title: Monte Carlo simulation of physicochemical processes of liquid water radiolysis. The effects of dissolved oxygen and OH scavenger.
abstract: The paper describes developments of the physicochemical part of a computer code system that estimates DNA strand break induction on plasmid pBR322 DNA. In order to test the reliability of the model, we evaluated the dielectric function and the time-dependent yield of chemical species in the presence of OH radical scavenger or dissolved oxygen. Results agree with measurements on the radiolysis of liquid water. When a hybrid model of a liquid inelastic cross-section and a vapour elastic cross-section is used, energy deposition by vibrational excitations is estimated to be approximately 11% of total energy deposition.
authors.affiliation: Department of Radiological Health, Faculty of Medicine, University of Tokyo, Japan. tomita@ctl.hitachi.co.jp
authors.forename: H
authors.initials: H
authors.lastname: Tomita
authors.forename: M
authors.initials: M
authors.lastname: Kai
authors.forename: T
authors.initials: T
authors.lastname: Kusama
authors.forename: A
authors.initials: A
authors.lastname: Ito
mesh_terms: D016166:Free Radical Scavengers / Q000494:pharmacology*; D017665:Hydroxyl Radical / Q000378:metabolism*; D009010:Monte Carlo Method; D010100:Oxygen / Q000494:pharmacology*; D014732:Vibration; D014867:Water / Q000737:chemistry*
chemical_list: D016166:Free Radical Scavengers; D014867:Water; D017665:Hydroxyl Radical; D010100:Oxygen