Augsburg 2006 – scientific programme

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P: Plasmaphysik

P 15: Diagnostik 2; Niedertemperaturplasmen / Plasmatechnologie 5; Plasma-Wand Wechselwirkung 1

P 15.27: Poster

Tuesday, March 28, 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)