量研学術機関リポジトリ「QST-Repository」は、国立研究開発法人 量子科学技術研究開発機構に所属する職員等が生み出した学術成果(学会誌発表論文、学会発表、研究開発報告書、特許等)を集積しインターネット上で広く公開するサービスです。 Welcome to QST-Repository where we accumulates and discloses the academic research results(Journal Publications, Conference presentation, Research and Development Report, Patent, etc.) of the members of National Institutes for Quantum Science and Technology.
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The production of sucrose radicals with heavy-ion-irradiation was investigated by an EPR(electron paramagnetic resonance) spectroscopic method.We examined thecorrelation between the production of sucrose radicals and the ion species, as well as LET(linear energy transfer).The spectral pattern obtained was the same for various ion species,including helium,carbon,neon,argon and iron ions.Quantitative EPR analyses showed that the production of sucrose radicals depended on both the ion species and the LET for the same dose of 50 Gy.The spin yield obtained showed a logarithmic correlation with the LET.In addition,the EPR respons had a linear relationship with dose in the dose range of 5-60 Gy.Thus the present EPR results show that sucrose can be used to monitor the ionizing particle based on the radical yield.