4:30 PM - 4:45 PM
*Yuta Shimoyama1, Hidenori Terasaki1, Satoru Urakawa2, Yusaku Takubo1, Tetsu Watanuki3, Akihiko Machida3, Yoshinori Katayama3, Tadashi Kondo1 (1.Dept. Earth&Space Science, Osaka University, 2.Graduate School of Natural Science and technology, Okayama University,, 3.Natural Institutes for Quantum and Radiological Science and Technology)