Difference between revisions of "Compton Meeting, September 28, 2011"
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== Attendance == | == Attendance == | ||
| − | On site: Mark, Don, Wouter, Amrendra, Arthur, Vardan | + | * On site: Mark, Don, Wouter, Amrendra, Arthur, Vardan |
| − | Off site: Jeff, Kent | + | * Off site: Jeff, Kent |
== Minutes == | == Minutes == | ||
=== Laser === | === Laser === | ||
| − | # After much discussion | + | # After much discussion there are a few things to be checked. |
| + | ## look for saturation in the fADC in snapshots | ||
| + | ## take similar data using the TRIUMF VtoF | ||
=== Photon Detector === | === Photon Detector === | ||
| Line 35: | Line 37: | ||
=== Electron Detector === | === Electron Detector === | ||
| + | # A simple test with only 1 QWAD (1 plane) seems to show that the source can be seen. | ||
| + | |||
| + | ===DAQ=== | ||
| + | # Kent gives permission to fix the broken channel of snakehead. | ||
Revision as of 10:48, 28 September 2011
Agenda
Laser
- Cavity noise characteristics study
JLab VtoF and scaler appears to broaden the cavity power width significantly (comparing with fADC measurement of the same signal.)
If this latest width holds out then the new cavity width will be a negligible contribution to the photon detector width.
Photon Detector
- LED linearity system
- Detector
- Cooling system update
Electron Detector
- Source tests
https://qweak.jlab.org/elog/Electron+Detector/252
DAQ
- BPM/V2F issue
Attendance
- On site: Mark, Don, Wouter, Amrendra, Arthur, Vardan
- Off site: Jeff, Kent
Minutes
Laser
- After much discussion there are a few things to be checked.
- look for saturation in the fADC in snapshots
- take similar data using the TRIUMF VtoF
Photon Detector
- Have data with snapshots over the LED pulse. Data taken with varying LED intensity and the phototube so first linearity data now available.
- Detector cooling results looking good at 14 degrees C. Actual data to follow.
Electron Detector
- A simple test with only 1 QWAD (1 plane) seems to show that the source can be seen.
DAQ
- Kent gives permission to fix the broken channel of snakehead.
