Difference between revisions of "CDC Hit Generation"
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(→CDC Hits from CDCDigi Hits) |
(→CDC Hits from CDCDigi Hits) |
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* the code that converts raw hits from the fADC125s of the CDC into actual CDC Hits is done in several steps: | * the code that converts raw hits from the fADC125s of the CDC into actual CDC Hits is done in several steps: | ||
| − | ** the code DCDCHit_factory_Calib.cc takes the raw CDCDigiHits and create CDCHits based on the raw information. In this process the pedestal is subtracted from the signal peak amplitude and the integral and in addition the amplitude is converted into an energy based on calibration data. A code snipet of this procedure is shown | + | ** the code DCDCHit_factory_Calib.cc takes the raw CDCDigiHits and create CDCHits based on the raw information. In this process the pedestal is subtracted from the signal peak amplitude and the integral and in addition the amplitude is converted into an energy based on calibration data. A code snipet of this procedure is shown here: <br> ''double amp = amp_a_scale*gain*double(maxamp);'' |
| − | + | ** In the following pictures the top row of 3 histograms shows the signal amplitude vs signal integral as reported by the FPGA of the fADC125. This raw data is taken from DCDCDigiHit objects generated from DCDCPulse objects. | |
Revision as of 19:34, 2 May 2024
CDC Hits from CDCDigi Hits
- the code that converts raw hits from the fADC125s of the CDC into actual CDC Hits is done in several steps:
- the code DCDCHit_factory_Calib.cc takes the raw CDCDigiHits and create CDCHits based on the raw information. In this process the pedestal is subtracted from the signal peak amplitude and the integral and in addition the amplitude is converted into an energy based on calibration data. A code snipet of this procedure is shown here:
double amp = amp_a_scale*gain*double(maxamp); - In the following pictures the top row of 3 histograms shows the signal amplitude vs signal integral as reported by the FPGA of the fADC125. This raw data is taken from DCDCDigiHit objects generated from DCDCPulse objects.
- the code DCDCHit_factory_Calib.cc takes the raw CDCDigiHits and create CDCHits based on the raw information. In this process the pedestal is subtracted from the signal peak amplitude and the integral and in addition the amplitude is converted into an energy based on calibration data. A code snipet of this procedure is shown here:
Example Run 120594 without(left) and with(right) cut at 180 for raw adc signal peak
Example Run 72780 without(left) and with(right) cut at 180 for raw adc signal peak
Example Run 72840 without(left) and with(right) cut at 180 for raw adc signal peak
