Geant4-DNA simulation of the pre-chemical stage of water radiolysis and its impact on initial radiochemical yields.
Phys Med
; 88: 86-90, 2021 Aug.
Article
em En
| MEDLINE
| ID: mdl-34198026
ABSTRACT
This paper demonstrates the impact of the pre-chemical stage, especially the dissociation scheme and the associated probabilities, on water radiolysis simulation using the Geant4-DNA Monte Carlo track structure simulation toolkit. The models and parameters provided by TRACs have been collected and implemented into Geant4-DNA. In order to evaluate their influence on water radiolysis simulation, the radiochemical yields (G-values) are evaluated as a function of time and LET using the "chem6" Geant4-DNA example, and they are compared with published experimental and calculated data. The new pre-chemical models lead to a better agreement with literature data than the default pre-chemical models of Geant4-DNA, especially for OH radicals and H2O2. The revised chemistry constructor "G4EmDNAChemistry_option3" is available in Geant4-DNA version 10.7.
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1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Água
/
Peróxido de Hidrogênio
Tipo de estudo:
Health_economic_evaluation
Idioma:
En
Revista:
Phys Med
Assunto da revista:
BIOFISICA
/
BIOLOGIA
/
MEDICINA
Ano de publicação:
2021
Tipo de documento:
Article