This paper presents the influence of electron elastic scattering models, electron thermalization models, and chemical parameters on Geant4-DNA simulations of liquid water radiolysis under mega-electron-volt electron irradiation. The radiochemical yields are simulated using a new Geant4-DNA example. In particular, the influence of the new elastic scattering model recently developed is presented as well as the influence of improved electron thermalization models. The influence of a new chemistry constructor using parameters of another Monte Carlo track structure code is also described. The results calculated using these different models are compared with each other and with experimental data. For sub-mega-electron-volt electron simulations, the combination of the "G4EmDNAPhysics-option2" physics constructor with the recently developed elastic scattering model, the Meesungnoen electron thermalization model, and the "G4EmDNAChemistry-option1" chemistry constructor is recommended.
|Journal||Journal of Applied Physics|
|Publication status||Published - 2019 Sept 21|
Bibliographical noteFunding Information:
The authors thank Professor Francesc Salvat from Barcelona University for his helpful advice. The authors also thank the University of Bordeaux Initiative of Excellence International Doctorates program in the framework of the “France-Korea Particle Physics Laboratory” International Associated Laboratory (2017– 2020). I. Kyriakou and D. Emfietzoglou acknowledge financial support from the European Space Agent (ESA) under Contract No. 4000126645/19/NL/BW.
© 2019 Author(s).
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)