Centers & Labs

RIKEN Nishina Center for Accelerator-Based Science

Research Instruments Group

Group Director: Tomohiro Uesaka (D.Sci.)
Tomohiro  Uesaka(D.Sci.)

The research instruments group is the driving force at RI Beam Factory (RIBF) for continuous enhancement of activities and competitiveness of experimental research. Consisting of four teams, we are in charge of the construction, operation and improvement of the core research instruments at RIBF, such as BigRIPS in-flight separator, ZeroDegree spectrometer and SAMURAI spectrometer, and the related infrastructure and equipment. We are also in charge of the production and delivery of RI beams using the BigRIPS separator. The group also conducts related experimental research as well as R&D studies on the research instruments.

Main Research Field

Mathematical and physical sciences

Related Research Fields



  • Experimental Nuclear Physics
  • Radioactive-Isotope Beam
  • Nuclear Reaction
  • Particle & Nuclear Radiation Detector
  • Signal & Data Processing


Contact information

315 Nishina RIBF Building,
2-1 Hirosawa,
Wako, Saitama
351-0198, Japan

Email: uesaka [at]