国際会議 2019年12月 Small sample graphitization for $^{14}$C dating using EA-AGE3 at JAEA-AMS-TONO 8th East Asia Accelerator Mass Spectrometry Symposium (EA-AMS 8) Watanabe, Takahiro, Kokubu, Yoko, Fujita, Natsuko, Ishizaka, Chika, Nishio, Tomohiro, Matsubara, Akihiro, Miyake, Masayasu, Isozaki, Nobuhiro, Nishizawa, Akimitsu 記述言語 英語 会議種別