IAC runs as the electron beam in use
steps to setup the veto:
- Choosing an input to the pulse generator with earliest pulse in time. (usually the gun)
- The output of the pulse generator should have a width that contains all the pulses that have to have Veto.
- delay so we one pulse remains.
- observing any change in the accelerator pulse frequency, since it will affect the delay of the pulse generator.
The main point of setting up the TDC is to observe the output of each channel (GEM or PMT) and determine the time period between each pulse the common start or common stop pulse. (TDC records the pulses that occur within 1100 ns before or after the trigger pulse.)
ADC is connected,
Beam On: run 5496 as the detector is on 13:31:11 13:47:18 run 5497 as the detector is off 13:52:51
|Run Number||Beam||Start Time||End time||Notes|
|5496||on||13:31:11||13:47:18||Detector is in operating voltage.|
|5497||on||13:52: 51||Detector is in off mode|
|5515||off||5:59: 46||6:27:43||Detector is in operating voltage.|
|5516||off||6:29:32||06:38:13||Detector is in off mode|
|5517||off||6:43:42||06:50:05||shutter is close|
|5518||off||06:55:59||07:06:57||Detector is in operating voltage.|
|5519||on||07:56:53||Detector is in operating voltage.|
|5520,21,22||on||09:38:36||Detector is in operating voltage.|
|5523||on||9:51:00||10:13:38||Detector is in operating voltage.|
|5524||on||10:14:35||PMT is added to ADC ch#14|
|5526||on||11:51:35||12:02:49||PMT TDC ch#0 GEM ch#2 ADC ch# 12 GEM Ch#14 PMT|
All the previous runs has a positive input to the ADC.