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首页> 外文期刊>Nuclear Instruments & Methods in Physics Research. B, Beam Interactions with Materials and Atoms >Spin-aligned RI beams via two-step fragmentation reactions
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Spin-aligned RI beams via two-step fragmentation reactions

机译：通过两步碎裂反应自旋对准RI光束

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摘要

A method to produce spin-aligned rare isotope (RI) beams has been developed, where a scheme of two-step projectile fragmentation to produce the Rl of interest with high spin alignment and a technique of momentum-dispersion matching are combined. Effectiveness of the present method was demonstrated in an experiment at the RIKEN RIBF, where an RI beam of ~(32)Al with spin alignment of 8(1)% was successfully produced from a primary beam of ~(48)Ca, via an intermediate RI of ~(33)Al. Figure of merit of the present method was found to be more than 50 times greater than that of the conventional method employing single-step projectile fragmentation.
机译：已经开发了产生自旋对准的稀有同位素（RI）束的方法，其中结合了两步弹丸碎裂以产生具有高自旋对准的感兴趣的R1的方案和动量色散匹配技术。本方法的有效性在RIKEN RIBF的实验中得到了证明，其中〜（32）Al的RI光束通过〜（48）Ca的主光束成功地产生了自旋对准的〜（32）Al的RI光束。 〜（33）Al的中间RI。发现本方法的品质因数比采用单步弹丸碎裂的常规方法的品质因数大50倍以上。

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    Y. Ichikawa; H. Ueno; Y. Ishii; T. Furukawa; A. Yoshimi; D. Kameda; H. Watanabe; N. Aoi; K. Asahi; D.L. Balabanski; R. Chevrier; J.M. Daugas; N. Fukuda; G. Georgiev; H. Hayashi; H. Iijima; N. Inabe; T. Inoue; M. Ishihara; T. Kubo; T. Nanao; T. Ohnishi; K. Suzuki; M. Tsuchiya; H. Takeda; M.M. Rajabali;

  • 作者单位

    Department of Physics, Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro, Tokyo 152-8551, Japan;

    RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan;

    Department of Physics, Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro, Tokyo 152-8551, Japan;

    Department of Physics, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan;

    Research Core for Extreme Quantum World, Okayama University, 3-1-1 Tsushimanaka, Kita, Okayama 700-8530, Japan;

    RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan;

    RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan;

    RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan;

    Department of Physics, Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro, Tokyo 152-8551, Japan;

    Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, BG-1784 Sofia, Bulgaria;

    CEA, DAM, DIF, F-91297 Arpajon, France;

    CEA, DAM, DIF, F-91297 Arpajon, France;

    RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan;

    CSNSM, IN2P3-CNRS, Universite Paris-sud, F-91404 Orsay, France;

    Department of Physics, Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro, Tokyo 152-8551, Japan;

    Department of Physics, Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro, Tokyo 152-8551, Japan;

    RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan;

    Department of Physics, Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro, Tokyo 152-8551, Japan;

    RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan;

    RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan;

    Department of Physics, Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro, Tokyo 152-8551, Japan;

    RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan;

    Department of Physics, Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro, Tokyo 152-8551, Japan;

    Department of Physics, Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro, Tokyo 152-8551, Japan;

    RIKEN Nishina Center, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan;

    Instituut voor Kem-en Stralingsfysica, K.U. Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium;

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  • 关键词

    Nuclear spin; Nuclear moment; RI beam;

    机译：核自旋;核矩RI光束;

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