Spectral lines behavior of Be I and Na I isoelectronic sequence in Debye plasma environment

2012 ◽  
Vol 19 (8) ◽  
pp. 082701 ◽  
Author(s):  
Rajat K. Chaudhuri ◽  
Sudip Chattopadhyay ◽  
Uttam Sinha Mahapatra
Keyword(s):  
Spectral Lines ◽  
Isoelectronic Sequence ◽  
Plasma Environment ◽  
Debye Plasma

scholarly journals On the Appearance of a Cooper Minimum in the Photoionization Cross Sections of the Plasma-Embedded Li Atom

2009 ◽  
Vol 2009 ◽  
pp. 1-5 ◽  
Author(s):  
Satyabrata Sahoo ◽  
Y. K. Ho
Keyword(s):  
Cross Sections ◽  
Ground State ◽  
Debye Screening Length ◽  
Debye Screening ◽  
Screening Length ◽  
Screening Effect ◽  
Plasma Environment ◽  
Plasma Screening ◽  
Debye Plasma

The plasma screening effect is found to uncover a Cooper minimum in the photoionization cross sections from the ground state of the Li atom embedded in Debye plasma environment. The variation of the location of this minimum with Debye screening length is discussed and analyzed in terms of the instability of the ground state.

Stark broadening of spectral lines along the isoelectronic sequence of Li

1992 ◽  
Vol 45 (12) ◽  
pp. 8795-8802 ◽  
Author(s):  
S. Glenzer ◽  
N. I. Uzelac ◽  
H.-J. Kunze
Keyword(s):  
Spectral Lines ◽  
Stark Broadening ◽  
Isoelectronic Sequence

Plasma broadening and shifting of spectral lines along the isoelectronic sequence of boron

1996 ◽  
Vol 54 (1) ◽  
pp. 743-756 ◽  
Author(s):  
B. Blagojević ◽  
M. V. Popović ◽  
N. Konjević ◽  
M. S. Dimitrijević
Keyword(s):  
Spectral Lines ◽  
Isoelectronic Sequence

THE SPECTRUM OF ZINC IV

1964 ◽  
Vol 42 (4) ◽  
pp. 766-778 ◽  
Author(s):  
A. M. Crooker ◽  
K. A. Dick
Keyword(s):  
Satisfactory Agreement ◽  
Term Structure ◽  
Spectral Lines ◽  
Isoelectronic Sequence ◽  
Basic Term ◽  
The Third ◽  
Spark Discharges ◽  
First Time

The basic term structure in the third spark spectrum of zinc, Zn IV, is established herein for the first time. The spectral lines, excited in both sliding-spark and condensed-spark discharges in helium, were divided into their probable excitation classifications according to their behavior in these sources. Some 200 lines are classified as transitions between 17 even levels, arising from the configurations 3d9 and 3d84s, and 43 odd levels, arising from the configuration 3d84p. The analysis is shown to account for the principal Zn IV lines observed by Bloch and Bloch in the region λ < 500 Å, as well as our own data involving these and longer wavelengths. Comparisons made with the isoelectronic sequence Co I, Ni II, Cu III, and Zn IV show satisfactory agreement with anticipated regularities.

scholarly journals Atomic Physics for Hot Plasmas

1988 ◽  
Vol 102 ◽  
pp. 279-282
Author(s):  
L.A. Vainshtein
Keyword(s):  
Atomic Physics ◽  
Cross Sections ◽  
Experimental Test ◽  
Dielectronic Recombination ◽  
Spectral Lines ◽  
Isoelectronic Sequence ◽  
Recombination Rates ◽  
Theoretical Methods ◽  
Laboratory Plasmas ◽  
Charged Ions

This report treats some aspects of how to obtain and apply main atomic characteristics responsible for the intensities and satellite structures of spectral lines in hot plasmas.The experimental test, of theoretical methods and calculated cross- sections σ is often possible only in a plasma, especially for highly charged ions. In this case the rates &lt; υσ &gt;, rather than σ, are measured for different temperature values. Another difficulty is linked to the analysis of a large number of processes which have to be taken into account simultaneously.In laboratory plasmas (usually during an ionization stage) the ionization, excitation and dielectronic recombination rates are measured for numerous ions with Z ≤ 25. They are discussed in the report by H. Griem at this Colloquium. Unfortunately, in some cases the results are not consistent along the isoelectronic sequence and deviate considerably (up to a factor of 1.5 - 2) from those yielded by cross-beam methods, or calculations.

scholarly journals Stark Widths of Yb III and Lu IV Spectral Lines

Atoms ◽  
2019 ◽  
Vol 7 (1) ◽  
pp. 10
Author(s):  
Milan Dimitrijević
Keyword(s):  
Experimental Data ◽  
Rare Earth ◽  
Rare Earth Elements ◽  
Data Center ◽  
Semiempirical Method ◽  
Molecular Data ◽  
Stellar Atmosphere ◽  
Spectral Lines ◽  
Stark Broadening ◽  
Isoelectronic Sequence

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 literature. Using the modified semiempirical method of Dimitrijević and Konjević, we determined Stark widths for four Yb III and four Lu IV transitions, belonging to the erbium isoelectronic sequence. The obtained results are also used to discuss similarities between homologous transitions in the erbium isoelectronic sequence. We note as well that calculated widths will be implemented in the STARK-B database which is also a part of the Virtual Atomic and Molecular Data Center.

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