Separation of laser-cooled 42Ca+ and 44Ca+ in a linear Paul trap |
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Authors: | K. Toyoda H. Kataoka Y. Kai A. Miura M. Watanabe S. Urabe |
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Affiliation: | (1) Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-8531, Japan, JP;(2) Kansai Advanced Research Center, Communications Research Laboratory, 588-2 Iwaoka, Iwaoka-cho, Nishi-ku, Kobe 651-2492, Japan, JP |
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Abstract: | Rare calcium isotope ions, 42Ca+ and 44Ca+, were efficiently separated from a laser-cooled ionic cloud in a linear Paul trap which was loaded from an atomic source of a natural isotope mixture of calcium, in spite of their negligibly small abundances (0.647% and 2.086%, respectively) compared with that of 40Ca (96.94%). Selective heating and cooling that arise from the isotope shifts were mainly used for the elimination of the isotopes; selective heating and cooling enable flexible separation when combined with other mechanisms such as the inherent mass selectivity of RF traps. Received: 7 July 2000 / Published online: 10 January 2001 |
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Keywords: | PACS: 32.10.Bi 32.80.Pj |
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