diff --git a/ALICE3/Core/DetLayer.cxx b/ALICE3/Core/DetLayer.cxx
index b9757de2d2f..647822f524d 100644
--- a/ALICE3/Core/DetLayer.cxx
+++ b/ALICE3/Core/DetLayer.cxx
@@ -28,29 +28,29 @@ namespace o2::fastsim
 {
 
 // Parametric constructor
-DetLayer::DetLayer(const TString& name_,
-                   float r_,
-                   float z_,
-                   float x0_,
-                   float xrho_,
-                   float resRPhi_,
-                   float resZ_,
-                   float eff_,
-                   int type_)
-  : name(name_),
-    r(r_),
-    z(z_),
-    x0(x0_),
-    xrho(xrho_),
-    resRPhi(resRPhi_),
-    resZ(resZ_),
-    eff(eff_),
-    type(type_)
+DetLayer::DetLayer(const TString& name,
+                   float r,
+                   float z,
+                   float x0,
+                   float xrho,
+                   float resRPhi,
+                   float resZ,
+                   float eff,
+                   int type)
+  : mName(name),
+    mR(r),
+    mZ(z),
+    mX0(x0),
+    mXrho(xrho),
+    mResRPhi(resRPhi),
+    mResZ(resZ),
+    mEff(eff),
+    mType(type)
 {
 }
 
 DetLayer::DetLayer(const DetLayer& other)
-  : name(other.name), r(other.r), z(other.z), x0(other.x0), xrho(other.xrho), resRPhi(other.resRPhi), resZ(other.resZ), eff(other.eff), type(other.type)
+  : mName(other.mName), mR(other.mR), mZ(other.mZ), mX0(other.mX0), mXrho(other.mXrho), mResRPhi(other.mResRPhi), mResZ(other.mResZ), mEff(other.mEff), mType(other.mType)
 {
 }
 
@@ -60,12 +60,12 @@ void DetLayer::addDeadPhiRegion(float phiStart, float phiEnd)
   static constexpr float kPhiTolerance = 1e-4f;
   if (mDeadPhiRegions == nullptr) {
     mDeadPhiRegions = new TGraph();
-    mDeadPhiRegions->SetNameTitle(Form("deadPhiRegions_%s", name.Data()), Form("Dead phi regions for layer %s", name.Data()));
+    mDeadPhiRegions->SetNameTitle(Form("deadPhiRegions_%s", mName.Data()), Form("Dead phi regions for layer %s", mName.Data()));
     mDeadPhiRegions->AddPoint(0, kDefaultValue);
     mDeadPhiRegions->AddPoint(o2::constants::math::TwoPI, kDefaultValue);
   }
   if (phiStart < 0 || phiStart >= o2::constants::math::TwoPI || phiEnd < 0 || phiEnd >= o2::constants::math::TwoPI) {
-    LOG(fatal) << "Cannot add dead phi region with invalid range [" << phiStart << ", " << phiEnd << "] to layer " << name;
+    LOG(fatal) << "Cannot add dead phi region with invalid range [" << phiStart << ", " << phiEnd << "] to layer " << mName;
     return;
   }
   mDeadPhiRegions->AddPoint(phiStart, kDefaultValue);
@@ -77,14 +77,14 @@ void DetLayer::addDeadPhiRegion(float phiStart, float phiEnd)
 
