Modeling early events in the radiation chemistry of dilute aqueous solutions

Conference · Mon Nov 01 04:00:00 EST 1982

OSTI ID:6497421

Miller, J H; Wilson, W E

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)).

• Research Organization: Pacific Northwest Lab., Richland, WA (USA)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 6497421
• Report Number(s): PNL-SA-10873; CONF-820998-1; ON: DE83005559
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400600* -- Radiation Chemistry
ALKANES
ALPHA PARTICLES
AQUEOUS SOLUTIONS
CHARGED PARTICLES
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
CYCLOALKANES
CYCLOHEXANE
DECOMPOSITION
DEUTERONS
DISPERSIONS
ELECTRONS
ELEMENTARY PARTICLES
ENERGY TRANSFER
FERMIONS
G VALUE
HYDROCARBONS
HYDROGEN COMPOUNDS
LEPTONS
LET
MIXTURES
MONTE CARLO METHOD
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
RADIATION CHEMISTRY
RADIATION EFFECTS
RADICALS
RADIOLYSIS
SOLUTIONS
SOLVATED ELECTRONS
WATER