[19p-S322-1~14] 1.5 Instrumentation, measurement and Metrology

[19p-S322-13] Development of a New Type Mass Analyzer introducing Two Rotating Electric Fields

〇Masanao Hotta¹, Masashi Nojima², Satoshi Kurumi³, Kaoru Suzuki³, Tatsuya Adachi⁴, Takashi Kusanagi⁴, Kousuke Moritani⁵ (1.Office TANDEM L.L.C., 2.Tokyo University of Science, 3.NIHON UNIVERSITY, 4.Ampere Inc., 5.UNIVERSITY OF HYOGO)

Keywords:mass analyzer,rotating electric field

A new type of mass analyzer introducing two electrodynamic fields is described. An ion beam is injected into the analyzer which has two rotating electric field units lined in coaxial manner, where the period of electric field rotation is chosen to be equal to the transit time of an ion having mass of interest (specified mass ion). Leaving the analyzer, specified mass ions, without reference to mass value, travel along the central axis, whereas other ions travel apart from the central axis tracing hollow cones, thus enabling continuous mass analysis. The above physical phenomena make the analyzer to have an extremely wide mass range, despite its hand-held body.