Difference between revisions of "GEM Fission IAC 11082013"

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| 6594|| V_gem= 2750 V_cath=3150, CFD threshold at 88 mV, 10 Hz clock in scaler channel 5, rate was 27 Hz,  
 
| 6594|| V_gem= 2750 V_cath=3150, CFD threshold at 88 mV, 10 Hz clock in scaler channel 5, rate was 27 Hz,  
 
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| 6595|| Shutter '''Closed''' now V_gem= 2750 V_cath=3150, CFD threshold at 88 mV, 10 Hz clock in scaler channel 5, rate was 27 Hz,  
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| 6595|| Shutter '''Closed''' now V_gem= 2750 V_cath=3150, CFD threshold at 88 mV, 10 Hz clock in scaler channel 5, rate was 27 Hz, 33 min 29 sec,  
 
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| 6596|| Shutter '''Open''' now V_gem= 2800 V_cath=3100, CFD threshold at 88 mV, 10 Hz clock in scaler channel 5, rate was 27 Hz,  
 
| 6596|| Shutter '''Open''' now V_gem= 2800 V_cath=3100, CFD threshold at 88 mV, 10 Hz clock in scaler channel 5, rate was 27 Hz,  

Revision as of 17:24, 8 November 2013

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, R6588-6593 cmpare.pngR6593 scopepic.png
6594 V_gem= 2750 V_cath=3150, CFD threshold at 88 mV, 10 Hz clock in scaler channel 5, rate was 27 Hz,
6595 Shutter Closed now V_gem= 2750 V_cath=3150, CFD threshold at 88 mV, 10 Hz clock in scaler channel 5, rate was 27 Hz, 33 min 29 sec,
6596 Shutter Open now V_gem= 2800 V_cath=3100, CFD threshold at 88 mV, 10 Hz clock in scaler channel 5, rate was 27 Hz,


TGEMS#GEM_fission_chamber_tests