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[ALICE3] IOTOF: Make timing response independent for different pixels #15884

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[ALICE3] IOTOF: Make timing response independent for different pixels #15884

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fa4e6de
make timing response independent for different pixels (dt from steppi…
maciacco Oct 1, 2026
00c04c6
remove useless include and commented line
maciacco Oct 1, 2026
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4 changes: 2 additions & 2 deletions Detectors/Upgrades/ALICE3/IOTOF/simulation/src/Digitizer.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -135,7 +135,6 @@ void Digitizer::processHit(const o2::itsmft::Hit& hit, int evID, int srcID)
double hitTime = hit.GetTime() * sec2ns; // convert to ns
double eventTimeInBC = mEventTime.getTimeOffsetWrtBC(); // event time wrt bc
double hitTimeWrtBC = hitTime + eventTimeInBC; // hit time wrt bc
double smearedTime = smearTime(hitTimeWrtBC);

// Create the digit with time information
o2::MCCompLabel label(hit.GetTrackID(), evID, srcID, false);
Expand Down Expand Up @@ -168,6 +167,8 @@ void Digitizer::processHit(const o2::itsmft::Hit& hit, int evID, int srcID)
const int nElectronsSampled = gRandom->Poisson(electronsPerStep * nEleResp);
// Noise can be added here if needed

double smearedTime = smearTime(hitTimeWrtBC);

registerDigits(chip, roFrameAbs, smearedTime, nROF,
static_cast<uint16_t>(rowIS), static_cast<uint16_t>(colIS), nElectronsSampled, label);
}
Expand Down Expand Up @@ -195,7 +196,6 @@ void Digitizer::stepping(const o2::itsmft::Hit& hit, float**& respMatrix, float*
const auto& digitizerParams = o2::iotof::DPLDigitizerParam::Instance();
auto stepVector = (xyzPositionEnd - xyzPositionStart) / digitizerParams.nSimSteps;
xyzPositionStart = xyzPositionStart + stepVector * 0.5f; // center the start position in the middle of the step
xyzPositionEnd = xyzPositionEnd - stepVector * 0.5f; // center the end position in the middle of the step

rowStart = -1;
colStart = -1;
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