Oxygen as a product of water radiolysis in high-LET tracks. II. Radiobiological implications

Journal Article · Tue Mar 31 23:00:00 EST 1981 · Radiat. Res.; (United States)

DOI:https://doi.org/10.2307/3575596· OSTI ID:6399334

Baverstock, K F ^[1]; Burns, W G

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1. MRC Radiobiology Unit, Harwell, England

Consideration is given to the possibility that molecular oxygen generated in the tracks of energetic heavy ions is responsible for the reduction in oxygen enhancement ratio (OER) with increasing linear energy transfer (LET) observed for the loss of reproductive capacity caused by radiation in many cellular organisms. Yields of oxygen relationship of OER to LET for two organisms, Chlamydomonas reinhardii and Shigella flexneri, using a simple diffusion kinetic model for radiobiological action which takes account of the diffusion of oxygen after its formation. The results of these calculations show that the model accounts well for the shape of the OER vs. LET relationship.

• OSTI ID: 6399334
• Journal Information: Radiat. Res.; (United States), Journal Name: Radiat. Res.; (United States) Vol. 86:1; ISSN RAREA
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400600* -- Radiation Chemistry
560131 -- Radiation Effects on Microorganisms-- Basic Studies-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ALGAE
BACTERIA
BIOLOGICAL EFFECTS
BIOLOGICAL MODELS
BIOLOGICAL RADIATION EFFECTS
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
CHLAMYDOMONAS
CORRELATIONS
DECOMPOSITION
ELEMENTS
ENERGY TRANSFER
EVEN-EVEN NUCLEI
G VALUE
HELIUM 4
HELIUM ISOTOPES
HYDROGEN COMPOUNDS
ISOTOPES
LET
LIGHT NUCLEI
MICROORGANISMS
NONMETALS
NUCLEI
OXYGEN
OXYGEN COMPOUNDS
OXYGEN ENHANCEMENT RATIO
PLANTS
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIOLYSIS
SHIGELLA
STABLE ISOTOPES
UNICELLULAR ALGAE
WATER