Hannover 2016 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 30: Precision spectroscopy of atoms and ions (with Q)
A 30.16: Poster
Mittwoch, 2. März 2016, 16:30–19:00, Empore Lichthof
Development of a high resolution VUV grating spectrometer — •Stepan Dobrodey1, Michael A. Blessenohl1, Sven Bernitt1,2, Laurent Mercadier3, Clemens Weninger4, Nina Rohringer4, and José R. Crespo López-Urrutia1 — 1Max-Planck-Institut für Kernphysik, Heidelberg, Germany — 2IOQ, Friedrich-Schiller-Universität, Jena, Germany — 3Centre for Free-Electron Laser Science, Hamburg, Germany — 4Max-Planck-Institut für Struktur und Dynamik der Materie, Hamburg, Germany
We present the design and development of a high resolution normal incidence grating spectrometer for the VUV range. First successful measurements have been carried out at the free-electron laser (FEL) FLASH in Hamburg to study the lasing activity of atomic transitions in xenon and krypton after inner-shell excitation with FEL pulses. With an achieved resolving power of 50000 this instrument will be utilized in the near future for observations of transitions in the VUV range in highly charged ions produced in an electron beam ion trap. This will allow for better understanding of astrophysical processes and tests of fundamental theories.