diff --git a/NPLib/Physics/GEF.cxx b/NPLib/Physics/GEF.cxx
index e4b4ec5ca2b2c1fa40692fbd542159d6e004330b..91fe62db97e6fc50f6da7d2fb091cc5eaa605099 100644
--- a/NPLib/Physics/GEF.cxx
+++ b/NPLib/Physics/GEF.cxx
@@ -553,9 +553,10 @@ void GEF::FissionGENERAL()
 {
   float ZsqrA_fis;
 
-  //ZsqrA_fis = Csng(I_Z_CN^2) / Csng(I_A_CN);
-  ZsqrA_fis = pow(I_Z_CN,2)/I_A_CN;
-  Escission_lim = 0;//900.0 * exp(-ZsqrA_fis/13.0); // from PRC 86 (2012) 034605
+  ZsqrA_fis = Csng(I_Z_CN^2) / Csng(I_A_CN);
+  //ZsqrA_fis = pow(I_Z_CN,2)/I_A_CN;
+  //Escission_lim = 0;//900.0 * exp(-ZsqrA_fis/13.0); // from PRC 86 (2012) 034605
+  Escission_lim = 900.0 * exp(-ZsqrA_fis/13.0); // from PRC 86 (2012) 034605
   CentralZ_FM();
   I_N_CN = I_A_CN - I_Z_CN;
   MeanDefScission();
diff --git a/NPSimulation/Detectors/Sofia/Sofia.cc b/NPSimulation/Detectors/Sofia/Sofia.cc
index d727204f7f77ba0b7e376fb7de497adf8274e896..437b3b60797ccae004eb6a08f19c37264b320ddb 100644
--- a/NPSimulation/Detectors/Sofia/Sofia.cc
+++ b/NPSimulation/Detectors/Sofia/Sofia.cc
@@ -272,7 +272,7 @@ void Sofia::ReadSensitive(const G4Event* ){
     if(Energy>Sofia_NS::EnergyThreshold){
       double Time = RandGauss::shoot(Scorer->GetTime(i),Sofia_NS::ResoTime);
       int DetectorNbr = level[0];
-      int PlasticNbr = level[1];
+      int PlasticNbr = level[1]-1;
       m_Event->SetDetectorNbr(DetectorNbr);
       m_Event->SetPlasticNbr(PlasticNbr);
       m_Event->SetEnergy(Energy);
diff --git a/Projects/Sofia/.gitignore b/Projects/Sofia/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..3ed1a0bc5543756a8eec83cda3a6483250aa8556
--- /dev/null
+++ b/Projects/Sofia/.gitignore
@@ -0,0 +1 @@
+*.detector
diff --git a/Projects/Sofia/sofia.detector b/Projects/Sofia/sofia.detector
index 269ef8b5bc52492b68e2f50cf409eaf1dd3d01d2..2169ee897754ad40039862d6a07d1404ee009b4a 100644
--- a/Projects/Sofia/sofia.detector
+++ b/Projects/Sofia/sofia.detector
@@ -14,6 +14,6 @@ Sofia
  PHI= 0 deg
  Build_GLAD= 1
  GLAD_DistanceFromTarget= 3.5 m
- GLAD_MagField= 1.4 T 
+ GLAD_MagField= 1.8 T 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%