Results 31 to 40 of about 92,694 (289)

Line Shape Modeling for the Diagnostic of the Electron Density in a Corona Discharge

open access: yesAtoms, 2017
We present an analysis of spectra observed in a corona discharge designed for the study of dielectrics in electrical engineering. The medium is a gas of helium and the discharge was performed at the vicinity of a tip electrode under high voltage.
Joël Rosato   +3 more
doaj   +1 more source

From the Vector to Scalar Perturbations Addition in the Stark Broadening Theory of Spectral Lines

open access: yesUniverse, 2021
The effect of plasma Coulomb microfied dynamics on spectral line shapes is under consideration. The analytical solution of the problem is unachievable with famous Chandrasekhar–Von-Neumann results up to the present time.
Valery Astapenko   +2 more
doaj   +1 more source

Stark Broadening of the B III 2s-2p Lines [PDF]

open access: yes, 1997
We present a quantum-mechanical calculation of Stark line widths from electron-ion collisions for the $2s_{1/2}-2p_{1/2,3/2}$, lambda = 2066 and 2067 A, resonance transitions in B III.
A. K. Pradhan   +36 more
core   +2 more sources

Stark Widths of Ar II Spectral Lines in the Atmospheres of Subdwarf B Stars

open access: yesAtoms, 2017
Stark broadening parameters are of interest for many problems in astrophysics and laboratory plasmas investigation. Ar II spectral lines are observed in many kinds of stellar atmospheres such as the atmospheres of B-Type stars and subdwarf B stars.
Rafik Hamdi   +3 more
doaj   +1 more source

Stark broadening of N II spectral lines [PDF]

open access: yesSerbian Astronomical Journal
The Stark broadening parameters, widths, and shifts, for spectral lines within the 45 N II multiplets, were calculated for collisions with electrons, protons and helium ions, by using the semiclassical perturbation method. The obtained data were
Dimitrijević Milan S.   +2 more
doaj   +1 more source

Stark broadening parameter tables for Kr II lines [PDF]

open access: yesSerbian Astronomical Journal, 2000
In order to provide the Stark broadening data for ion lines from complex spectra, here we present calculated Stark widths and shifts for 37 Kr II lines. The calculations were performed by using the modified semiempirical approach.
Popović L.Č., Dimitrijević M.S.
doaj   +1 more source

On the Stark broadening of Ru III spectral lines [PDF]

open access: yesBulletin of Natural Sciences Research, 2021
Stark broadening parameters, full widths at half maximum (FWHM) and shifts for spectral lines within six multiplets of doubly charged ruthenium ions have been calculated, for an electron density of 10 17 cm-3 and temperature range from 10 000 K to 160 ...
Dimitrijevć Milan S.
doaj   +1 more source

Stark Broadening of Sn III Spectral Lines of Astrophysical Interest: Predictions and Regularities [PDF]

open access: yes, 2011
The determination of the Stark broadening parameters of Sn ions is useful for astrophysicists interested in the determination of the density of electrons in stellar atmospheres.
Alonso Medina, Aurelia   +1 more
core   +2 more sources

Stark Widths of Yb III and Lu IV Spectral Lines

open access: yesAtoms, 2019
Rare Earth Elements are important for stellar atmosphere analysis but the corresponding Stark broadening data are scarce. For Yb III and Lu IV theoretical as well as experimental data on Stark broadening parameters of spectral lines are absent in the ...
Milan S. Dimitrijević
doaj   +1 more source

Photoreflectance and surface photovoltage spectroscopy of beryllium-doped GaAs/AlAs multiple quantum wells [PDF]

open access: yes, 2005
We present an optical study of beryllium delta-doped GaAs/AlAs multiple quantum well (QW) structures designed for sensing terahertz (THz) radiation.
B. Čechavičius   +12 more
core   +1 more source

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