Original Article
Construction of a Newly Designed Small-Size Mass Spectrometer for Helium Isotope Analysis: Toward the Continuous Monitoring Of 3He/4He Ratios In Natural Fluids
Ken-ichi Bajo, Hirochika Sumino, Michisato Toyoda, Ryuji Okazaki, Takahito Osawa, Morio Ishihara, Itsuo Katakuse, Kenji Notsu, George Igarashi, Keisuke Nagao