Difference between revisions of "Π polarizability Meeting Nov 3, 2021"

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(→‎Preliminary Agenda)
(→‎Minutes)
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== Minutes ==
 
== Minutes ==
−
'' Attending:
+
'' Attending: Alex, Andrew, Beni, David H., David L., Elton, Ilya, Mark, Nikhil, Rory, Simon
−
 
+
  
 
# Previous CPP meeting: [[π polarizability Meeting Oct 27, 2021|Oct 27, 2021]]
 
# Previous CPP meeting: [[π polarizability Meeting Oct 27, 2021|Oct 27, 2021]]
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# Software/Calibration for CPP (David, Alex and Sean)
 
# Software/Calibration for CPP (David, Alex and Sean)
 
#* [https://github.com/JeffersonLab/halld_recon/tree/cpp_recon_oct21 cpp_recon_oct21] branch with clustering algorithm (Alex)
 
#* [https://github.com/JeffersonLab/halld_recon/tree/cpp_recon_oct21 cpp_recon_oct21] branch with clustering algorithm (Alex)
−
# AI for Experimental Controls testing during CPP
+
#* Alex showed output of hd_dump from EEL test data. Code is in a branch.
 +
#* Currently have a primitive algorithm to group adjacent wires into "clusters"
 +
#* Hit object: needs an "x" position and orientation (vertical or horizontal). Note that distance between wires is 0.4" (not 1 cm)
 +
#* Cluster object: add number of wires included into cluster.
 +
#* Elton: Should there be hooks included to rotate chambers relative to "nominal". After discussion, it seemed that individual chambers might be able to be rotated in the x-y plane without adjusting individual wires. This would be specified in the <xml> file. Simon will check.
 +
# AI for Experimental Controls testing during CPP (Dave)
 +
#* David has extracted relevant code from Andrew's plugin to produce a simpler output. The code will be more self-contained and in one location. David will work on this this week.
 +
#* Concern that a number of hits for pions is less than for muons (on average) in the simulation.
 +
#* Rory: This may be what is expected for the configuration we have because of the absorption of pions. So the simulation may be ok, but we want to scrutinize it before spending much effort on the AI to separate pions and muons
 +
#* Dave: Also need more realistic simulations of pion and muon pairs. Andrew will check with Albert about supplying realistic configurations.
 
# MWPC Testing  
 
# MWPC Testing  
 
#* [https://logbooks.jlab.org/book/hdfmwpc FMWPC Log Book]
 
#* [https://logbooks.jlab.org/book/hdfmwpc FMWPC Log Book]
 +
#* Denethor seems to operate well with a baseline threshold=0 in the retest data. (Elton will post data shortly)
 +
#* Ilya has taken more data with Arwen, but it looks like the chamber information is missing. Elton will be in the lab in the afternoon and will check.
 +
#* Rory: The HV GUI does not update voltage/current measurements. We need to use the "Powermeter" pull-down menu.
 
# Slow Controls (Beni)
 
# Slow Controls (Beni)
 
# hdgeant4 updates (Mark)
 
# hdgeant4 updates (Mark)

Revision as of 11:50, 3 November 2021

Meeting Time And Location

09:30 EST (JLab time) Weekly Meeting

REMOTE during Covid-19

Connecting

You can connect using BlueJeans Video conferencing (ID: 949 429 419). (Click "Expand" to the right for details -->):

  1. Make sure you have created a BlueJeans account via your JLab CUE account using this link:

  2. Meeting ID: 949 429 419
    • (you may need to type this in, depending how you connect)

  3. If connecting via Web Browser: click this link (no passcode is needed):

  4. If connecting via iOS or Android App:
    • Use your JLab e-mail address to log in and then enter the meeting ID given above to join the meeting

  5. If connecting via Phone: Dial one of the following numbers and then enter the meeting ID above and hit "#" or "##"

  6. If connecting via Polycom unit:
    • Dial 199.48.152.152 or bjn.vc
    • Enter meeting ID above



Action Items

  1. Develop a plan for beam TOF trigger tests (Ilya)
  2. Finalize configuration of MWPC orientations/installation

Preliminary Agenda

  1. Previous CPP meeting: Oct 27, 2021
  2. Announcements
  3. Action Items
    • TOF trigger (Ilya)
  4. Software/Calibration for CPP (David, Alex and Sean)
  5. AI for Experimental Controls testing during CPP
  6. MWPC Testing
  7. Slow Controls (Beni)
  8. hdgeant4 updates (Mark)
  9. TOF Trigger (Simon)
  10. GlueX Data Analysis
  11. CPP Simulations
  12. PID + AI
  13. Other business
  14. Next meeting

Minutes

Attending: Alex, Andrew, Beni, David H., David L., Elton, Ilya, Mark, Nikhil, Rory, Simon

  1. Previous CPP meeting: Oct 27, 2021
  2. Announcements
  3. Action Items
  4. Software/Calibration for CPP (David, Alex and Sean)
    • cpp_recon_oct21 branch with clustering algorithm (Alex)
    • Alex showed output of hd_dump from EEL test data. Code is in a branch.
    • Currently have a primitive algorithm to group adjacent wires into "clusters"
    • Hit object: needs an "x" position and orientation (vertical or horizontal). Note that distance between wires is 0.4" (not 1 cm)
    • Cluster object: add number of wires included into cluster.
    • Elton: Should there be hooks included to rotate chambers relative to "nominal". After discussion, it seemed that individual chambers might be able to be rotated in the x-y plane without adjusting individual wires. This would be specified in the <xml> file. Simon will check.
  5. AI for Experimental Controls testing during CPP (Dave)
    • David has extracted relevant code from Andrew's plugin to produce a simpler output. The code will be more self-contained and in one location. David will work on this this week.
    • Concern that a number of hits for pions is less than for muons (on average) in the simulation.
    • Rory: This may be what is expected for the configuration we have because of the absorption of pions. So the simulation may be ok, but we want to scrutinize it before spending much effort on the AI to separate pions and muons
    • Dave: Also need more realistic simulations of pion and muon pairs. Andrew will check with Albert about supplying realistic configurations.
  6. MWPC Testing
    • FMWPC Log Book
    • Denethor seems to operate well with a baseline threshold=0 in the retest data. (Elton will post data shortly)
    • Ilya has taken more data with Arwen, but it looks like the chamber information is missing. Elton will be in the lab in the afternoon and will check.
    • Rory: The HV GUI does not update voltage/current measurements. We need to use the "Powermeter" pull-down menu.
  7. Slow Controls (Beni)
  8. hdgeant4 updates (Mark)
  9. TOF Trigger (Simon)
  10. GlueX Data Analysis
  11. CPP Simulations
  12. PID + AI
  13. Other business
  14. Next meeting
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