〇Wataru Kada¹, Koki Usui¹, Ryota Kikuchi¹, Takahiro Imayoshi¹, Sota Nakatsu¹, Kimiyo Kumagai², Hiroshi Tago², Takahiro Satoh³, Yasuyuki Ishii³, Osamu Hanaizumi¹ (1.Gunma Univ., 2.Gunma Prefectural Institute of Public Health and Environmental Sciences, 3.TARRI, QST)

〇Atsuki Terakawa¹, Yoshitaka Hattori¹, Mitsuyoshi Sato², Keizo Ishii¹, Masashi Koka³, Naoto Yamada³, Ryohei Yamagata³, Yasuyuki Ishii³, Takahiro Satoh³, Naoki Kawachi³ (1.CYRIC, Tohoku Univ., 2.Eng. Tohoku Univ., 3.Takasaki Inst. QST)

〇Naoto Hagura¹ (1.TCU)

〇Mirei Takeyama¹, Toru Moriya¹, Hirohisa Sakurai², Hiroko Miyahara³, Motonari Ohyama⁴, Hisako Saitoh⁵, Fuyuki Tokanai^1,2 (1.Yamagata Univ. Center for AMS, 2.Yamagata Univ., 3.Musashino Art Univ., 4.Tohoku Univ., 5.Chiba Univ.)

〇Takeyasu Yamagata¹, Hiroyuki Matsuzaki¹, Hironori Tokuyama¹, Yoko Tsuchiya¹, Miwako Toya¹ (1.The Univ. of Tokyo)

〇(DC)Li Zheng¹, Hiroyuki Matsuzaki¹, Takeyasu Yamagata¹ (1.Tokyo Univ.)

〇Satoshi Jinno¹, Akihiro Matsubara¹, Natsuko Fujita¹, Kenji Kimura¹ (1.JAEA)

〇Kimikazu Sasa^1,2, Tsutomu Takahashi¹, Daisuke Shiine², Masumi Matsumura¹, Aya Sakaguchi² (1.UTTAC, 2.Univ. Tsukuba)

〇Hiroyuki Matsuzaki¹, Shoya Hanazawa², Miwako Toya¹, Kazuho Horiuchi³, Hideaki Motoyama⁴ (1.MALT Tokyo Univ., 2.Eng. Tokyo Univ., 3.Hirosaki Univ., 4.Polar Research Inst.)

〇Fusa Miyake¹, Masataka Hakozaki², Katsuhiko Kimura³, Fuyuki Tokanai⁴, Toshio Nakamura¹, Mirei Takeyama⁴, Toru Moriya⁴ (1.Nagoya Univ., 2.National Museum of Japanese History, 3.Fukushima Univ., 4.Yamagata Univ.)