Stochastic method for calculating the influence of track structure on the yield of free radicals in aqueous solutions. [Pulsed deuterons and alpha particles]
The beads on a string model proposed by Ganguly and Magee (A.K. Ganguly and J.L. Magee, J. Chem. Phys. 25, 129(1956)) was generalized to allow Monte Carlo techniques to be used in calculating the influence of track structure on the yield of free radicals at early times following energy deposition by ionizing radiation in aqueous solutions. The results of the Monte Carlo calculations can be interpreted in terms of an effective linear energy transfer (LET) that is significantly less than the stopping power of the radiation when the track structure has a diffuse radial distribution due to energy transport by delta-rays. By incorporating this effective LET for deuterons and alpha particles into a one radical approximation, the model can account for the effect of track structure on the yield of hydrated electrons measured by Sauer and co-workers (M.C. Sauer, Jr., K.H. Schmidt, E.J. Hart, C.A. Naleway and C.D. Jonah, Radiat. Res. 70, 91(1977)). 3 figures.
- Research Organization:
- Pacific Northwest Lab., Richland, WA (USA)
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 6862645
- Report Number(s):
- PNL-SA-10220; CONF-820931-11; ON: DE83003477
- Resource Relation:
- Conference: 8. symposium on microdosimetry, Julich, F.R. Germany, 27 Sep 1982
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
RADICALS
G VALUE
SOLVATED ELECTRONS
WATER
RADIOLYSIS
ALPHA BEAMS
AQUEOUS SOLUTIONS
CYCLOHEXANE
DEUTERON BEAMS
LET
MONTE CARLO METHOD
PARTICLE TRACKS
PULSED IRRADIATION
REACTION INTERMEDIATES
ALKANES
BEAMS
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
CYCLOALKANES
DECOMPOSITION
DISPERSIONS
ELECTRONS
ELEMENTARY PARTICLES
ENERGY TRANSFER
FERMIONS
HELIUM 4 BEAMS
HYDROCARBONS
HYDROGEN COMPOUNDS
ION BEAMS
IRRADIATION
LEPTONS
MIXTURES
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
RADIATION CHEMISTRY
RADIATION EFFECTS
SOLUTIONS
400600* - Radiation Chemistry