Difference between revisions of "Wednesday, March 11, 2020, 2:00 pm EDT"
From Hall A Wiki
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* Online analysis results | * Online analysis results | ||
* Polarization vs. time | * Polarization vs. time | ||
+ | |||
+ | |||
+ | ==Minutes== | ||
+ | |||
+ | Mark, Dave, Alex, Cip, Iris, JC, Kent, Don, Jinlong, | ||
+ | |||
+ | # General | ||
+ | #* Dave shows polarization versus time for Hall C. Nice! | ||
+ | #** There are a number of inconsistencies, Hall C Moller measurements requires a different launch angle and linac imbalance to agree. | ||
+ | #Laser Systematic checks | ||
+ | #* Dave will look at a 10 degree square in HWP-QWP to find a setting to use that doesn't have too big a RRPD signal. | ||
+ | # Photon detector | ||
+ | ## Issues with low energy part of the spectrum. Is this due to changes in discriminator-trigger path. Can we mitigate this by using the photon signal in the electron detector DAQ. | ||
+ | ## LED run didn't work. Various things can be tried. | ||
+ | ## Jaws wide open position seems to clip a bit at the top (about the same amount as the nominal clips at the bottom.) | ||
+ | ## Finger scans. | ||
+ | ### Inconclusive at the moment. New scans will be done. |
Latest revision as of 14:00, 11 March 2020
Back to Main Compton Page >> Compton Meetings
*********BLUEJEANS CALL-IN INSTRUCTIONS********* ---------------------------------------------------- 1. Dial Toll-Free Number: 1-888-240-2560 (U.S. & Canada) 2. International participants dial: Toll Number: 1-408-740-7256 3. Enter meeting ID:140287970 Desktop sharing: https://bluejeans.com/140287970
Contents
Agenda
Meeting room = Counting House Meeting Room
General
- Systematic checks - scheduling
Electron detector
- QWAD installation/issues
Laser
Photon Detector
- Spectrum fitting for collimator offset (low threshold, high threshold)
- Strange feature in recent full gain runs
- LED run
Analysis
- Online analysis results
- Polarization vs. time
Minutes
Mark, Dave, Alex, Cip, Iris, JC, Kent, Don, Jinlong,
- General
- Dave shows polarization versus time for Hall C. Nice!
- There are a number of inconsistencies, Hall C Moller measurements requires a different launch angle and linac imbalance to agree.
- Dave shows polarization versus time for Hall C. Nice!
- Laser Systematic checks
- Dave will look at a 10 degree square in HWP-QWP to find a setting to use that doesn't have too big a RRPD signal.
- Photon detector
- Issues with low energy part of the spectrum. Is this due to changes in discriminator-trigger path. Can we mitigate this by using the photon signal in the electron detector DAQ.
- LED run didn't work. Various things can be tried.
- Jaws wide open position seems to clip a bit at the top (about the same amount as the nominal clips at the bottom.)
- Finger scans.
- Inconclusive at the moment. New scans will be done.