Plasma density determination by using hydrogen Balmer Hα spectral line with improved accuracy

2020 ◽  
Vol 166 ◽  
pp. 105821
Author(s):  
Z. Mijatović ◽  
S. Djurović ◽  
L. Gavanski ◽  
T. Gajo ◽  
A. Favre ◽  
...  
1968 ◽  
Vol 4 (18) ◽  
pp. 392 ◽  
Author(s):  
A.R. Jones ◽  
B.V. Stanic ◽  
E.R. Wooding

2011 ◽  
Vol 8 (1) ◽  
pp. 54-58
Author(s):  
Baghdad Science Journal

A theoretical analysis studied was performed to study the opacity broadening of spectral lines emitted from aluminum plasma produced by Nd-YLF laser. The plasma density was in the range 1028-1026 )) m-3 with length of plasma about ?300) m) , the opacity was studied as function of plasma density & principle quantum number. The results show that the opacity broadening increases as plasma density increases & decreases with the spacing between energy levels of emission spectral line.


2021 ◽  
Vol 42 (3) ◽  
pp. 035203
Author(s):  
J Oliveira ◽  
D Hachmeister ◽  
P D Lourenço ◽  
J Brotankova ◽  
H Fernandes

1995 ◽  
Vol 50 (10) ◽  
pp. 902-914 ◽  
Author(s):  
C. Haas ◽  
G. Pretzier ◽  
H. Jäger

AbstractThe principles of resonance interferometry are described with regard to two applications: High accuracy particle density determination within plasmas and interferometrical determination of spectral line profiles. The usability of this technique is investigated numerically, and physical limits are given for the regions in which resonance interferometry may be employed successfully. The discussion and the results are helt general for making it possible to decide whether or not to apply this method for an actual problem. An example (an object being longitudinally homogeneous with respect to the direction of light: end-on observation) shows how to use the presented results for calculating the detection limits of the method for a given object geometry.


1997 ◽  
Vol 55 (6) ◽  
pp. R6352-R6355 ◽  
Author(s):  
P. Gibbon ◽  
D. Altenbernd ◽  
U. Teubner ◽  
E. Förster ◽  
P. Audebert ◽  
...  

2009 ◽  
Vol 102 (18) ◽  
Author(s):  
F. J. Marshall ◽  
P. W. McKenty ◽  
J. A. Delettrez ◽  
R. Epstein ◽  
J. P. Knauer ◽  
...  

1997 ◽  
Vol 51 (3) ◽  
pp. 396-400 ◽  
Author(s):  
Z. Mijatović ◽  
R. Kobilarov ◽  
S. Djurović ◽  
M. Stevanov

Four parameters of the He(I) 447.1-nm line with a forbidden component were measured. A pulsed arc was used as a plasma source. Electron density in the range (1.9–5.9) 1021 m−3 was measured with a CO2 laser interferometer. On the basis of the comparisons of the obtained results with several theories and empirical formulae for plasma density determination, it is shown that this line could be used for simple but precise electron density measurement, with an error < 10%.


1968 ◽  
Vol 39 (10) ◽  
pp. 1575-1576 ◽  
Author(s):  
A. J. Stirling ◽  
W. D. Westwood

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