Online ISSN: 1884-4111 Print ISSN: 0033-8303
Radioisotopes 66(10): 451-458 (2017)

特集Special Issues

7 凝縮系におけるジェミネートイオン再結合7 Geminate Ion Recombination in Condensed Matter

大阪大学産業科学研究所The Institute Scientific and Industrial Research, Osaka university ◇ 567–0047 大阪府茨木市美穂ケ丘8–1 ◇ 8–1 Mihogaoka, Ibaraki-shi, Osaka, 567–0047, Japan

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


Radiation induced ionization and thermalization, and geminate ion recombination in the condensed matter was described. Whether the geminate ion recombines each other or escapes to free ions is determined by the relation between the thermalization distance and the Onsager distance indicating the effective distance of the Coulomb interaction. This kinetic are represented by the Smoluchowski equation that means the Brownian motion of electrons and radical cations with the Coulomb interaction. This is determined by the material properties such as the diffusion constant of the electron and radical cation, the dielectric constant, the temperature and the thermalized distance distribution function. By analyzing the experimental data of geminate ion recombination, it is possible to obtain the diffusion constant and the thermalized distance distribution function in the condensed matter.

Key words: ionization; thermalization; geminate ion recombination; Onsager theory

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