Difference between revisions of "AIOP Mar. 18, 2024"

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=== Agenda: ===
 
=== Agenda: ===
# [[AIOP Organization Meeting Sep. 1, 2023| Previous Meeting]]
+
# [[AIOP Mar. 4, 2024| Previous Meeting]]
 
#:
 
#:
 
# Announcements
 
# Announcements
Line 65: Line 65:
  
 
=== Minutes ===
 
=== Minutes ===
<!-- Attendees: James M., Chris K., Torri J., Thomas B., Jiawel G. -->
+
Attendees: James M., Naomi J., Malachi S., Torri J., Thomas B., Jiawei G.
 +
 
 +
* Naomi gave brief update on the 5-min lightning talk she gave at the recent Hall-D Polarized Target workshop
 +
** She noted Ken Livingston showed interest in the project. We should send him a link to the proposal.
 +
 
 +
* Still some access issues with Github Project. Patrick and Jaiwei need to be added to JeffersonLab organization. (David can do that)
 +
 
 +
* Torri showed [https://docs.google.com/presentation/d/1zdBw3Ed3sP9p1tl8uPvpETMc-WnDyKF62fOaS487qCM/edit?usp=sharing some slides] on preliminary data logging along with a few plots
 +
* James already had some extensive information in a number of files in JSON format
 +
* We discussed the nature of the NMR data that was collected.
 +
** It involves sweeping through a range of frequencies over a ~3min time period
 +
** Multiple passes are made and the average of the values at each frequency recorded to give an waveform
 +
* James explained some issues with RG-C data from CLAS12 due to coils being outside of the target instead of inside where they would normally put them.
 +
** The external coils make the NMR more sensitive to beam position. The beam itself was rastered so illuminated an area of the cup.
 +
** RG-C analysis of elastic events to measure the polarization is ongoing, but currently not in agreement with the NMR measurement
 +
** The elastic event method requires a lot of statistics and the final analysis just uses an average polarization for the entire run.
 +
** Silvia N. is a contact person for RG-C. Torri will contact her to ask about the status and open a dialog.
 +
 
 +
* We discussed extracting the NMR signal from the background. This will involve modeling the background as a function of time.
 +
** James has some files taken as pure background that can help with this purpose.
  
''TBD''
 
  
 
==== Action Items ====
 
==== Action Items ====
''TBD''
+
* Send link to proposal to Ken L. (David)
 +
* Contact Silvia/RG-C (Torri)

Latest revision as of 19:47, 19 March 2024

The current weekly meeting time is every other Monday at 13:00 US/Eastern

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Meeting ID: 160 515 9491
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Meeting URL: https://jlab-org.zoomgov.com/j/1605159491?pwd=ZnB0Vkp0SCtYZmRPWG1hRGVnQVprUT09&from=addon
Meeting ID: 160 515 9491
Passcode: 680042

AIOP - Polarized Target

Agenda:

  1. Previous Meeting
  2. Announcements
  3. Project Progress
  4. PIER Activities
    • Middle School Data Science Hackathon Workshop
    • HUGS mini-Workshop
  5. AOT



Minutes

Attendees: James M., Naomi J., Malachi S., Torri J., Thomas B., Jiawei G.

  • Naomi gave brief update on the 5-min lightning talk she gave at the recent Hall-D Polarized Target workshop
    • She noted Ken Livingston showed interest in the project. We should send him a link to the proposal.
  • Still some access issues with Github Project. Patrick and Jaiwei need to be added to JeffersonLab organization. (David can do that)
  • Torri showed some slides on preliminary data logging along with a few plots
  • James already had some extensive information in a number of files in JSON format
  • We discussed the nature of the NMR data that was collected.
    • It involves sweeping through a range of frequencies over a ~3min time period
    • Multiple passes are made and the average of the values at each frequency recorded to give an waveform
  • James explained some issues with RG-C data from CLAS12 due to coils being outside of the target instead of inside where they would normally put them.
    • The external coils make the NMR more sensitive to beam position. The beam itself was rastered so illuminated an area of the cup.
    • RG-C analysis of elastic events to measure the polarization is ongoing, but currently not in agreement with the NMR measurement
    • The elastic event method requires a lot of statistics and the final analysis just uses an average polarization for the entire run.
    • Silvia N. is a contact person for RG-C. Torri will contact her to ask about the status and open a dialog.
  • We discussed extracting the NMR signal from the background. This will involve modeling the background as a function of time.
    • James has some files taken as pure background that can help with this purpose.


Action Items

  • Send link to proposal to Ken L. (David)
  • Contact Silvia/RG-C (Torri)