Darmstadt 2008 – scientific programme

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MS: Fachverband Massenspektrometrie

MS 9: Poster

MS 9.6: Poster

Wednesday, March 12, 2008, 16:30–18:30, Poster C2

An electrostatic storage device for mass separation and contamination removal at ISOLTRAP — Markus Eritt¹, •Robert Wolf¹, Martin Breitenfeldt¹, Alexander Herlert², Gerrit Marx¹, and Lutz Schweikhard¹ — ¹Inst. f. Physik, Ernst-Moritz-Arndt-Universität, D-17489 Greifswald — ²Physics Department, CERN, 1211 Geneva 23, Switzerland

Electrostatic ion beam devices are known for their capability to achieve mass spectral resolving powers in the order of m/Δ m >10⁵. Thereby bunches of ions with different mass-over-charge ratios can be separated during their repeated oscillation between two electrostatic mirrors. The method of operation is similar to a time of flight distance of several hundred meters that is folded to less than one meter. We plan to make use of this concept and to build a device based on Electrostatic Ion Beam Trap design of the Weizmann Institute in order to physically separate isobaric ions as a preparatory step of the ISOLTRAP at CERN/Geneva. In a test setup at Greifswald it will be attempted to separate CO and N₂ ions. Status, first measurements and aimed objectives of the test apparatus will be presented. The project is funded by the BMBF.