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ITS3: move the energy deposition wrt. centre of response #14415

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Merged
fgrosa merged 5 commits into from
Jun 24, 2025
Merged

ITS3: move the energy deposition wrt. centre of response #14415

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f790fd5
move the energy deposition wrt. centre of response
ChunzhengLab Jun 17, 2025
6c8c904
fix the order of IB/OB for noise seeding
ChunzhengLab Jun 17, 2025
ccd75ae
print out the resp centre in the CheckChipResponseFile
ChunzhengLab Jun 17, 2025
fb4c608
find the real centre
ChunzhengLab Jun 19, 2025
5d41f76
should use the total eff but not only seed
ChunzhengLab Jun 19, 2025
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8 changes: 4 additions & 4 deletions Detectors/Upgrades/ITS3/simulation/src/ChipDigitsContainer.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -31,12 +31,12 @@ void ChipDigitsContainer::addNoise(UInt_t rofMin, UInt_t rofMax, const o2::its3:
int nel = 0;

if (isIB()) {
// Inner barrel: use ITS3-specific noise interface with OB segmentation.
mean = params->getIBNoisePerPixel() * SegmentationOB::NPixels;
// Inner barrel: use ITS3-specific noise interface with IB segmentation.
mean = params->getIBNoisePerPixel() * SegmentationIB::NPixels;
nel = static_cast<int>(params->getIBChargeThreshold() * 1.1);
} else {
// Outer barrel: use base class noise interface with IB segmentation.
mean = params->getNoisePerPixel() * SegmentationIB::NPixels;
// Outer barrel: use base class noise interface with OB segmentation.
mean = params->getNoisePerPixel() * SegmentationOB::NPixels;
nel = static_cast<int>(params->getChargeThreshold() * 1.1);
}

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3 changes: 2 additions & 1 deletion Detectors/Upgrades/ITS3/simulation/src/Digitizer.cxx
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Expand Up @@ -90,7 +90,8 @@ void Digitizer::init()
} else {
LOGP(fatal, "ResponseFunction '{}' not implemented!", func);
}
mSimRespIBShift = mSimRespIB->getDepthMax() - constants::silicon::thickness / 2.f;
mSimRespIB->computeCentreFromData();
mSimRespIBShift = mSimRespIB->getDepthMax() - constants::silicon::thickness / 2.f - mSimRespIB->getRespCentreDep();
mSimRespOBShift = mSimRespOB->getDepthMax() - SegmentationOB::SensorLayerThickness / 2.f;
}

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