Dresden 2011 – wissenschaftliches Programm

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MO: Fachverband Molekülphysik

MO 7: Poster: Cluster

MO 7.3: Poster

Montag, 14. März 2011, 16:00–18:00, P1

First evaluation of a new resolution enhancement method for the Magnetic Bottle Photoelectron Spectrometer (PES) — •Moritz Weigt and Bernd von Issendorff — Universität Freiburg, FMF, Stefan-Meier-Str. 21, 79106 Freiburg

We have developed a new method for improving the resolution of the magnetic bottle type photoelectron spectrometer. By applying a well defined time-variable voltage to a part of the flight tube, electrons of equal energy are time focused in the detector plane. This works for all energies in the relevant range (0 - 10 eV) without affecting linearity of the energy measurement. Simulations show that the new setup is theoretically capable of 1/1000 energy resolution. We will present first measurements evaluating the potential of the method under real conditions.