alternate number)
    (see all numbers - http://bluejeans.com/numbers)
  2. Enter Conference ID : 550335940