Difference between revisions of "Π polarizability Meeting Mar 2, 2022"

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(Preliminary Agenda)
(Minutes)
 
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== Action Items ==
 
== Action Items ==
  
# Review CPP test run for rates (Ilya) and check with Sasha on steps for "replay"
+
# Check with Sasha on steps for "replay"
  
 
== Preliminary Agenda  ==
 
== Preliminary Agenda  ==
Line 58: Line 58:
 
# Action Items
 
# Action Items
 
# [[media:CPP_Voltage_Controls.pdf | CPP voltage controls]] (Hovanes)
 
# [[media:CPP_Voltage_Controls.pdf | CPP voltage controls]] (Hovanes)
 +
# Plan for diamond simulations (Richard)
 
# Software/Calibration
 
# Software/Calibration
 
#* Simulations
 
#* Simulations
# Plan for diamond simulations (Richard)
 
 
# MWPC Testing  
 
# MWPC Testing  
 
#* Move to Hall D
 
#* Move to Hall D
Line 72: Line 72:
  
 
== Minutes ==
 
== Minutes ==
''Attending:
+
''Attending: Andrew, Albert, Alex, Beni, David L., Elton, Ilya, Nikhil, Rory, Sergey, Simon
 +
 
 +
# Previous CPP meeting: [[%CE%A0_polarizability_Meeting_Feb_23,_2022|Feb 23, 2022]]
 +
# Previous CPP Software meeting: [[Π polarizability Software Meeting Feb 17, 2022]]
 +
# Announcements
 +
#* Document on toy study of MVA pi/mu systematics posted as [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5506 GlueX-doc-5506]
 +
# Action Items
 +
#* Elton and Beni briefly talked to Sasha about the trigger work. The task is on his list. We will need to start pressing once the electronics is installed and operational
 +
# [[media:CPP_Voltage_Controls.pdf | CPP voltage controls]] (Hovanes)
 +
#* Automation is for voltages only.
 +
#* Standard HV and LV GUIs have been produced for both the FMWPC and the CTOF. Hovanes demonstrated their capabilities, which mirror other Hall D systems.
 +
#* Parameters and settings will need to be populated (voltage settings, ramp rates, alarm settings, etc). The CPP experiment can do most of this. Hovanes still needs to request archiving of EPICs variables.
 +
#* Beni: Does the LV settings refer to the sensor or terminal voltage? Hovanes believes there is a sense voltage, but we need to check with Chris.
 +
#* Elton: What about CTOF scalers? Hovanes: At the moment they are not setup, but hooks are available. A database needs to be updated with the assignment tables. Beni will work with Justin to create the tables. For the CTOF we would have scalers from the FADCs and the TDCs.
 +
# Plan for diamonds (Hovanes)
 +
#* Will need to scan both JD70-103 and JD70-107 and determine the best one.
 +
#* Hovanes will need the calibration database updated with the microscope assignments so that appropriate monitoring histograms can be updated.
 +
# Software/Calibration
 +
#* Simulations
 +
#* Simon: Made a modification to the event spec for the FMWPCs, which was requested by Richard. The change needs to be propagated through all the software. It is in process.
 +
#* David: No meeting last week due to the collaboration meeting. Will meet tomorrow to go over any software issues.
 +
#* Andrew: Got help sorting out the production queue in the standard MCWrapper submission and it is now working.
 +
# TAC discussion
 +
#* The CCAL will not be available for the CPP run. We will use the TAC
 +
#* Hovanes: The TAC was reworked and annealed a few years ago. Since then it has not seen much direct beam and should be operational.
 +
#* Rory:  The requirements on flux measurement is comparable to PRIMEX. We will likely normalize the cross section to the QED Bethe-Heither process, but still want an absolute flux measurement.
 +
#* Sasha has taken the most recent "TAC" with the CCAL. He also took some data with the TAC and we should find out from him whether work on the TAC is needed.
 +
# MWPC Testing
 +
#* Move to Hall D
 +
#* [https://logbooks.jlab.org/book/hdfmwpc FMWPC Log Book]
 +
#* Elton went over photos of the installation in the hall; the mechanical is complete and electronics/DAQ is next.
 +
#* Hovanes noticed that the labeling of the gas lines is different than what he is using. The "standard" labeling should be planes 1-6. We will add labels to the gas panel.
 +
#* [https://halldweb.jlab.org/talks/2022/CPP_NPP/ halldweb/talks/CPP_NPP]
 +
#* All heavy lifting and power work is complete.
 +
#* Beni: DAQ/electronics is back on after the scheduled power outage yesterday. Taking data for the CDC AI project. Will be completed in 2 weeks and the CDC electronics can be moved to the forward carriage for the MWPCs.
 +
#* Sergey: the ROC for the MWPCs will be FMWPC1. The fan tray also needs to be renamed. Hovanes will do this when the crate is moved from the CDC.
 +
# [[CPP and NPP Experiment Configuration]]
 +
#* Elton: Everyone is encouraged to use this wiki page for the latest experiment information, so that it is all in one place and becomes a reliable source.
 +
# Beam (Hovanes)
 +
#* There was some discussion about the stability of the beam and use of the 5 mm vs 3.4 mm collimators. Hovanes noted that moving from one to the other requires moving the active collimator.
 +
#* Hovanes: The U. of Regina has developed a new profiler based on quartz crystals for increased radiation hardness. It might be available this summer and could be in the beam all the time. However, we should probably not rely on it due to scheduling and performance uncertainties.
 +
# CPP-NPP trigger
 +
# DAQ and Electronic Setup (Sergey and Beni)
 +
# Other business
 +
# Next meeting
 +
#* Mark  will run the next meeting.

