Zeitschrift für Naturforschung A · 1975 · 16 citations · 0 references
Natural SciencesPhysicsAcousticsSpectroscopic AnalysisSpectroscopyAtomic SpectraHydrogen AtomSpectral RadiationStark EffectDynamic Stark EffectHydrogen Atom SpectrumHydrogen Stark EffectNeutral Hydrogen EmissionNonperturbative Stark EffectStark Effect In AtomsStark SpectroscopyTurbulent Heating
Abstract A theory is given for the spectral profile of the first hydrogen Balmer line when the radiating neutral atom is under influence of both (quasi-) static and harmonically oscillating electric fields. Profiles, measured in a turbulent heating experiment, show a series of intensity maxima on the wings of the Balmer lines. If we assume a model for the spatial distribution of turbulent wave vectors, we can derive the fieldstrength and the direction of low-frequency (ion-acoustic) oscillations and the strength and frequency of high-frequency (Langmuir) oscillations.