Difference between revisions of "First look at TOF calibration"
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(Created page with "=== First Look === * first select data sample with the following conditions: *# only consider hits within 50ns of the timing peak both for ADC data and TDC data *# only consid...") |
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*# calculate Time difference: <math>\Delta t = t^{i}_{TDC}-t^{i}_{ADC}</math> | *# calculate Time difference: <math>\Delta t = t^{i}_{TDC}-t^{i}_{ADC}</math> | ||
*# calculate Integral: I = pulse_integral - pulse_pedestal*nsamples | *# calculate Integral: I = pulse_integral - pulse_pedestal*nsamples | ||
− | *# [] | + | *# [[Image:walk_correction_example.pdf|200px]] |
Revision as of 10:45, 15 April 2015
First Look
- first select data sample with the following conditions:
- only consider hits within 50ns of the timing peak both for ADC data and TDC data
- only consider paddles that have hits on both ends
- take care of the 6fold trigger timing shift in the TDC (24ns window)
- do a rough determination of the walk correction by using the time in the ADC as reference.
- calculate Time difference:
- calculate Integral: I = pulse_integral - pulse_pedestal*nsamples
- File:Walk correction example.pdf