Online ISSN: 1884-4111 Print ISSN: 0033-8303
Radioisotopes 66(10): 385-393 (2017)

特集Special Issues

1 放射線化学とは—放射線と物質の相互作用—1 Radiation Chemistry—Interaction and Reaction in the Materials by Ionizing Radiation—

早稲田大学理工学術院Research Institute for Science and Engineering, Waseda University ◇ 169–8555 東京都新宿区大久保3–4–1 ◇ 3–4–1, Okubo, Shinjuku-ku, Tokyo 169–8555, Japan

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


The complete understanding of radiation chemical reactions is very difficult, because above reactions are controlled by the many parameters such as physical constants and different LETs of quantum beams. The radiation induced reaction will start at the excitation and ionization of solvent or bulk material and then the energy should be transported to the solutes or the objected sites. The reaction will be changed by the LET of the beam, solvents (or bulk material) and the dielectric constants of the system, etc. In such a way, even for the experts in this field, complete understanding of reactions has been seriously difficult.

Thus, sometimes, radiation chemistry was pointed as “dirty science” by other researchers, who are in the closed field such as photochemistry. However, the commercial, medical and industrial applications of ionizing radiation are widely progressed in the society. Under the condition, the basic and complete understandings of radiation induced reaction are highly appreciated. In this manuscript, the author intended to describe the outlook of the radiation chemical reaction as clear as possible.

Key words: ionizing radiation; radiation-induced reaction; electron beam; ion beam; stopping power; industrial application

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