On the migration of helium bubbles |
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| Authors: | P. J. Goodhew |
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| Affiliation: | Department of Metallurgy and Materials Technology , University of Surrey , Guildford GU2 5XH, U.K |
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| Abstract: | Abstract ESR-spectroscopy was used to study free radical formation in solid, polycrystalline pellets of DNA-subunits after heavy charged particle bombardment and after X-ray irradiation. Dose-yield curves were measured at 300 K and analyzed for initial G-values (radicals per 100 eV absorbed energy) and saturation concentrations. Both parameters show a characteristic LET-dependence which will be discussed in terms of the inhomogenous distributions of energy within the particle tracks. |
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| Keywords: | Energy transfer FH centers Electronic-vibrational (E-V) coupling |
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