Noble gas line profiles in dense plasmas. II. Krypton and xenon

1987 ◽  
Vol 20 (24) ◽  
pp. 6493-6506 ◽  
Author(s):  
Y Viteal ◽  
M Skowronek
Keyword(s):  
Noble Gas ◽  
Line Profiles ◽  
Dense Plasmas

Noble gas line profiles in dense plasmas. I. Argon

1987 ◽  
Vol 20 (24) ◽  
pp. 6477-6491 ◽  
Author(s):  
Y Vitel ◽  
M Skowronek
Keyword(s):  
Noble Gas ◽  
Line Profiles ◽  
Dense Plasmas

Effect of nearest-neighbor ions on excited ionic states, emission spectra, and line profiles in hot and dense plasmas

1991 ◽  
Vol 44 (2) ◽  
pp. 1270-1280 ◽  
Author(s):  
D. Salzmann ◽  
J. Stein ◽  
I. B. Goldberg ◽  
R. H. Pratt
Keyword(s):  
Nearest Neighbor ◽  
Emission Spectra ◽  
Line Profiles ◽  
Dense Plasmas ◽  
Ionic States

scholarly journals Spectroscopic analysis of hot dense plasmas: A focus on ion dynamics

1996 ◽  
Vol 14 (4) ◽  
pp. 713-730 ◽  
Author(s):  
C.F. Hooper ◽  
D.A. Haynes ◽  
D.T. Garber ◽  
R.C. Mancini ◽  
Y.T. Lee ◽  
...  
Keyword(s):  
Spectroscopic Analysis ◽  
Standard Theory ◽  
Combined Effects ◽  
Ion Dynamics ◽  
Line Profiles ◽  
Line Broadening ◽  
Dense Plasmas ◽  
Plasma Line ◽  
On Line ◽  
The University

A brief discussion of the standard theory of line broadening is presented together with an analysis of selected laser-driven implosion experiments. The effect of improved theoretical procedures on experimental analysis is discussed. In particular, we consider the combined effects of ion dynamics and opacity on line profiles used in the analysis of these plasmas. The experiments discussed were performed at the University of Rochester Laboratory for Laser Energetics (LLE). The results presented in this paper illustrate the usefulness of plasma line broadening in diagnosing hot dense plasmas and in understanding fundamental plasma processes.

scholarly journals Line shape modeling of multielectron ions in plasmas

2000 ◽  
Vol 18 (2) ◽  
pp. 275-289 ◽  
Author(s):  
P.A. LOBODA ◽  
I.A. LITVINENKO ◽  
G.V. BAYDIN ◽  
V.V. POPOVA ◽  
S.V. KOLTCHUGIN
Keyword(s):  
Line Profile ◽  
Theoretical Data ◽  
Line Profiles ◽  
Plasma Diagnostic ◽  
Radiative Relaxation ◽  
Line Radiation ◽  
Dense Plasmas ◽  
Radiation Spectra ◽  
Calculated Line ◽  
Ionic States

A density-matrix theoretical model to calculate spectral line profiles of general multielectron ions in plasmas is described. The line-profile calculation involves electron collisional and radiative relaxation of ionic states, the emitter's motion (Doppler effect) and its interaction with a quasi-static ion microfield. Using the LineDM computer package implementing this model, line-profile calculations of the K- and L-shell transitions in Al XII, Ar XVII, Ar XVI, Cu XX, and Xe XLV ions have been performed in the context of plasma diagnostic issues of recent laboratory experiments. Comparisons of the calculated line profiles with experimental and other theoretical data show the applicability of the model and package for the detailed computational analysis of line radiation spectra from multielectron emitters in hot dense plasmas.

Structuring, Motions and Shapes of Corona Emission Line Profiles

1994 ◽  
Vol 144 ◽  
pp. 421-426
Author(s):  
N. F. Tyagun
Keyword(s):  
Emission Line ◽  
Filling Factor ◽  
Direct Relationship ◽  
Coronal Plasma ◽  
Line Of Sight ◽  
Line Profiles ◽  
The Difference ◽  
Yellow Line ◽  
Red Line

AbstractThe interrelationship of half-widths and intensities for the red, green and yellow lines is considered. This is a direct relationship for the green and yellow line and an inverse one for the red line. The difference in the relationships of half-widths and intensities for different lines appears to be due to substantially dissimilar structuring and to a set of line-of-sight motions in ”hot“ and ”cold“ corona regions.When diagnosing the coronal plasma, one cannot neglect the filling factor - each line has such a factor of its own.

Effects of Ambipolar Diffusion on Prominence Thread Models

1994 ◽  
Vol 144 ◽  
pp. 315-321 ◽  
Author(s):  
M. G. Rovira ◽  
J. M. Fontenla ◽  
J.-C. Vial ◽  
P. Gouttebroze
Keyword(s):  
Energy Balance ◽  
Transition Region ◽  
Ambipolar Diffusion ◽  
Line Profiles ◽  
Balance Equations ◽  
Model Calculations ◽  
Partial Frequency ◽  
Frequency Redistribution ◽  
Partial Frequency Redistribution ◽  
Theoretical Structure

AbstractWe have improved previous model calculations of the prominence-corona transition region including the effect of the ambipolar diffusion in the statistical equilibrium and energy balance equations. We show its influence on the different parameters that characterize the resulting prominence theoretical structure. We take into account the effect of the partial frequency redistribution (PRD) in the line profiles and total intensities calculations.

The Interpretation of Line Profiles

1977 ◽  
Vol 36 ◽  
pp. 191-215
Author(s):  
G.B. Rybicki
Keyword(s):  
Magnetic Fields ◽  
Atomic Physics ◽  
Velocity Fields ◽  
Spectral Lines ◽  
Inhomogeneous Structure ◽  
The Sun ◽  
Line Profiles ◽  
Physical Phenomena

Observations of the shapes and intensities of spectral lines provide a bounty of information about the outer layers of the sun. In order to utilize this information, however, one is faced with a seemingly monumental task. The sun’s chromosphere and corona are extremely complex, and the underlying physical phenomena are far from being understood. Velocity fields, magnetic fields, Inhomogeneous structure, hydromagnetic phenomena – these are some of the complications that must be faced. Other uncertainties involve the atomic physics upon which all of the deductions depend.

Dielectronic Recombination in the Average-Atom Model

1988 ◽  
Vol 102 ◽  
pp. 215
Author(s):  
R.M. More ◽  
G.B. Zimmerman ◽  
Z. Zinamon
Keyword(s):  
Detailed Balance ◽  
Systematic Errors ◽  
Dielectronic Recombination ◽  
Rate Equations ◽  
Strong Correlations ◽  
Dense Plasmas ◽  
Atom Model ◽  
New Feature ◽  
Average Atom Model ◽  
Attachment Process

Autoionization and dielectronic attachment are usually omitted from rate equations for the non–LTE average–atom model, causing systematic errors in predicted ionization states and electronic populations for atoms in hot dense plasmas produced by laser irradiation of solid targets. We formulate a method by which dielectronic recombination can be included in average–atom calculations without conflict with the principle of detailed balance. The essential new feature in this extended average atom model is a treatment of strong correlations of electron populations induced by the dielectronic attachment process.

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