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Laser spectroscopy of atoms in superfluid helium for the measurement of nuclear spins and electromagnetic moments of radioactive atoms

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Abstract

A new laser spectroscopic method named “OROCHI (Optical RI-atom Observation in Condensed Helium as Ion catcher)” has been developed for deriving the nuclear spins and electromagnetic moments of low-yield exotic nuclei. In this method, we observe atomic Zeeman and hyperfine structures using laser-radio-frequency/microwave double-resonance spectroscopy. In our previous works, double-resonance spectroscopy was performed successfully with laser-sputtered stable atoms including non-alkali Au atoms as well as alkali Rb and Cs atoms. Following these works, measurements with 84−87Rb energetic ion beams were carried out in the RIKEN projectile fragment separator (RIPS). In this paper, we report the present status of OROCHI and discuss its feasibility, especially for low-yield nuclei such as unstable Au isotopes.

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Authors and Affiliations

  1. Department of Physics, Osaka University, 1–1 Machikaneyama, Toyonaka, Osaka, 560–0043, Japan

    T. Fujita & T. Shimoda

  2. Department of Physics, Tokyo Metropolitan University, 1–1 Minami-Osawa, Hachioji, Tokyo, 192–0397, Japan

    T. Furukawa

  3. RIKEN Nishina Center, 2–1 Hirosawa, Wako, Saitama, 351–0198, Japan

    K. Imamura, X. F. Yang & H. Ueno

  4. Department of Physics, Meiji University, 1-1-1 Higashimita, Tama, Kawasaki, Kanagawa, 214-8571, Japan

    K. Imamura

  5. School of Physics, Peking University, Chengfu Road, Haidian District, Beijing, 100871, China

    X. F. Yang

  6. Department of Applied Physics, Tokyo University of Agriculture and Technology, 2–24–16 Naka-cho, Koganei, Tokyo, 184–8588, Japan

    A. Hatakeyama

  7. RIKEN Center for Advanced Photonics, 2–1 Hirosawa, Wako, Saitama, 351–0198, Japan

    T. Kobayashi

  8. Department of Physics, Tokyo Institute of Technology, 2–12–1 Oh-Okayama, Meguro, Tokyo, 152–8551, Japan

    K. Asahi

  9. Department of Advanced Sciences, Hosei University, 3–7–2 Kajino-cho, Koganei-shi, Tokyo, 184–8548, Japan

    Y. Matsuo

Authors
  1. T. Fujita
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  2. T. Furukawa
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  3. K. Imamura
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  4. X. F. Yang
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  5. A. Hatakeyama
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  6. T. Kobayashi
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  7. H. Ueno
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  8. K. Asahi
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  9. T. Shimoda
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  10. Y. Matsuo
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Consortia

OROCHI Collaboration

Corresponding author

Correspondence to T. Fujita.

Additional information

Proceedings of the 6th International Conference on Trapped Charged Particles and Fundamental Physics (TCP 2014), Takamatsu, Japan, 1-5 December 2014

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Fujita, T., Furukawa, T., Imamura, K. et al. Laser spectroscopy of atoms in superfluid helium for the measurement of nuclear spins and electromagnetic moments of radioactive atoms. Hyperfine Interact 236, 95–100 (2015). https://doi.org/10.1007/s10751-015-1206-0

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  • DOI: https://doi.org/10.1007/s10751-015-1206-0

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