Kotoyo Hoshina (Earthquake Research Institute, the University of Tokyo)
For more than 30 years, the idea of probing the interior of the Earth with neutrinos has been discussed. Of all the matter that exists on Earth, only neutrinos can penetrate the maximum thickness of the Earth. Some neutrinos interact with atoms deep inside the Earth where we cannot sample the material. They provide information about the matter density or the electron density of materials along...