Online ISSN: 1884-4111 Print ISSN: 0033-8303
Radioisotopes 66(10): 497-505 (2017)

特集Special Issues

12 イオンビーム放射線化学12 Ion Beam Radiation Chemistry

1国立大学法人東京大学大学院工学系研究科原子力専攻Nuclear Professional School, School of Engineering, The University of Tokyo ◇ 319–1188 茨城県那珂郡東海村白方白根2–22 ◇ 2–22 Shirakata-shirane, Tokai-mura, Naka-gun, Ibaraki 319–1188 Japan

2国立大学法人長岡技術科学大学技学研究院原子力システム安全工学専攻Department of Nuclear System Safety Engineering, Institute of GIGAKU, Nagaoka University of Technology ◇ 940–0035 新潟県長岡市上富岡1603–1 ◇ 1603–1 Kamitomioka, Nagaoka, Niigata 940–0035 Japan

3国立研究開発法人量子科学技術研究開発機構量子ビーム科学研究部門Quantum Beam Science Research Directorate, National Institutes for Quantum and Radiological Science and Technology ◇ 370–1292 群馬県高崎市綿貫町1233 ◇ 1233 Watanuki-machi, Takasaki, Gunma 370–1292 Japan

発行日:2017年10月15日Published: October 15, 2017


Practical uses of ion beams have been being widely spread especially in medical and industrial fields. Ion beams show a wide variety of irradiation effects depending on ion’s mass (atom) and energy (velocity). Two of the greatest characteristics of ion beams are briefly summarized in this article: one is high density of ionization events near radiation trajectory (track) and the other is nuclear collisions between ions in beam and atomic nucleus in matter. Specifically, correlation between track structure in water and yields of water decomposition products as well as typical mechanism of damage formation in crystalline materials are shown. In addition, future perspectives related to some open questions are also mentioned. Figures 1 and 3 are used with permission of Radiation Research.

Key words: ion beam; track; stopping power; LET; secondary electron

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