Index: trunk/MagicSoft/Simulation/Detector/include-MC/MCEventHeader_2.hxx
===================================================================
--- trunk/MagicSoft/Simulation/Detector/include-MC/MCEventHeader_2.hxx	(revision 1708)
+++ trunk/MagicSoft/Simulation/Detector/include-MC/MCEventHeader_2.hxx	(revision 1719)
@@ -164,5 +164,12 @@
   Float_t      CPhotons;     // Photons reaching the chamber
 
-  Float_t      dummy[10];     /* not used */
+    /* Now follow the fraction of photons reaching the camera produced by
+     * electrons, muons and other particles respectively:
+     */
+  Float_t       elec_cph_fraction;
+  Float_t       muon_cph_fraction;
+  Float_t       other_cph_fraction;
+  
+  Float_t      dummy[7];     /* not used */
 
 public:
@@ -292,4 +299,10 @@
 
   inline Float_t get_CWaveUpper() {return CWaveUpper;}
+
+  inline Float_t get_ElecFraction() {return elec_cph_fraction;}
+
+  inline Float_t get_MuonFraction() {return muon_cph_fraction;}
+
+  inline Float_t get_OtherFraction() {return other_cph_fraction;}
 
   // transport from COREventHeader to MCEventHeader_2