TDC Calibration: Difference between revisions
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[[Image:Old_calibration.jpg |500 px]] | [[Image:Old_calibration.jpg |500 px]] | ||
The width of photon peak is about '''10.3 ns'''. | The width of photon peak is about '''10.3 ns''' for old calibration. | ||
[[Image:New_calibration.jpg |500 px]] | [[Image:New_calibration.jpg |500 px]] | ||
The width of photon peak is about '''32.3 ns'''. | The width of photon peak is about '''32.3 ns''' for new calibration. | ||
Revision as of 04:35, 7 November 2008
We used:
-detector A to calibrate all the TDCs;
-LeCroy octal discriminator to produce standard negative pulses;
-passive delay line to calibrate TDCs in the region < 100 ns;
-delay amplifier TENNELEC TC215 to calibrate TDCs in the region > 250 ns;
Range of all three TDCs was set to 50nsx100.
ADC-TAC pair was chosen in such a way that we used during the experiment.
ORTEC TAC 567-02 and ADC 1D
ORTEC TAC 567-01 and ADC 1A
ORTEC TAC 566-01 and ADC 1C
Comparison of old and new calibration coefficients
The width of photon peak is about 10.3 ns for old calibration.
The width of photon peak is about 32.3 ns for new calibration.