Ambiguity with hIoni and IonIoni processes

All_particles.txt (732.1 KB)

Dear Users and developers,

I am trying to simulate the 14.1 MeV Neutron-induced reaction on mustard gas (elemental composition C4H8Cl2S) of volume 50x25x25(LxWxH). The ambiguity appear in the production of Protons and Alpha particles with Kinetic energies more than 14.1 MeV ( second last column in attached file). I printed the information in the Stepping action for the following variables:
Event no. ParentID. TrackID. StepID. Particle Process volumeBeforeStep VolumeAfterStep K.E. Edep

Please see the attached file for the numbers. For this simulation, I used the following physics list :-

RegisterPhysics(new G4DecayPhysics());
RegisterPhysics(new G4EmStandardPhysics());
RegisterPhysics(new G4EmExtraPhysics());
RegisterPhysics(new G4HadronPhysicsQGSP_BERT_HP());
RegisterPhysics( new G4IonPhysics(2));
RegisterPhysics( new NeutronHPphysics());

based on ModularPhysicsList constructors. My doubt is how the secondaries can have more kinetic energies than the projectile. Furthermore, **why the deposition ( lets see event 265 in attached file) stopped at kinetic energy approximately to the projectile energy (~ 14 MeV).

Any suggestion and pointer will be highly appreciable. I hope, I am able to put the question in proper form.

With best regards,