 void DetLayer::setDeadPhiRegions(TGraph* graph)
 {
-  LOG(debug) << "Setting dead phi regions for layer " << name << " with graph " << (graph ? graph->GetName() : "nullptr");
+  LOG(debug) << "Setting dead phi regions for layer " << mName << " with graph " << (graph ? graph->GetName() : "nullptr");
   if (mDeadPhiRegions != nullptr) {
-    LOG(warning) << "Overriding existing dead phi regions for layer " << name;
+    LOG(warning) << "Overriding existing dead phi regions for layer " << mName;
     delete mDeadPhiRegions;
   }
   mDeadPhiRegions = graph;
   if (mDeadPhiRegions->GetN() == 0) {
-    LOG(warning) << "Dead phi regions graph for layer " << name << " is empty, clearing dead regions";
+    LOG(warning) << "Dead phi regions graph for layer " << mName << " is empty, clearing dead regions";
     mDeadPhiRegions = nullptr;
     return; // cleared the dead regions
   }
@@ -95,18 +95,18 @@ void DetLayer::setDeadPhiRegions(TGraph* graph)
       const float y = mDeadPhiRegions->GetY()[i];
       // First point has to be at 0, last point has to be at 2PI
       if ((i == 0 && x != 0.f) || (i == mDeadPhiRegions->GetN() - 1 && x != o2::constants::math::TwoPI)) {
-        LOG(fatal) << "Dead phi regions graph for layer " << name << " has invalid x value " << x << " at point " << i << ", first point should be 0 and last point should be 2PI";
+        LOG(fatal) << "Dead phi regions graph for layer " << mName << " has invalid x value " << x << " at point " << i << ", first point should be 0 and last point should be 2PI";
       }
       LOG(debug) << "Point " << i << ": (" << x << ", " << y << ")";
       if (x < 0 || x > o2::constants::math::TwoPI) {
-        LOG(fatal) << "Dead phi regions graph for layer " << name << " has invalid x value " << x << " at point " << i;
+        LOG(fatal) << "Dead phi regions graph for layer " << mName << " has invalid x value " << x << " at point " << i;
       }
       if (y != 0.f && y != 2.f) {
-        LOG(fatal) << "Dead phi regions graph for layer " << name << " has invalid y value " << y << " at point " << i << ", should be 0 or 2";
+        LOG(fatal) << "Dead phi regions graph for layer " << mName << " has invalid y value " << y << " at point " << i << ", should be 0 or 2";
       }
     }
   } else {
-    LOG(info) << "Cleared dead phi regions for layer " << name;
+    LOG(info) << "Cleared dead phi regions for layer " << mName;
   }
 }
 
@@ -114,32 +114,38 @@ std::string DetLayer::toString() const
 {
   std::string out = "";
   out.append("DetLayer: ");
-  out.append(name.Data());
+  out.append(mName.Data());
   out.append(" | r: ");
-  out.append(std::to_string(r));
+  out.append(std::to_string(mR));
   out.append(" cm | z: ");
-  out.append(std::to_string(z));
+  out.append(std::to_string(mZ));
   out.append(" cm | x0: ");
-  out.append(std::to_string(x0));
+  out.append(std::to_string(mX0));
   out.append(" cm | xrho: ");
-  out.append(std::to_string(xrho));
+  out.append(std::to_string(mXrho));
   out.append(" g/cm^3 | resRPhi: ");
-  out.append(std::to_string(resRPhi));
+  out.append(std::to_string(mResRPhi));
   out.append(" cm | resZ: ");
-  out.append(std::to_string(resZ));
+  out.append(std::to_string(mResZ));
   out.append(" cm | eff: ");
-  out.append(std::to_string(eff));
+  out.append(std::to_string(mEff));
   out.append(" | type: ");
-  switch (type) {
-    case layerInert:
+  switch (mType) {
+    case kLayerInert:
       out.append("Inert");
       break;
-    case layerSilicon:
+    case kLayerSilicon:
       out.append("Silicon");
       break;
-    case layerGas:
+    case kLayerGas:
       out.append("Gas/TPC");
       break;
+    case kLayerTOF:
+      out.append("TOF");
+      break;
+    case kLayerVertex:
+      out.append("Vertex");
+      break;
     default:
       out.append("Unknown");
       break;
diff --git a/ALICE3/Core/DetLayer.h b/ALICE3/Core/DetLayer.h
index 1efc730c0d5..32c5a839684 100644
--- a/ALICE3/Core/DetLayer.h
+++ b/ALICE3/Core/DetLayer.h
@@ -32,21 +32,21 @@ struct DetLayer {
   // Default constructor
   DetLayer() = default;
   // Parametric constructor
-  DetLayer(const TString& name_, float r_, float z_, float x0_, float xrho_,
-           float resRPhi_ = 0.0f, float resZ_ = 0.0f, float eff_ = 0.0f, int type_ = layerInert);
+  DetLayer(const TString& name, float r, float z, float x0, float xrho,
+           float resRPhi = 0.0f, float resZ = 0.0f, float eff = 0.0f, int type = kLayerInert);
   // Copy constructor
   DetLayer(const DetLayer& other);
 
