RI Applications Team

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. In our group, the produced RIs are mainly used for nuclear and radiochemical studies such as superheavy element chemistry. The 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 scientific research fields such as cosmochemistry, environmental science, archaeology and so on. We also develop chemical materials for ECR ion sources of RIBF.

Research Subjects

• RI application researches
• R&D of RI production technology at RIBF
• Development of trace element analysis using the accelerator techniques and its application to geo and environmental sciences
• R&D of chemical materials for ECR ion sources of RIBF

Publications

1. M. U. Khandaker, H. Haba, J. Kanaya, and N. Otuka:
   "Excitation functions of (d,x) nuclear reactions on natural titanium up to 24 MeV"
   Nucl. Instr. and Meth. B 296 14-21 (2013).
2. H. Haba, J. Kanaya, H. Mukai, T. Kambara, and M. Kase:
   "One-year monitoring of airborne radionuclides in Wako, Japan, after the Fukushima Dai-ichi nuclear power plant accident in 2011"
   Geochem. J. 46, 271-278 (2012).
3. H. Haba, D. Kaji, Y. Kudou, K. Morimoto, K. Morita, K. Ozeki, R. Sakai, T. Sumita, A. Yoneda, Y. Kasamatsu, Y. Komori, A. Shinohara, H. Kikunaga, H. Kudo, K. Nishio, K. Ooe, N. Sato, and K. Tsukada:
   "Production of 265Sg in the 248Cm(22Ne,5n)265Sg reaction and decay properties of two isomeric states in 265Sg"
   Phys. Rev. C 85, 024611 (2012).
4. T. Taniai, K. Takahashi, S. Wakasugi, S. Hashimoto, A. Shimada, T. Urabe, and M. Tanaka:
   "Elution behavior and environmental impact of heavy metals and rare-earth elements from volcanic ashes of Mt. Oyama, Miyake island"
   Int. J. Environ. Anal. Chem. 92, 601-620 (2012).
5. H. Haba, D. Kaji, H. Kikunaga, Y. Kudou, K. Morimoto, K. Morita, K. Ozeki, T. Sumita, A. Yoneda, Y. Kasamatsu, Y. Komori, K. Ooe, and A. Shinohara:
   "Production and decay properties of the 1.9-s isomeric state in 261Rf"
   Phys. Rev. C 83, 034602 (2011).
6. M. Kidera, Y. Seto, K. Takahashi, S. Enomoto, S. Kishi, M. Makita, T. Nagamatsu, T. Tanaka, and M. Toda:
   "New method for comprehensive detection of chemical warfare agents using an electron-cyclotron-resonance ion-source mass spectrometer"
   Spectrochim. Acta, Part A 78, 1215-1219 (2011).
7. H. Haba, K. Akiyama, K. Tsukada, M. Asai, A. Toyoshima, T. Yaita, M. Hirata, K. Sueki, and Y. Nagame:
   "Chloride complexation of Zr and Hf in HCl investigated by extended X-ray absorption fine structure spectroscopy -Toward characterization of chloride complexation of element 104, rutherfordium (Rf)-"
   Bull. Chem. Soc. Jpn. 82, 698-703 (2009).
8. H. Haba, D. Kaji, Y. Komori, Y. Kudou, K. Morimoto, K. Morita, K. Ooe, K. Ozeki, N. Sato, A. Shinohara, and A. Yoneda:
   "RIKEN gas-filled recoil ion separator GARIS as a promising interface for superheavy element chemistry -Production of element 104, 261Rf, using the GARIS/gas-jet system-"
   Chem. Lett. 38, 426-427 (2009).
9. M. Tanaka, K. Takahashi, T. Urabe, T. Oikawa, M. Nemoto, and H. Nagashima:
   "First application of the depth profile of silica species as a tracer by fast-atom bombardment mass spectrometry: investigation of the circulation of seawater and silica uptake by diatoms"
   Rapid Commun. Mass Spectrom. 23, 698-704 (2009).
10. H. Haba, H. Kikunaga, D. Kaji, T. Akiyama, K. Morimoto, K. Morita, T. Nanri, K. Ooe, N. Sato, A. Shinohara, D. Suzuki, T. Takabe, I. Yamazaki, A. Yokoyama, and A. Yoneda:
    "Performance of the gas-jet transport system coupled to the RIKEN gas-filled recoil ion separator GARIS for the 238U(22Ne,5n)255No reaction"
    J. Nucl. Radiochem. Sci. 9, 27-31 (2008).