Monte Carlo simulation of physicochemical processes of liquid water radiolysis. The effects of dissolved oxygen and OH scavenger.
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.
Tomita
H
H
Department of Radiological Health, Faculty of Medicine, University of Tokyo, Japan. tomita@ctl.hitachi.co.jp
Kai
M
M
Kusama
T
T
Ito
A
A
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*
D016166:Free Radical Scavengers; D014867:Water; D017665:Hydroxyl Radical; D010100:Oxygen