Runlist
Run |
Conditions
|
6588 |
Run GEM detector in Hall at V_gem= 2650 V_cath=2950 Shutter Open? Signal on ADC5 at about 1000 channels, CFD threshold at 84 mV, 10 Hz clock in scaler channel 5, rate was 7 Hz
|
6589 |
same as run 6588 except, V_gem = V_cath = 2650 and lowered CFD threshold to 64 mV because there were no triggers, rate was 2 kHz, noise was at 1000 channels as well, a lot of pileup but histogram seems representative of noise. increase GEM gain
|
6593 |
Run GEM detector in Hall at V_gem= 2700 V_cath=3150, CFD threshold at 88 mV, 10 Hz clock in scaler channel 5, rate was 27 Hz,
|
TGEMS#GEM_fission_chamber_tests