Hi everyone

I am trying to detect ion products during ionisation by the electric field in geant4 .

i have implemented electric field inside the box which have been fiiled by some materials that is being exposed by electrons with energy equal to the ionisation energy (incident electrons energy range 5 ev - 30 ev ) of inside material.

i want to detect ion after ionisation,but electrons are being produced and there are no ions.

I have used G4VModularPhysicsList class and have used G4EmStandardPhysics , G4DecayPhysics and G4RadioactiveDecayPhysics at construct method of physicslist class.

Why i can not detect ions? Are there any Physicslists to produce ion products during ionisation in geant4?

Regards,

Tabaei