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TPC: take the ionisation of a stopping step from the energy deposit #16130

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TPC: take the ionisation of a stopping step from the energy deposit #16130

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3 changes: 2 additions & 1 deletion Detectors/TPC/simulation/src/Detector.cxx
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Expand Up @@ -211,7 +211,8 @@ Bool_t Detector::ProcessHits(FairVolume* vol)
// I.H. - the type expected in addHit is float

// use Geant4 energy deposit directly for ionisation (Kr-83m calibration simulations)
if (detParam.UseGeant4Edep) {
// and for the step that ends a track, whose post-step momentum cannot describe the step
if (detParam.UseGeant4Edep || fMC->IsTrackStop()) {
// We have multiple collisions and add fluctuations: smear nel using
// gamma distr with mean = meanIon and variance = meanIon*FanoFactorG4.
// These parameters were tuned for GEANT4.
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