Control of stopping position of radioactive ion beam in superfluid helium for laser spectroscopy experiments

X. F. Yang, T. Furukawa, T. Wakui, K. Imamura, H. Tetsuka, T. Fujita, Y. Yamaguchi, Y. Tsutsui, Y. Mitsuya, Y. Ichikawa, Y. Ishibashi, N. Yoshida, H. Shirai, Y. Ebara, M. Hayasaka, S. Arai, S. Muramoto, A. Hatakeyama, M. Wada, T. SonodaY. Ito, T. Kobayashi, S. Nishimura, M. Nishimura, Y. Kondo, K. Yoneda, H. Ueno, T. Shinozuka, T. Shimoda, K. Asahi, Y. Matsuo

研究成果: ジャーナルへの寄稿学術誌査読

3 被引用数 (Scopus)

抄録

In order to investigate the structure of exotic nuclei with extremely low yields by measuring nuclear spins and moments, a new laser spectroscopy technique - "OROCHI" (Optical Radioisotopes Observation in Condensed Helium as Ion-catcher) has been proposed in recent years. The feasibility of this technique has been demonstrated by means of a considerable amount of offline and online studies of various atoms in superfluid helium. For in-situ laser spectroscopy of atoms in He II, trapping atoms in the observation region of laser is a key step. Therefore, a method which enables us to trap accelerated atoms at a precise position in He II is highly needed for performing experiment. In this work, a technique making use of a degrader, two plastic scintillators and a photon detection system is established for checking the stopping position of beam based on the LISE++ calculation. The method has been tested and verified by on-line experiments with the 84,85,87Rb beam. Details of the experimental setup, working procedure and testing results of this method are presented.

本文言語英語
ページ(範囲)599-602
ページ数4
ジャーナルNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
317
PART B
DOI
出版ステータス出版済み - 12月 15 2013
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 核物理学および高エネルギー物理学
  • 器械工学

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