Molecular scale track structure simulations in liquid water using the Geant4-DNA Monte-Carlo processes

Z. Francis (1) , S. Incerti (2) , R. Capra , B. Mascialino , Gerard Montarou (3) , V. Stepan , C. Villagrasa (1)

1 IRSN - Institut de Radioprotection et de Sûreté Nucléaire
2 CENBG - Centre d'Etudes Nucléaires de Bordeaux Gradignan
3 LPC - Laboratoire de Physique Corpusculaire - Clermont-Ferrand

This paper presents a study of energy deposits induced by ionising particles in liquid water at the molecular scale. Particles track structures were generated using the Geant4-DNA processes of the Geant4 Monte-Carlo toolkit. These processes cover electrons (0.025 eV-1 MeV), protons (1 keV- 100 MeV), hydrogen atoms (1 keV-100 MeV) and alpha particles (10 keV-40 MeV) including their different charge states. Electron ranges and lineal energies for protons were calculated in nanometric and micrometric volumes.

Mots clés: Monte-Carlo; Geant4; Geant4-DNA; Microdosimetry; Cross-sections

Domaines: Biophysique [physics.bio-ph]

Z. Francis, S. Incerti, R. Capra, B. Mascialino, Gerard Montarou, et al.. Molecular scale track structure simulations in liquid water using the Geant4-DNA Monte-Carlo processes. Applied Radiation and Isotopes, 2011, 69, pp.220-226. ⟨10.1016/j.apradiso.2010.08.011⟩. ⟨in2p3-00516999⟩