Physics lists


For any application in liquid water based on the Geant4-DNA extension, we recommend the implementation of a Geant4-DNA physics list using the G4EmDNAPhysics* Physics constructors listed on this page.

Dedicated documentation is provided in the Geant4 Book For Application Developers, in the Geant4-DNA: Physics processes section.

The usage of such constructors is described in several Geant4-DNA extended examples, see the examples section.

List of available Geant4-DNA Physics constructors for liquid water


We currently recommend several Geant4-DNA Physics constructors for simulations in liquid water; they are listed below.

  • G4EmDNAPhysics_option2: accelerated default constructor, simulating electron interactions up to 1 MeV, as well as all other particle interactions
  • G4EmDNAPhysics_option4: contains electron elastic and inelastic models by D. Emfietzoglou, I. Kyriakou, S. Incerti, up to 10 keV
  • G4EmDNAPhysics_option6: contains CPA100 electron elastic and inelastic models by M. C. Bordage, M. Terrissol, S. Incerti, up to 255 keV
These constructors are described in the following publication.

Notes


  • The source code of all G4EmDNAPhysics* physics constructors may be found in the $G4INSTALL/source/physics_lists/constructors/electromagnetic directory.
  • The G4EmDNAPhysics_option6 constructor can also transport electrons in DNA components (see Physics processes and models).
  • From Geant4 version 11.2, to facilitate combination with Geant4 standard electromagnetic physics, option4 and option6 constructors can be used for electrons up to 1 MeV; the Born ionisation and excitation models (used in option2) are indeed used beyond the upper energy limit of the electron inelastic models.