Difference between revisions of "QADC spectrum"
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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. | 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. | ||
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| + | |[[File:gain_voltage.png | thumb |alt=Example alt text|GEM voltage vs. the charge of the peaks appear as shutter is open and close| 200px]]|| | ||
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| + | |[[File:gain_voltage_ratios.png | thumb |alt=Example alt text| GEM voltage vs. the realtive gain of the peaks appear as shutter is open and close | 200px]]|| | ||
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Revision as of 17:32, 31 October 2013
QDC 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 close.
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