RIKEN Nishina Center for Accelerator-Based Science Superheavy Element Research Group
Director: Kosuke Morita (D.Sci.)
Research Summary
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.
Main Research Fields
- Mathematical & Physical Sciences
Related Research Fields
- Interdisciplinary Science & Engineering
- Chemistry
Keywords
- Superheavy Element research
- Nuclear Experiment
- Accelerator
- Nuclear Chemistry
- Detector development
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 of283Cn Produced in the238U(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 Reaction48Ca +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 of263Hs."
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 from278113."
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 Isotope277112 by208Pb +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 Reaction209Bi(70Zn,n)278113."
Journal of Physical Society of Japan, 73, 2593-2596(2004).
Recent Research Results
Dec. 31, 2015
It’s official! Element 113 was discovered at RIKEN
Related Links
Lab Members
Principal investigator
- Kosuke Morita
- Director
Contact Information
2-1 Hirosawa,
Wako, Saitama
351-0198, Japan
Email: morita [at] ribf.riken.jp
Organization
- Superheavy Element Production Team
- Hiromitsu Haba (D.Sci.)
- Superheavy Element Device Development Team
- Kouji Morimoto (D.Sci.)