Hannover 2010 – wissenschaftliches Programm
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MS: Fachverband Massenspektrometrie
MS 8: Poster
MS 8.7: Poster
Donnerstag, 11. März 2010, 16:00–18:00, Lichthof
A multi-passage spectrometer for charge-state separation at MLLTRAP [*] — •Christine Weber1, Eva Gartzke1, Dietrich Habs1, Veli Kolhinen2, Kevin Krug1, Jerzy Szerypo1, and Peter Thirolf1 — 1Fakultät für Physik, LMU - München — 2Department of Physics, University of Jyväskylä
MLLTRAP is a Penning trap mass spectrometer facility which is currently being commissioned at the Maier-Leibnitz Tandem Accelerator Laboratory in Garching. Here, atomic mass values are determined by comparison of cyclotron frequencies, ωc = qB/m, of stored ions with mass m and charge q in a strong magnetic field B, relative to those of well-known ion species. One of the future goals of MLLTRAP is to utilize highly-charged ions for an improvement in the achievable mass accuracy δ m/m. For this purpose, singly-charged ions will have to be injected into a charge-breeding device, such as an EBIT, and transferred back towards the Penning traps, while being q/A selected. A multi-passage-spectrometer (MPS) is being built to fulfill these tasks. It consists of a fast-ramping, round-pole dipole magnet with a four-way electrostatic mirror system [2]. In this presentation, the planned MLLTRAP setup focussing on the q/A-selection with the MPS system will be presented.
[1] V.S. Kolhinen et al., Nucl. Instr. and Meth. A 600 (2009) 391.
[2] A. Lakatos, Diploma Thesis, University of Frankfurt (1992).
[*] Supported by the DFG under contract HA 1101/14-1 and MLL.