Difference between revisions of "QADC spectrum"
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| − | |[[File:2.6_2.9kV_4.5.png | thumb |alt=Example alt text|charge collected as the | + | |[[File:2.6_2.9kV_4.5.png | thumb |alt=Example alt text|charge collected as the voltage is 2.60 2.90 kV for GEM and cathode successively| 200px]]|| |
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| − | |[[File: qdc_2.65_2.95_O_C.png | thumb |alt=Example alt text|charge collected as the | + | |[[File: qdc_2.65_2.95_O_C.png | thumb |alt=Example alt text|charge collected as the voltage is 2.65 2.95 kV for GEM and cathode successively| 200px]]|| |
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| − | |[[File: 2.7_3.0_O_C.png | thumb |alt=Example alt text|charge collected as the | + | |[[File: 2.7_3.0_O_C.png | thumb |alt=Example alt text|charge collected as the voltage is 2.70 3.00 kV for GEM and cathode successively| 200px]]|| |
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| − | |[[File: 2.75_3.05_O_C.png | thumb |alt=Example alt text|charge collected as the | + | |[[File: 2.75_3.05_O_C.png | thumb |alt=Example alt text|charge collected as the voltage is 2.75 3.05 kV for GEM and cathode successively| 200px]]|| |
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| − | |[[File: 2.8_3.1_O_C.png | thumb |alt=Example alt text|charge collected as the | + | |[[File: 2.8_3.1_O_C.png | thumb |alt=Example alt text|charge collected as the voltage is 2.80 3.10 kV for GEM and cathode successively| 200px]]|| |
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Revision as of 23:01, 30 October 2013
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.
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 of shutter close.
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