+const Float_t ccframe = 1.0; // Thickness of the carbon chamber frame
+
+// Thicknesses of the the material layers
+const Float_t sethick = 0.02; // Radiator seal
+const Float_t rathick = 4.2; // Radiator
+const Float_t pethick = 0.20; // PE-layer in the radiator
+const Float_t mythick = 0.005; // Mylar-layer
+const Float_t xethick = 3.5; // Gas mixture
+const Float_t cuthick = 0.001; // Pad plane
+const Float_t suthick = 0.06; // HEXCEL+G10 support structure (= 0.31% X0)
+const Float_t fethick = 0.0044; // FEE + signal lines (= 0.31% X0)
+const Float_t cothick = 0.02; // PE of the cooling device
+const Float_t wathick = 0.01; // Cooling water
+
+// Position of the material layers
+const Float_t sezpos = -5.657; // Radiator seal
+const Float_t razpos = -3.557; // Radiator
+const Float_t pezpos = 0.0; // PE-layer in the radiator
+const Float_t myzpos = -1.4545; // Mylar-layer
+const Float_t xezpos = 0.298; // Gas mixture
+const Float_t cuzpos = 2.047; // Pad plane
+const Float_t suzpos = 3.046; // HEXCEL+G10 support structure
+const Float_t fezpos = 4.0482; // FEE + signal lines
+const Float_t cozpos = 4.1504; // PE of the cooling devices
+const Float_t wazpos = 4.3004; // Cooling water
+
+////////////////////////////////////////////////
+// Parameter for the energy loss calculation
+////////////////////////////////////////////////
+
+const Float_t kPoti = 12.1; // First ionization potential (eV)
+const Float_t kEend = 50000.0; // Maximum energy (50 keV);
+