Laboratories
RI Applications Team
Hiromitsu HABA
Laboratory Head
Hiromitsu HABA (D.Sci.)
mail

Research Areas

RI Applications Team performs following researches at the heavy ion accelerators of RIBF: (1) With protons from the RIKEN AVF Cyclotron, we produce radioisotopes for research of chemistry, biology, medicine, pharmaceutical and environmental sciences. The nuclides 65Zn, 109Cd and 88Y are delivered to Japan Radioisotope Association for fee-based distribution. We also study the production and application of short-lived RI's. (2) We 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.

Research Subject

  1. Production of radioisotopes at AVF cyclotron
  2. Improvement of production procedures and R/D for new isotope production
  3. The development of trace element analysis, using the accelerator techniques, and its application to geo and environmental sciences

Related links

  1. RIKEN Nishina Center for Accelerator-Based Science Website_Laboratories PageNew Window

List of Selected Publications

  1. Masanori Kidera, Kazuya Takahashi, Shuichi Enomoto, Youhei Mitsubori, Akira Goto and Yasushige Yano:
    "Development of novel mass spectrometer equipped with ECRIS"
    European Journal of Mass Spectrometry, 13, 239-248 (2007)
  2. K. Takahashi and M. Tanaka:
    "The Chemical behavior of silica in water in saline area; comparison for region and evaporation process"
    Spectrochimica Acta part A, 68, 21-28 (2007)
  3. Masanori Kidera, Kazuya Takahashi, Shuichi Enomoto, Akira Goto and Yasushige Yano:
    "New fragment ion production method using super cold electrons in electron cyclotron resonance plasma"
    European Journal of Mass Spectrometry, 13, 355-358 (2007)
  4. M. Tanaka, K. Takahashi and Y. V. Sahoo:
    "Speciation of dissolved silicates in natural waters containing alkaline and alkaline-earth ions; A case study-waters from arid lands (North West China)"
    Analytical and Bioanalytical Chemistry, 378, 789-797(2004)
  5. K. Takahashi and M. Tanaka:
    "The identification and characterization of silicate complexes in calcium chloride solution using FAB-MS"
    Analytica Chimica Acta, 411, 109-119 (2000)
  6. A. Kawashima, K. Takahashi and A. Masuda:
    "Geochemical estimation of the half-life for the double beta decay of 96-Zr"
    Physical Review C, 47, R2452-R2456 (1993)
  7. K. Takahashi and A. Masuda:
    "A young age of two diogenites and its genetic implication"
    nature, 343, 540-542 (1990)
  8. M. Tanaka and K. Takahashi:
    "Estimation of silica species' concentrations in lithium and magnesium chloride solutions from the peak intensities observed by FAB-MS"
    Journal of Solution Chemistry, 37, 1187-1195 (2008)
  9. K. Takahashi, M. Tanaka, T. Urabe, T. Oikawa, M. Nemoto, 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 Communications in Mass Spectrometry, 23, 698-704 (2009)

Members

Principal Investigator

Hiromitsu HABA
Laboratory Head

Staff Scientist

Kazuya TAKAHASHI
Senior Research Scientist

Technical Assistant

Jumpei KANAYA
Technical Staff 1