Erlangen 2018 – wissenschaftliches Programm

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P: Fachverband Plasmaphysik

P 17: Atmospheric Pressure Plasmas - Poster

P 17.9: Poster

Mittwoch, 7. März 2018, 16:15–18:15, Zelt Ost

End on spectrometric analysis of a Plasma Windows arc discharge — •Marius Dehmer, Bernhard Bohlender, Andre Michel, Marcus Iberler, and Joachim Jacoby — Goethe Universität Frankfurt, IAP, AG Plasmaphysik

The Plasma Window is a membrane free device for transmission between two different pressure ranges allowing particles to pass through. It was originally patented by A. Hershcovitch in the 1990's*. The group of Prof. Dr. Jacoby at Goethe University Frankfurt picked up his idea and has been working on an own prototype to full fill the requirements of FAIR near Darmstadt.

A Plasma Window consists of a wall stabilized arc discharge connection two regmies of different pressure. Its temperature and electron density correspond with the sealing effects of this device**. Therefore knowledge of these parameters is important. Situated in the early stages of the project, spectroscopy was realized end on the plasma window from the cathode side for estimations of the electron temperature. Furthermore electron density and the arcs composition were determined.

Additionally radial spectrometry along the discharge axis is currently in progress by Mr. A. Michel. Both Mr. A. Michels and Mr. B. Bohlenders work, who focuses on the setup of the Plasma Window, will be presented at this conference. * Hershcovitch, A. J. Appl. Phys., AIP Publishing, 1995, 78, 5283 ** Krasik, Y. E.; Gleizer, S.; Gurovich, V.; Kronhaus, I.; Hershcovitch, A.; Nozar, P. & Taliani, C. J. Appl. Phys., AIP Publishing, 2007, 101, 053305