9:45 AM - 10:00 AM
*Masaki Nakazato1, Hisashi Asanuma1,2, Sota Niki1, Hideki Iwano1,3, Takafumi Hirata1 (1.The University of Tokyo, Graduate School of Science, 2.The University of Tokyo, Atmosphere and Ocean Research Institute, 3.Kyoto Fission-Track Co.)