Latest revision as of 17:34, 2 March 2022

Meeting Time And Location

09:30 EST (JLab time) Weekly Meeting

REMOTE during Covid-19

Connecting

Join ZoomGov Meeting
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Meeting ID: 160 862 8791
Passcode: CPP

Elton Smith is inviting you to a scheduled ZoomGov meeting.

Topic: CPP Weekly Meeting
Time: This is a recurring meeting Meet anytime

Join ZoomGov Meeting
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Passcode: CPP
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Passcode: 112160


Action Items

  1. Check with Sasha on steps for "replay"

Preliminary Agenda

  1. Previous CPP meeting: Feb 23, 2022
  2. Previous CPP Software meeting: Π polarizability Software Meeting Feb 17, 2022
  3. Announcements
  4. Action Items
  5. CPP voltage controls (Hovanes)
  6. Plan for diamond simulations (Richard)
  7. Software/Calibration
    • Simulations
  8. MWPC Testing
  9. CPP and NPP Experiment Configuration
  10. CPP-NPP trigger
  11. DAQ and Electronic Setup (Sergey and Beni)
  12. Other business
  13. Next meeting

Minutes

Attending: Andrew, Albert, Alex, Beni, David L., Elton, Ilya, Nikhil, Rory, Sergey, Simon

  1. Previous CPP meeting: Feb 23, 2022
  2. Previous CPP Software meeting: Π polarizability Software Meeting Feb 17, 2022
  3. Announcements
    • Document on toy study of MVA pi/mu systematics posted as GlueX-doc-5506
  4. Action Items
    • Elton and Beni briefly talked to Sasha about the trigger work. The task is on his list. We will need to start pressing once the electronics is installed and operational
  5. CPP voltage controls (Hovanes)
    • Automation is for voltages only.
    • Standard HV and LV GUIs have been produced for both the FMWPC and the CTOF. Hovanes demonstrated their capabilities, which mirror other Hall D systems.
    • Parameters and settings will need to be populated (voltage settings, ramp rates, alarm settings, etc). The CPP experiment can do most of this. Hovanes still needs to request archiving of EPICs variables.
    • Beni: Does the LV settings refer to the sensor or terminal voltage? Hovanes believes there is a sense voltage, but we need to check with Chris.
    • Elton: What about CTOF scalers? Hovanes: At the moment they are not setup, but hooks are available. A database needs to be updated with the assignment tables. Beni will work with Justin to create the tables. For the CTOF we would have scalers from the FADCs and the TDCs.
  6. Plan for diamonds (Hovanes)
    • Will need to scan both JD70-103 and JD70-107 and determine the best one.
    • Hovanes will need the calibration database updated with the microscope assignments so that appropriate monitoring histograms can be updated.
  7. Software/Calibration
    • Simulations
    • Simon: Made a modification to the event spec for the FMWPCs, which was requested by Richard. The change needs to be propagated through all the software. It is in process.
    • David: No meeting last week due to the collaboration meeting. Will meet tomorrow to go over any software issues.
    • Andrew: Got help sorting out the production queue in the standard MCWrapper submission and it is now working.
  8. TAC discussion
    • The CCAL will not be available for the CPP run. We will use the TAC
    • Hovanes: The TAC was reworked and annealed a few years ago. Since then it has not seen much direct beam and should be operational.
    • Rory: The requirements on flux measurement is comparable to PRIMEX. We will likely normalize the cross section to the QED Bethe-Heither process, but still want an absolute flux measurement.
    • Sasha has taken the most recent "TAC" with the CCAL. He also took some data with the TAC and we should find out from him whether work on the TAC is needed.
  9. MWPC Testing
    • Move to Hall D
    • FMWPC Log Book
    • Elton went over photos of the installation in the hall; the mechanical is complete and electronics/DAQ is next.
    • Hovanes noticed that the labeling of the gas lines is different than what he is using. The "standard" labeling should be planes 1-6. We will add labels to the gas panel.
    • halldweb/talks/CPP_NPP
    • All heavy lifting and power work is complete.
    • Beni: DAQ/electronics is back on after the scheduled power outage yesterday. Taking data for the CDC AI project. Will be completed in 2 weeks and the CDC electronics can be moved to the forward carriage for the MWPCs.
    • Sergey: the ROC for the MWPCs will be FMWPC1. The fan tray also needs to be renamed. Hovanes will do this when the crate is moved from the CDC.
  10. CPP and NPP Experiment Configuration
    • Elton: Everyone is encouraged to use this wiki page for the latest experiment information, so that it is all in one place and becomes a reliable source.
  11. Beam (Hovanes)
    • There was some discussion about the stability of the beam and use of the 5 mm vs 3.4 mm collimators. Hovanes noted that moving from one to the other requires moving the active collimator.
    • Hovanes: The U. of Regina has developed a new profiler based on quartz crystals for increased radiation hardness. It might be available this summer and could be in the beam all the time. However, we should probably not rely on it due to scheduling and performance uncertainties.
  12. CPP-NPP trigger
  13. DAQ and Electronic Setup (Sergey and Beni)
  14. Other business
  15. Next meeting
    • Mark will run the next meeting.