December 14, 2016 Calibration

GlueX Calibration Meeting
Wednesday, December 14, 2016
11:00 am, EST
JLab: CEBAF Center, F326

Communication Information

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Slides

Talks can be deposited in the directory /group/halld/www/halldweb/html/talks/2016 on the JLab CUE. This directory is accessible from the web at https://halldweb.jlab.org/talks/2016/ .

Calibration Tasks

1. Spring 2016 Recon Checklist
2. Mcsmear updates
3. Data Validation
4. GlueX Detector Performance Document

Upcoming Calibrations

• Add timing information to FCAL clustering/inner ring calibrations? (Adesh/Matt S.)
• BCAL TDC calibrations (Andrei)
• TAGH alignment (Nathan)
• Tagger energy map (Richard J.?)
• TOF alignment (Beni/Simon)

Agenda

1. Announcements
2. Run Planning
   • Firmware Updates
   • Calibrations to run
   • HV scans
3. Calibration Updates
4. Alignment
5. Simulations
   • sim1.2 progress
     • Test job status
     • mcsmear status - mcsmear 20161214
6. AOB

Minutes

Attending: Sean (NU); Simon, Lubomir, Mike S., Alex A., Mark D., Thomas, Mark I. (JLab);

1. Announcements
   • Short meeting, beam being tuned to the tagger hall.
2. Run Planning
   • Firmware Updates
     • Sean reported that using the cosmic data over the weekend, the f250 firmware looks well understood and tests with beam data are next.
     • Naomi reported that Cody updated the the CDC & FDC crates with a minor bug fix
   • Calibrations to run
     • Sean reported that the offline jobs are ready, automated calibrations won't be tested during the run, since we'll only have just enough time to recalibrate the detector.
   • HV scans are planned for the CDC, TOF, and TAGH. Personnel are ready to analyze this data.
3. Calibration Updates
   • BCAL - Sean will provide an updated SQLite CCDB file to Regina to help with development of timing corrections in sim-recon.
   • SC - Mahmoud compared some simulations
4. Alignment
   • Mike has been working on the cathode alignment and has finally found one of the bugs in sim-recon with how the alignment parameters are applied, and now gets consistent residuals with Lubomir's standalone code.
   • After this, all other alignment needs to be revisited, should have a big impact in the next reconstruction launch.
   • Lubomir has some code that compares his reconstruction with sim-recon on an event-by-event and hit-by-hit level basis, which was very helpful in solving these problems. He is currently working on fixing some finer problems, such as the location dependence of reconstructed hits.
5. Simulations
   • sim1.2 progress
     • Test job status
     • mcsmear status - mcsmear 20161214
6. AOB