Little fixes in the Alpide digitization

iouribelikov · shahor02 · commit f2a2daafe056 · 2020-01-16T14:31:45.000+01:00
diff --git a/Detectors/ITSMFT/common/base/include/ITSMFTBase/SegmentationAlpide.h b/Detectors/ITSMFT/common/base/include/ITSMFTBase/SegmentationAlpide.h
@@ -43,7 +43,7 @@ class SegmentationAlpide
   static constexpr float ActiveMatrixSizeRows = PitchRow * NRows; // Active size along rows
 
   // effective thickness of sensitive layer, accounting for charge collection non-unifoemity, https://alice.its.cern.ch/jira/browse/AOC-46
-  static constexpr float SensorLayerThicknessEff = 22.e-4;
+  static constexpr float SensorLayerThicknessEff = 28.e-4;
   static constexpr float SensorLayerThickness = 30.e-4;                                               // physical thickness of sensitive part
   static constexpr float SensorSizeCols = ActiveMatrixSizeCols + PassiveEdgeSide + PassiveEdgeSide;   // SensorSize along columns
   static constexpr float SensorSizeRows = ActiveMatrixSizeRows + PassiveEdgeTop + PassiveEdgeReadOut; // SensorSize along rows
diff --git a/Detectors/ITSMFT/common/simulation/src/Digitizer.cxx b/Detectors/ITSMFT/common/simulation/src/Digitizer.cxx
@@ -271,9 +271,9 @@ void Digitizer::processHit(const o2::itsmft::Hit& hit, UInt_t& maxFr, int evID,
 
   // take into account that the AlpideSimResponse depth defintion has different min/max boundaries
   // although the max should coincide with the surface of the epitaxial layer, which in the chip
-  // local coordinates has Y = +SensorLayerThicknessEff/2
+  // local coordinates has Y = +SensorLayerThickness/2
 
-  xyzLocS.SetY(xyzLocS.Y() + resp->getDepthMax() - Segmentation::SensorLayerThicknessEff / 2.);
+  xyzLocS.SetY(xyzLocS.Y() + resp->getDepthMax() - Segmentation::SensorLayerThickness / 2.);
 
   // collect charge in evey pixel which might be affected by the hit
   for (int iStep = nSteps; iStep--;) {
