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RIKEN Nishina Center for Accelerator-Based Science Nuclear Chemistry Research Team

Team Leader: Hiromitsu Haba (D.Sci.)

Research Summary

Hiromitsu  Haba(D.Sci.)

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


  • Nuclear chemistry
  • Radiochemistry
  • RI production and application
  • Superheavy element
  • Trace-element analysis

Selected Publications

  • 1.H. Haba:
    "Synthesis of superheavy elements –Synthesis and discovery of the superheavy elements with atomic number Z ≥ 113–"
    Radioisotopes (in press; in Japanese).
  • 2.K. Fujiki, S. Yano, T. Ito, Y. Kumagai, Y. Murakami, O. Kamigaito, H. Haba, and K. Tanaka:
    "A one-pot three-component double-click method for synthesis of [67Cu]-labeled biomolecular radiotherapeutics"
    Sci. Rep. 7, 1912 (2017).
  • 3.S. Takács, F. Ditrói, Z. Szűcs, H. Haba, Y. Komori, M. Aikawa, and M. Saito:
    "Crosschecking of alpha particle monitor reactions up to 50 MeV"
    Nucl. Instr. and Meth. B 397, 33 (2017).
  • 4.T. Yokokita, Y. Kasamatsu, A. Kino, H. Haba, Y. Shigekawa, Y. Yasuda, K. Nakamura, K. Toyomura, Y. Komori, M. Murakami, T. Yoshimura, N. Takahashi, K. Morita, and A. Shinohara:
    "Observation of the chemical reaction equilibria of element 104, rutherfordium: Solid-liquid extraction of Rf, Zr, Hf and Th with Aliquat 336 resin from HCl"
    Dalton Trans. 45, 18827 (2016).
  • 5.H. Haba:
    "Superheavy element chemistry at GARIS"
    EPJ Web Conf. 131, 07006 (2016).
  • 6.Y. Wang, Z. Qin, F. L. Fan, H. Haba, Y. Komori, S. W. Cao, X.-L. Wu, and C.-M. Tan:
    " Gas-phase chemistry of technetium carbonyl complexes"
    Phys. Chem. Chem. Phys. 17, 13228 (2015).
  • 7.H. Haba:
    "Productions of radioisotopes for application studies at RIKEN RI Beam Factory"
    J. Part. Accel. Soc. Jpn. 12, 206 (2015) (in Japanese).
  • 8.M. Huang, H. Haba, M. Murakami, M. Asai, D. Kaji, J. Kanaya, Y. Kasamatsu, H. Kikunaga, Y. Kikutani, Y. Komori, H. Kudo, Y. Kudou, K. Morimoto, K. Morita, K. Nakamura, K. Ozeki, R. Sakai, A. Shinohara, T. Sumita, K. Tanaka, A. Toyoshima, K. Tsukada, Y. Wakabayashi, and A. Yoneda:
    "Production of88Nb and170Ta for chemical studies of element 105, Db, using the GARIS gas-jet system"
    J. Radioanal. Nucl. Chem. 304, 845 (2015).
  • 9.J. Even, A. Yakushev, Ch. E. Düllmann, H. Haba, M. Asai, T. K. Sato, H. Brand, A. Di Nitto, R. Eichler, F. L. Fan, W. Hartmann, M. Huang, E. Jäger, D. Kaji, J. Kanaya, Y. Kaneya, J. Khuyagbaatar, B. Kindler, J. V. Kratz, J. Krier, Y. Kudou, N. Kurz, B. Lommel, S. Miyashita, K. Morimoto, K. Morita, M. Murakami, Y. Nagame, H. Nitsche, K. Ooe, Z. Qin, M. Schädel, J. Steiner, T. Sumita, M. Takeyama, K. Tanaka, A. Toyoshima, K. Tsukada, A. Türler, I. Usoltsev, Y. Wakabayashi, Y. Wang, N. Wiehl, and S. Yamaki:
    "Synthesis and detection of a seaborgium carbonyl complex"
    Science 345, 1491 (2014).
  • 10.H. Haba, M. Huang, D. Kaji, J. Kanaya, Y. Kudou, K. Morimoto, K. Morita, M. Murakami, K. Ozeki, R. Sakai, T. Sumita, Y. Wakabayashi, A. Yoneda, Y. Kasamatsu, Y. Kikutani, Y. Komori, K. Nakamura, A. Shinohara, H. Kikunaga, H. Kudo, K. Nishio, A. Toyoshima, and K. Tsukada:
    "Production of262Db in the248Cm(19F,5n)262Db reaction and decay properties of262Db and258Lr"
    Phys. Rev. C 89, 024618 (2014).

Recent Research Results

Lab Members

Principal investigator

Hiromitsu Haba
Team Leader

Core members

Kazuya Takahashi
Senior Research Scientist
Hiroo Hasebe
Research & Development Scientist
Yukiko Komori
Contract Researcher
Takuya Yokokita
Postdoctoral Researcher
Yang Wang
Postdoctoral Researcher
Daiki Mori
Technical Staff I
Nozomi Sato
Research Part-time Worker I
Michiko Kitagawa
Research Part-time Worker I
Minako Osanai
Research Part-time Worker II

Contact Information

Nishina Building,
2-1 Hirosawa,
Wako, Saitama
351-0198, Japan
Email: haba [at] riken.jp