Hannover 2016 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 4: Collisions, scattering and correlation phenomena I

A 4.4: Vortrag

Montag, 29. Februar 2016, 11:45–12:00, f107

Setup of a high-resolution Seya-Namioka-type fluorescence spectrometer for the spectral range between 35 nm and 180 nm for experiments at ion storage rings — •Philipp Reiß, Philipp Schmidt, Christian Ozga, André Knie, and Arno Ehresmann — University of Kassel, Institute of Physics and CINSaT, Heinrich-Plett-Str. 40, 34132 Kassel

A Seya-Namioka type spectrometer for the detection of highly resolved dispersed fluorescence in the wavelength range between 35 nm and 180 nm for experiments at gas- and electron targets and electron coolers at the FAIR facility will be set up. Depending on the experimental requirements, optical reflection gratings with a short focus (f = 1 m) for a higher solid angle coverage of the emitted fluorescence and a resolution of Δλ = 0.3 nm or a grating with a long focus (f = 3 m) for high resolution (Δλ = 0.1 nm) will be used. The pursued high resolution will enable the determination of the degree of ionization as well as the radiative states of excited ions via their emitted fluorescence wavelengths and thus help answering a variety of scientific questions. A characterization of the gas target or the longitudinal ion bunch profiles is also possible.