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とぴっくす: 放射線照射試料に特徴的な動的核スピン偏極機構
2013
Biannual Journal of Japanese Society of Radiation Chemistry
We have studied dynamic nuclear polarization (DNP) behavior of polyethylene irradiated with electron and particle beams. Both of the growth and decay rates of the nuclear polarization of the polyethylene samples linearly increase with increasing concentration of alkyl free radicals produced by the radiolysis, whereas those of 2,2,6,6-tetramethylpiperidine 1-oxyl (TEMPO)-doped samples are proportional to the square of the concentration of the TEMPO. This result suggests that the DNP of the
doi:10.32157/jsrc.95.0_21
fatcat:cgzptbx3qzbspkjhvfr43enumm