著者
Noboru KOBAYASHI Ichiro YAMAMOTO
出版者
Atomic Energy Society of Japan
雑誌
Journal of Nuclear Science and Technology (ISSN:00223131)
巻号頁・発行日
vol.34, no.3, pp.318-324, 1997-03-25 (Released:2008-04-18)
参考文献数
6
被引用文献数
1

By making use of the isotope approximation; neglecting squares of relative mass differences among the isotopes, the authors derived analytically approximations to ordinary diffusion coefficients in a 3- and 4- component isotope mixture. Moreover, approximations to multi-component diffusion coefficients were given on the analogy of those to the 3- and 4-component coefficients, and these approximations were verified to satisfy constrains on the exact ordinary diffusion coefficients. For 4-component mixture of uranium hexafluoride isotopes, 234UF6-235UF6-236UF6-236UF6, composition dependences of the approximation were equal to those of the exact diffusion coefficients. In addition, relative errors between the exact and the approximations were less than 0.2% for 5-component mixture of krypton 80-82-83-84-86 isotopes.

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