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P: Plasmaphysik
P 15: Diagnostik 2; Niedertemperaturplasmen / Plasmatechnologie 5; Plasma-Wand Wechselwirkung 1
P 15.27: Poster
Dienstag, 28. März 2006, 17:00–19:00, Flure
Assessment of Emission Spectroscopy for the Reconstruction of the Electron Temperature — •Dirk Dodt1, Andreas Dinklage1, and Rainer Fischer2 — 1Max-Planck-Institut für Plasmaphysik, Teilinstitut Greifswald — 2Max-Planck-Institut für Plasmaphysik, Teilinstitut Garching
The line emission from the plasma in a neon glow discharge is investigated. Since electron collisions are the main excitation mechanism, the measured intensities of the spectral lines give information about the electron energy distribution function (EEDF).
In a first step, a stationary collisional-radiative model is used to fit the electron temperature to the measured line emissions. The fit is performed by means of Bayesian data analysis [1], which involves the description of the error statistics of all input parameters and measured quantities.
[1] R.Fischer, V.Dose, Plasma Phys. Contr. Fusion 41, p. 1109 (1999)