Performance of a short "magnetic bottle" electron spectrometer

Mucke, MelanieEURATOM, Max Planck Inst Plasmaphys, D-85748 Garching, Germany. (författare)

In this article, a newly constructed electron spectrometer of the magnetic bottle type is described. The instrument is part of an apparatus for measuring the electron spectra of free clusters using synchrotron radiation. Argon and helium outer valence photoelectron spectra have been recorded in order to investigate the characteristic features of the spectrometer. The energy resolution (E/Delta E) has been found to be similar to 30. Using electrostatic retardation of the electrons, it can be increased to at least 110. The transmission as a function of kinetic energy is flat, and is not impaired much by retardation with up to 80% of the initial kinetic energy. We have measured a detection efficiency of most probably 0.6(-0.1)(+0.05), but at least of 0.4. Results from testing the alignment of the magnet, and from trajectory simulations, are also discussed. [http://dx.doi.org/10.1063/1.4729256]

Foerstel, M.EURATOM, Max Planck Inst Plasmaphys, D-85748 Garching, Germany.;Max Planck Inst Kernphys, D-69117 Heidelberg, Germany. (författare)
Lischke, T.EURATOM, Max Planck Inst Plasmaphys, D-85748 Garching, Germany. (författare)
Arion, T.EURATOM, Max Planck Inst Plasmaphys, D-85748 Garching, Germany. (författare)
Bradshaw, A. M.EURATOM, Max Planck Inst Plasmaphys, D-85748 Garching, Germany.;Max Planck Gesell, Fritz Haber Inst, D-14195 Berlin, Germany. (författare)
Hergenhahn, U.EURATOM, Max Planck Inst Plasmaphys, Teilinst Greifswald, D-17491 Greifswald, Germany. (författare)
EURATOM, Max Planck Inst Plasmaphys, D-85748 Garching, Germany.EURATOM, Max Planck Inst Plasmaphys, D-85748 Garching, Germany.;Max Planck Inst Kernphys, D-69117 Heidelberg, Germany. (creator_code:org_t)

Av författaren/redakt...: Mucke, Melanie; Foerstel, M.; Lischke, T.; Arion, T.; Bradshaw, A. M.; Hergenhahn, U.

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