   // Setters
-  void setName(const TString& name_) { name = name_; }
-  void setRadius(float r_) { r = r_; }
-  void setZ(float z_) { z = z_; }
-  void setRadiationLength(float x0_) { x0 = x0_; }
-  void setDensity(float xrho_) { xrho = xrho_; }
-  void setResolutionRPhi(float resRPhi_) { resRPhi = resRPhi_; }
-  void setResolutionZ(float resZ_) { resZ = resZ_; }
-  void setEfficiency(float eff_) { eff = eff_; }
-  void setType(int type_) { type = type_; }
+  void setName(const TString& name) { mName = name; }
+  void setRadius(float r) { mR = r; }
+  void setZ(float z) { mZ = z; }
+  void setRadiationLength(float x0) { mX0 = x0; }
+  void setDensity(float xrho) { mXrho = xrho; }
+  void setResolutionRPhi(float resRPhi) { mResRPhi = resRPhi; }
+  void setResolutionZ(float resZ) { mResZ = resZ; }
+  void setEfficiency(float eff) { mEff = eff; }
+  void setType(int type) { mType = type; }
 
   // Dead areas
 
@@ -60,21 +60,24 @@ struct DetLayer {
   void setDeadPhiRegions(TGraph* graph);
 
   // Getters
-  float getRadius() const { return r; }
-  float getZ() const { return z; }
-  float getRadiationLength() const { return x0; }
-  float getDensity() const { return xrho; }
-  float getResolutionRPhi() const { return resRPhi; }
-  float getResolutionZ() const { return resZ; }
-  float getEfficiency() const { return eff; }
-  int getType() const { return type; }
-  const TString& getName() const { return name; }
+  float getRadius() const { return mR; }
+  float getZ() const { return mZ; }
+  float getRadiationLength() const { return mX0; }
+  float getDensity() const { return mXrho; }
+  float getResolutionRPhi() const { return mResRPhi; }
+  float getResolutionZ() const { return mResZ; }
+  float getEfficiency() const { return mEff; }
+  int getType() const { return mType; }
+  const TString& getName() const { return mName; }
   const TGraph* getDeadPhiRegions() const { return mDeadPhiRegions; }
 
-  // Check layer type
-  bool isInert() const { return type == layerInert; }
-  bool isSilicon() const { return type == layerSilicon; }
-  bool isGas() const { return type == layerGas; }
+  // Check layer mType
+  bool isInert() const { return mType == kLayerInert; }
+  bool isSilicon() const { return mType == kLayerSilicon; }
+  bool isGas() const { return mType == kLayerGas; }
+  bool isTOF() const { return mType == kLayerTOF; }
+  bool isVertex() const { return mType == kLayerVertex; }
+  bool isActive() const { return mType != kLayerInert; } // active layers are not inert
 
   // Utilities
   std::string toString() const;
@@ -93,33 +96,36 @@ struct DetLayer {
     return mDeadPhiRegions->Eval(phi) > 1.f;
   };
 
+  static constexpr int kLayerVertex = -1; // vertex layer type (not used in tracking)
+  static constexpr int kLayerInert = 0;   // inert/undefined layer
+  static constexpr int kLayerSilicon = 1; // silicon layer
+  static constexpr int kLayerGas = 2;     // gas/tpc layer
+  static constexpr int kLayerTOF = 3;     // TOF layer type (not used in tracking)
+
  private:
   // TString for holding name
-  TString name;
+  TString mName;
 
   // position variables
-  float r; // radius in centimeters
-  float z; // z dimension in centimeters
+  float mR; // radius in centimeters
+  float mZ; // mZ dimension in centimeters
 
   // material variables
-  float x0;   // radiation length
-  float xrho; // density
+  float mX0;   // radiation length
+  float mXrho; // density
 
   // resolution variables for active layers
-  float resRPhi; // RPhi resolution in centimeters
-  float resZ;    // Z resolution in centimeters
+  float mResRPhi; // RPhi resolution in centimeters
+  float mResZ;    // Z resolution in centimeters
 
   // efficiency
-  float eff; // detection efficiency
+  float mEff; // detection efficiency
 
   // dead regions in phi (in radians)
   TGraph* mDeadPhiRegions = nullptr;
 
   // layer type
-  int type;                              // 0: undefined/inert, 1: silicon, 2: gas/tpc
-  static constexpr int layerInert = 0;   // inert/undefined layer
-  static constexpr int layerSilicon = 1; // silicon layer
-  static constexpr int layerGas = 2;     // gas/tpc layer
+  int mType; // 0: undefined/inert, 1: silicon, 2: gas/tpc
 };
 
 } // namespace o2::fastsim