Superheavy Element Research Group

Laboratory Head

Kosuke MORITAD.Sci.

• 1984年九州大学理学研究課物理学専攻博士後期課程満期退学
• 1984年理化学研究所サイクロトロン研究室研究員補
• 1991年理化学研究所サイクロトロン研究室研究員
• 1993年博士（理学）九州大学
• 1993年理化学研究所サイクロトロン研究室先任研究員
• 2006年仁科センター森田超重元素研究室准主任研究員（現職）
  新潟大、東京理科大、九大　客員教授（現職）

• GARIS User Guide

Research Areas

The elements with their atomic number Z>103 are called as trans-actinide or superheavy elements. The chemical properties of those elements have not yet been studied in detail. Those elements are not exist in nature therefore, they must be produced by artificially for the scientific study of those elements. In our laboratory, we have been studying the physical and chemical properties of the superheavy elements utilizing the accelerators in RIKEN and various methods of efficient production of the superheavy elements.

List of Selected Publications

1. Kaji, D., Morimoto, K., Haba, H., Wakabayashi, Y., Takeyama, M., Yamaki, S., Komori, Y., Yanou, S., Goto, S., and Morita, K.:
   "Decay Measurement of ²⁸³Cn Produced in the ²³⁸U(⁴⁸Ca,³n) Reaction Using GARIS-II"
   Journal of Physical Society of Japan, 86, 085001 (2017)
   
2. Kaji, D., Morita, K., Morimoto, K., Haba, H., Asai, M., Fujita, K., Gan, Z., Geissel, H., Hasebe, H., Hofmann, S., Huang, M., Komori, Y., Ma, L., Maurer, J., Murakami, M., Takeyama, M., Tokanai, F., Tanaka, T., Wakabayashi. Y., Yamaguchi, T., Yamaki, S., and Yoshida, A.,:
   "Study of the Reaction ⁴⁸Ca + ²⁴⁸Cm → ²⁹⁶Lv* at RIKEN-GARIS"
   Journal of Physical Society of Japan, 86, 034201(2017)
   
3. Kaji, D., and Morimoto, K.,:
   "Double-layered target and identification method of individual target correlated with evaporation residues"
   Nuclear Inst. And Methods in Physics Research, A, Vol. 792, p. 11-14 (2015)
   
4. Morita, K., Morimoto, K., Kaji, D., Haba, H., Ozeki, K., Kudou, Y., Sumita, T., Wakabayashi, Y., Yoneda, A., Tanaka, K., Yamaki, S., Sakai, R., Akiyama, T., Goto, S., Hasebe, H., Huang, M., Huang, T., Ideguchi, E., Kasamatsu, Y., Katori, K., Kariya, Y., Kikunaga, H., Koura, H., Kudo, H., Mashiko, A., Mayama, K., Mitsuoka, S., Moriya, T., Murakami, M., Murayama, H., Namai, S., Ozawa, A., Sato, N., Sueki, K., Takeyama, M., Tokanai, F., Yamaguchi, T., and Yoshida, A.,:
   "New result in the Production and Decay of an Isotope, ²⁷⁸113, of the 113th Element"
   Journal of Physical Society of Japan, 81, 103201(2012)
   
5. Kaji, D., Morimoto, K., Sato, N. Ichikawa, T., Ideguchi, E., Ozeki, K., Haba, H., Koura, H., Kudou, Y., Ozawa, A., Sumita, T., Yamaguchi, T., Yoneda, A., Yoshida, A.,and Morita, K.:
   "Production and Decay Properties of ²⁶³Hs."
   Journal of Physical Society of Japan, 78, 035003(2009).
   
6. Kaji, D., Morimoto, K., Yoneda, A. Hasebe, H., Yoshida, A., Goto. S., Kudo, H.,and Morita, K.:
   "Target for the heaviest element production at RIKEN."
   Nucl. Instr. and Meth. A 590 (198) (2008).
   
7. Morita, K., Morimoto, K., Kaji, D., Akiyama, T., Goto, S., Haba, H., Ideguchi, E., Katori, K., Koura, H., Kikunaga, H., Kudo, H., Ohnishi, T., Ozawa, A., Sato, N., Suda, T., Sueki, K., Tokanai, F., Yamaguchi, T., Yoneda, A., and Yoshida, A.:
   "Observation of Second Decay Chain from ²⁷⁸113."
   Journal of Physical Society of Japan, 76, 045001(2007).
   
8. Morita, K., Morimoto, K., Kaji, D., Akiyama, T., Goto, S., Haba, H., Ideguchi, E., Katori, K., Koura, H., Kudo, H., Ohnishi, T., Ozawa, A., Suda, T., Sueki, K., Tokanai, F., Yamaguchi, T., Yoneda, A., and Yoshida, A.:
   "Experiment on Synthesis of an Isotope ²⁷⁷112 by ²⁰⁸Pb + ⁷⁰Zn Reaction."
   Journal of Physical Society of Japan, 76, 043201(2007).
   
9. Haba, H., Kaji, D., Kikunaga, H., Akiyama, T., Sato, N., Morimoto, K., Yoneda, A., Morita, K., Takabe, T., and Shinohara, A.:
   "Development of Gas-jet Transport System Coupled to the RIKEN Gas-filled Recoil Ion Separator GARIS for Superheavy Element Chemistry."
   J. Nucl. Radiochem. Sci. 8, 55-58 (2007).
   
10. Morita, K., Morimoto, K., Kaji, D., Akiyama, T., Goto, S., Haba, H., Ideguchi, E., Kanungo, R., Katori, K., Koura, H., Kudo, H., Ohnishi, T., Ozawa, A., Suda, T., Sueki, K., Xu, H., Yamaguchi, T., Yoneda, A., Yoshida, A., and Zhao, Y.-L.:
    "Experiment on the Synthesis of Element 113 in the Reaction ²⁰⁹Bi(⁷⁰Zn,n)²⁷⁸113."
    Journal of Physical Society of Japan, 73, 2593-2596(2004).

Team List