RIKEN Nishina Center for Accelerator-Based Science Nuclear Chemistry Research Team
Team Leader: Hiromitsu Haba (D.Sc.)
Research Summary

We develop production technologies of radioisotopes (RIs) at RIKEN RI Beam Factory (RIBF) for application studies in the fields of physics, chemistry, biology, medicine, pharmaceutical and environmental sciences. We mainly use the RIs for nuclear and radiochemical studies such as superheavy element chemistry. Purified RIs such as Zn-65 and Cd-109 are delivered to universities and institutes through Japan Radioisotope Association. We also develop new technologies of mass spectrometry for the trace-element analyses using accelerator technology and apply them to the research fields such as cosmochemistry, environmental science, archaeology and so on. We employ the conventional technology of isotopic measurements to examine sulfur and lead in geochemical and archeological samples. We also develop chemical materials for ECR ion sources of RIBF.
Main Research Fields
- Chemistry
Related Research Fields
- Environmental Science
- Complex Systems
- Social Sciences
- Interdisciplinary Science & Engineering
- Mathematical & Physical Sciences
- Engineering
Keywords
- Nuclear chemistry
- Radiochemistry
- RI production and application
- Superheavy element
- Trace-element analysis
Selected Publications
- 1.
Y. Shigekawa, A. Yamaguchi, K. Suzuki, H. Haba, T. Hiraki, H. Kikunaga, T. Masuda, S. Nishimura, N. Sasao, A. Yoshimi, and K. Yoshimura:
"Estimation of radiative half-life of 229mTh by half-life measurement of other nuclear excited states in 229Th"
Phys. Rev. C 104, 024306 (2021). - 2.
H. Takashima, Y. Koga, S. Manabe, K. Ohnuki, R. Tsumura, T. Anzai, N. Iwata, Y. Wang, T. Yokokita, Y. Komori, D. Mori, S. Usuda, H. Haba, H. Fujii, Y. Matsumura, and M. Yasunaga:
"Radioimmunotherapy with an 211At-labeled anti-tissue factor antibody protected by sodium ascorbate"
Cancer Sci. 112, 1975 (2021). - 3.
Y. Kasamatsu, K. Toyomura, H. Haba, T. Yokokita, Y. Shigekawa, A. Kino, Y. Yasuda, Y. Komori, J. Kanaya, M. Huang, M. Murakami, H. Kikunaga, E. Watanabe, T. Yoshimura, K. Morita, T. Mitsugashira, K. Takamiya, T. Ohtsuki, and A. Shinohara:
"Co-precipitation behaviour of single atoms of rutherfordium in basic solutions"
Nature Chem. 13, 226 (2021). - 4.
T. Tanaka, K. Morita, K. Morimoto, D. Kaji, H. Haba, R. A. Boll, N. T. Brewer, S. Van Cleve, D. J. Dean, S. Ishizawa, Y. Ito, Y. Komori, K. Nishio, T. Niwase, B. C. Rasco, J. B. Roberto, K. P. Rykaczewski, H. Sakai, D. W. Stracener, and K. Hagino:
"Fusion Dynamics for Hot Fusion Reactions to Synthesize Superheavy Nuclei revealed in Quasielastic Barrier Distributions"
Phys. Rev. Lett. 124, 052502 (2020). - 5.
H. Haba, F. Fan, D. Kaji, Y. Kasamatsu, H. Kikunaga, Y. Komori, N. Kondo, H. Kudo, K. Morimoto, K. Morita, M. Murakami, K. Nishio, J. P. Omtvedt, K. Ooe, Z. Qin, D. Sato, N. Sato, T. K. Sato, Y. Shigekawa, A. Shinohara, M. Takeyama, T. Tanaka, A. Toyoshima, K. Tsukada, Y. Wakabayashi, Y. Wang, S. Wulff, S. Yamaki, S. Yano, Y. Yasuda, and T. Yokokita:
"Production of 266Bh in the 248Cm(23Na,5n)266Bh reaction and its decay properties"
Phys. Rev. C 102, 024625 (2020). - 6.
A. Yamaguchi, H. Muramatsu, T. Hayashi, N. Yuasa, K. Nakamura, M. Takimoto, H. Haba, K. Konashi, M. Watanabe, H. Kikunaga, K. Maehata, N. Y. Yamasaki, and K. Mitsuda:
"Energy of the 229Th nuclear clock isomer determined by absolute γ-ray energy difference"
Phys. Rev. Lett. 123, 222501 (2019). - 7.
H. Haba:
"A new period in superheavy-element hunting"
Nature Chem. 11, 10 (2019). - 8.
T. Masuda, A. Yoshimi, A. Fujieda, H. Fujimoto, H. Haba, H. Hara, T. Hiraki, H. Kaino, Y. Kasamatsu, S. Kitao, K. Konashi, Y. Miyamoto, K. Okai, S. Okubo, N. Sasao, M. Seto, T. Schumm, Y. Shigekawa, K. Suzuki, S. Stellmer, K. Tamasaku, S. Uetake, M. Watanabe, T. Watanabe, Y. Yasuda, A. Yamaguchi, Y. Yoda, T. Yokokita, M. Yoshimura, and K. Yoshimura:
"X-ray pumping of the 229Th nuclear clock isomer"
Nature 573, 238 (2019). - 9.
Y. Wang, S. Cao, J. Zhang, F. Fan, J. Yang, H. Haba, Y. Komori, T. Yokokita, K. Morimoto, D. Kaji, Y. J. Wittwer, R. Eichler, A. Türler, and Z. Qin:
"The study of rhenium pentacarbonyl complexes using single-atom chemistry in gas phase"
Phys. Chem. Chem. Phys. 21, 7147 (2019). - 10.
K. Fujiki, Y. Kanayama, S. Yano, N. Sato, T. Yokokita, P. Ahmadi, Y. Watanabe, H. Haba, and K. Tanaka:
"211At-labeled immunoconjugate via a one-pot three-component double click strategy: practical access to α-emission cancer radiotherapeutics"
Chem. Sci. 10, 1936 (2019).
Recent Research Results
Oct. 31, 2014
Super-heavy chemistry
Lab Members
Principal investigator
- Hiromitsu Haba
- Team Leader
Core members
- Hiroo Hasebe
- Research & Development Scientist
- Xiaojie Yin
- Contract Researcher
- Yudai Shigekawa
- Postdoctoral Researcher
- Akihiro Nambu
- Technical Staff I
- Motoki Sato
- Junior Research Associate
- Teruhito Nakashita
- Junior Research Associate
- Nozomi Sato
- Research Part-time Worker I
- Michiko Kitagawa
- Research Part-time Worker I
- Sachiko Usuda
- Research Part-time Worker I
- Minako Osanai
- Research Part-time Worker II
- Kazuya Takahashi
- Special Temporary Research Scientist
Contact Information
Nishina Building,
2-1 Hirosawa,
Wako, Saitama
351-0198, Japan
Email: haba [at] riken.jp