title: Radio-frequency ion deflector for mass separation.
abstract: Electrostatic cylindrical deflectors act as energy analyzer for ion beams. In this article, we present that by imposing of a radio-frequency modulation on the deflecting electric field, the ion transmission becomes mass dependent. By the choice of the appropriate frequency, amplitude, and phase, the deflector can be used as mass filter. The basic concept of the new instrument as well as simple mathematic relations are described. These calculations and further numerical simulations show that a mass sensitivity is achievable. Furthermore, we demonstrate the proof-of-principle in experimental measurements, compare the results to those of from a 1 m linear time-of-flight spectrometer, and comment on the mass resolution of the method. Finally, some potential applications are indicated.
authors.affiliation: Unidad de Láseres y Haces Moleculares, Instituto Plurisdisciplinar, Universidad Complutense de Madrid, Madrid 28040, Spain.
authors.forename: Magnus
authors.initials: M
authors.lastname: Schlösser
authors.affiliation: Unidad de Láseres y Haces Moleculares, Instituto Plurisdisciplinar, Universidad Complutense de Madrid, Madrid 28040, Spain.
authors.forename: Vitaly
authors.initials: V
authors.lastname: Rudnev
authors.affiliation: Unidad de Láseres y Haces Moleculares, Instituto Plurisdisciplinar, Universidad Complutense de Madrid, Madrid 28040, Spain.
authors.forename: Ángel
authors.initials: Á
authors.lastname: González Ureña
mesh_terms: D003198:Computer Simulation; D004867:Equipment Design; D007477:Ions; D013058:Mass Spectrometry / Q000295:instrumentation* / Q000379:methods; D008962:Models, Theoretical; D011846:Radio Waves; D055672:Static Electricity
chemical_list: D007477:Ions