Influence of Helical Trajectories of Perturbers on Stark Line Shapes in Magnetized Plasmas

In plasmas subject to a strong magnetic field, the dynamical properties of the microfield are affected by the cyclotron motion, which can alter Stark-broadened lines. We illustrate this effect through calculations of the hydrogen Lyman α line in an ideal one-component plasma. A focus is put on the c...

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Bibliographic Details
Published inAtoms Vol. 6; no. 1; p. 12
Main Authors Rosato, J., Ferri, S., Stamm, R.
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.03.2018
MDPI
Subjects
Atomic Physics
Autocorrelation functions
Computer simulation
cyclotron motion
Cyclotrons
Line broadening
Magnetic properties
magnetized plasmas
numerical simulations
Physics
Plasma Physics
Plasmas
Stark broadening
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Summary:In plasmas subject to a strong magnetic field, the dynamical properties of the microfield are affected by the cyclotron motion, which can alter Stark-broadened lines. We illustrate this effect through calculations of the hydrogen Lyman α line in an ideal one-component plasma. A focus is put on the central Zeeman component. It is shown that the atomic dipole autocorrelation function decreases more slowly if the cyclotron motion is retained. In the frequency domain, this denotes a reduction of the line broadening. A discussion based on numerical simulations and analytical estimates is done.
Bibliography:ObjectType-Article-1
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content type line 14
ISSN:2218-2004
2218-2004
DOI:10.3390/atoms6010012