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Status of heavy element research using a gas-filled recoil separator at RIKEN

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Acta Physica Hungarica Series A, Heavy Ion Physics

Abstract

A gas-filled type of recoil separator for heavy element research was installed at an experimental hall of RIKEN Linear Accelerator facility to realize getting higher intensity of primary beam and long beam time. Performance of the separator was studied using target recoils and various nuclear reactions. The results show the high performance of the separator for heave element research. As an application of the GARIS, production and identification of an isotope of the 110th element 271[110] have been performed using the 208Pb(64Ni,1n)271[110] reaction. Three decay chains coincide well both in decay times and energies with the ones reported by the group of SHIP experiment at GSI, Germany. Our results provide a confirmation of the synthesis of an isotope 271[110] of element 110.

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Authors and Affiliations

  1. RIKEN (The Institute of Physical and Chemical Research), 351-0198, Wako-shi, Saitama, Japan

    Kosuke Morita, Kouji Morimoto, Daiya Kaji, Atsushi Yoshida, Toshimi Suda, Akira Yoneda, Tetsuya Ohnishi, Hiromitsu Haba, Eiji Ideguchi, Tao Zheng, Kenji Katori & Isao Tanihata

  2. Niigata University, 950-2181, Niigata, Japan

    Daiya Kaji & Hisaaki Kudo

  3. Institute of High Energy Physics, Chinese Academy of Science, 100039, Beijing, P.R. China

    Yu Liang Zhao

  4. Institute of Modern Physics, Chinese Academy of Science, 730000, Lanzhou, P.R. China

    Hu Shan Xu

  5. University of Tsukuba, 305-8577, Tsukuba-shi, Ibaragi, Japan

    Keisuke Sueki

Authors
  1. Kosuke Morita
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  2. Kouji Morimoto
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  3. Daiya Kaji
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  4. Yu Liang Zhao
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  5. Atsushi Yoshida
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  6. Toshimi Suda
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  7. Akira Yoneda
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  8. Tetsuya Ohnishi
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  9. Hiromitsu Haba
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  10. Eiji Ideguchi
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  11. Hu Shan Xu
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  12. Tao Zheng
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  13. Hisaaki Kudo
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  14. Keisuke Sueki
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  15. Kenji Katori
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  16. Isao Tanihata
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Morita, K., Morimoto, K., Kaji, D. et al. Status of heavy element research using a gas-filled recoil separator at RIKEN. Acta Phys. Hung. A 19, 53–60 (2004). https://doi.org/10.1556/APH.19.2004.1-2.8

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  • DOI: https://doi.org/10.1556/APH.19.2004.1-2.8

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