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The Institute for Cosmic Ray Research (ICRR) of the University of Tokyo (東京大学宇宙線研究所 Tōkyōdaigaku Uchūsen Kenkyūsho) was established in 1976 for the study of cosmic rays.[1]

The gravitational wave studies group is currently constructing the detector KAGRA located at the Kamioka Observatory.[2]



Current projectsEdit

  • Super-Kamiokande - Detection of neutrinos and search for proton decays in a large water tank[3]
  • Tibet - Search for point sources of VHE cosmic gamma rays at Tibet heights
  • Telescope Array Project - Aiming at highest energy cosmic ray physics by detecting weak light from atmosphere[4]
  • Gravitational Wave Group - Constructing the gravitational wave detector KAGRA
  • Observational Cosmology Group - Subaru Hyper Suprime-Cam Survey
  • Theory Group - Theoretical studies for verifying Grand Unified Theory and early Universe
  • High Energy Astrophysics Group - Theoretical studies for pulsars, gamma-ray bursts, AGNs, acceleration mechanisms of particles etc.


  1. ^ ICRR / About ICRR
  2. ^ "KAGRA observatory".
  3. ^ "Repairs on damaged neutrino detector to be completed in mid-April." Japan Science Scan 10 April 2006
  4. ^ "New Ground-Based Arrays to Probe Cosmic Powerhouses" By Dennis Normile Science 30 April 1999: 734-735

External linksEdit