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Separation of laser-cooled 42Ca+ and 44Ca+ in a linear Paul trap

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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.

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Authors and Affiliations

  1. Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-8531, Japan, , , , , , JP

    K. Toyoda, H. Kataoka, Y. Kai, A. Miura & S. Urabe

  2. Kansai Advanced Research Center, Communications Research Laboratory, 588-2 Iwaoka, Iwaoka-cho, Nishi-ku, Kobe 651-2492, Japan, , , , , , JP

    M. Watanabe

Authors
  1. K. Toyoda
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  2. H. Kataoka
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  3. Y. Kai
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  4. A. Miura
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  5. M. Watanabe
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  6. S. Urabe
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Received: 7 July 2000 / Published online: 10 January 2001

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Toyoda, K., Kataoka, H., Kai, Y. et al. Separation of laser-cooled 42Ca+ and 44Ca+ in a linear Paul trap . Appl Phys B 72, 327–330 (2001). https://doi.org/10.1007/s003400100494

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  • DOI: https://doi.org/10.1007/s003400100494

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