Difference between revisions of "Fall 2019 Commissioning Meetings"

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(Tuesday, December 17)
(Tuesday, December 17)
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** Standard halld_recon LUT: [https://logbooks.jlab.org/entry/3755056]
 
** Standard halld_recon LUT: [https://logbooks.jlab.org/entry/3755056]
 
** FastDIRC: [https://logbooks.jlab.org/entry/3753419]
 
** FastDIRC: [https://logbooks.jlab.org/entry/3753419]
 +
** LED analyses north box [https://halldweb.jlab.org/wiki/images/2/2e/17DecGluex.pdf]
 
* Total statistics around ~6 billion triggers so far, should get close to statistics we had last Spring (~10 billion total)
 
* Total statistics around ~6 billion triggers so far, should get close to statistics we had last Spring (~10 billion total)
 
* Upcoming plans:
 
* Upcoming plans:

Revision as of 12:03, 17 December 2019

Meeting Information

GlueX DIRC Meeting
Tuesdays and Thursdays, December 3-19
10:00 am, EDT
Hall D Counting House

Connection Using Bluejeans

  1. To join via Polycom room system go to the IP Address: 199.48.152.152 (bjn.vc) and enter the meeting ID: 846453895.
  2. To join via a Web Browser, go to the page [1] https://bluejeans.com/846453895 .
  3. To join via phone, use one of the following numbers and the Conference ID: 846453895
    • US or Canada: +1 408 740 7256 or
    • US or Canada: +1 888 240 2560
  4. More information on connecting to bluejeans is available.


Useful Links:

Tuesday, December 17

  • Initial data analyses (early runs 70817-70849):
    • Standard halld_recon LUT: [2]
    • FastDIRC: [3]
    • LED analyses north box [4]
  • Total statistics around ~6 billion triggers so far, should get close to statistics we had last Spring (~10 billion total)
  • Upcoming plans:
    • Remaining GEM data with focused FCAL trigger
    • Additional DIRC threshold/gain/HV settings:
    • High rate tests: paths to eliminate DIRC as bottleneck

Thursday, December 12

  • Initial data (70817-70849) reconstruction complete:
    • REST, histogram and tree files appearing at: /volatile/halld/home/gxproj7/RunPeriod-2019-11/dirc_monitoring/ver00
  • Waiting for runs 70937+ to be transferred to the /cache/ disk
  • VERY preliminary first look with FastDIRC
  • Upcoming plans:
    • More GEM data with focused FCAL trigger
    • High rate trigger/DAQ tests, including DIRC (Sasha)
    • CPP test, 1 hr (David)

Tuesday, December 10

  • First field-on data Friday evening: Run 70817+
    • Initial issues with timing now resolved and data processing some plots
    • Initial data reconstruction underway:
      • REST, histogram and tree files appearing at: /volatile/halld/home/gxproj7/RunPeriod-2019-11/dirc_monitoring/ver00
  • Unfortunate data loss before accelerator vacuum issue: Run 70850-70895: https://logbooks.jlab.org/entry/3750309
  • LED Analysis: (Ahmed/Bill/Andrew)
  • Upcoming plans:
    • When beam is back continue with nominal conditions: Threshold = pedestal + 100, equalized gains, HV = 1000 V
    • Dedicated runs with GEM detector included with low trigger rate

Thursday, December 5

  • Collected straight track data in "beam left" position: see correlations with TRD wire chamber and GEM SRS (APV) modules
    • A couple runs with DIRC included for initial tests (70720 and 70721)
  • LED Analysis: (Ahmed/Bill)
  • Upcoming plans:
    • Today/tonight: Straight track data in center and right positions by Friday morning.
    • Friday: Ramp solenoid and setup for DIRC commissioning
    • Weekend: DIRC commissioning with full solenoid field!

Tuesday, December 3

  • Status update from the Hall
  • Plans for straight track data