Difference between revisions of "GEM performance data graphs"
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|5265 || 1.63 || 6 level 6 || 17 || 14:24:31 06/07 || 17:52:16 06/07 || close || off || 10Hz [[File: r5265_17att_ortex6_6_shutterclose_sourceoff.png | 90px ]] || || || | |5265 || 1.63 || 6 level 6 || 17 || 14:24:31 06/07 || 17:52:16 06/07 || close || off || 10Hz [[File: r5265_17att_ortex6_6_shutterclose_sourceoff.png | 90px ]] || || || | ||
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− | |5266 || 1.63 || 6 level 6 || 17 || | + | |5266 || 1.63 || 6 level 6 || 17 || 18:02:41 06/07 || 14:22:56 06/07 || open || off || 10Hz [[File: r5266_17att_ortex6_6_shutteropen_sourceoff.png | 90px ]] || || || |
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Revision as of 23:57, 7 June 2013
Without a source
- With a source
Shutter Open (Source on - Source off)/Source on vs. discrimination level
The uncertainty is calculated as the following:
u=on v=off
Run List1 GEM, Cathode 2.6, 2.9kV
/home/daq/CODA/CODAreader/ROOT_V5.30/V775mV792/evio2nt -fr4685.dat > /dev/null
The voltage of the Cathode is 2.9 kV and of the GEMs is 2.6 kV.
The amplifier is on x6 level fine gain which will amplify the detector signal to 33.5 times (6.56+_ 0+_ V/196 +_ 0.6mV).
Run List2 GEM,Cathode 2.65,2.95kV
The voltage of the Cathode is 2.95 kV and of the GEMs is 2.65 kV.
Run List3 GEM,Cathode 2.7,3kV
- Calibration curve
,Measurements
The voltage of the Cathode is 3 kV and of the GEMs is 2.7 kV. Without any attenuation -85 mV was the initial voltage and its equivalent charge is 1.02 nC. According this value the charge below is calculated using
Run List 4 GEM,Cathode 2.75,3.05kV
Run List 5 GEM,Cathode 2.8,3.10kV
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