QADC Analysis
The first test for the detector signal after installing U-233 is by using CAEN V792 Q-ADC (Analog charge to digital converter). The aim of this test is to test the shutter ability to help in distinguishing the emitted particles from U-233 source based on liberated charge from their ionization in gas.
 charge collected as the voltage is 2.60 2.90 kV for GEM and cathode successively |
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 charge collected as the voltage is 2.65 2.95 kV for GEM and cathode successively |
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 charge collected as the voltage is 2.70 3.00 kV for GEM and cathode successively |
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 charge collected as the voltage is 2.75 3.05 kV for GEM and cathode successively |
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 charge collected as the voltage is 2.80 3.10 kV for GEM and cathode successively |
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 charge collected as the voltage is 2.60 2.90 kV for GEM and cathode successively |
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 charge collected as the voltage is 2.65 2.95 kV for GEM and cathode successively |
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|
 charge collected as the voltage is 2.70 3.00 kV for GEM and cathode successively |
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 charge collected as the voltage is 2.75 3.05 kV for GEM and cathode successively |
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 charge collected as the voltage is 2.80 3.10 kV for GEM and cathode successively |
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A Non-linear increase in the charge collected by the Q-ADC as the voltage increases for GEM HV-circuit, also the figures show the change in the charge spectrum as the shutter position changed, shutter open's charge spectra show more collected charge than that of shutter close.
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