Two-Dimensional LCIF Images of Electron Density and Temperature Within an ECR Plasma Cathode

2011 ◽  
Vol 39 (11) ◽  
pp. 2486-2487 ◽  
Author(s):  
Brandon R. Weatherford ◽  
Edward V. Barnat ◽  
John E. Foster
Keyword(s):  
Electron Density ◽  
Two Dimensional ◽  
Plasma Cathode ◽  
Ecr Plasma ◽  
Electron Density And Temperature

On the Interpretation of Weak Sources of Enhanced 80 MHz Emission in the Solar Corona

1970 ◽  
Vol 1 (8) ◽  
pp. 375-376 ◽  
Author(s):  
A. C. Riddle
Keyword(s):  
Thermal Radiation ◽  
Solar Corona ◽  
Electron Density ◽  
Thermal Model ◽  
The Sun ◽  
Two Dimensional ◽  
Low Intensity ◽  
Coronal Streamer ◽  
Synodic Period ◽  
Electron Density And Temperature

Recent two-dimensional observations of the quiet sun at 80 MHz by Sheridan showed a persistent low-intensity source (radio enhancement) whose daily motion was consistent with a source at radius 0.95 R® rotating with a synodic period of 27.3 d. In this paper we shall attempt to interpret this result in terms of the effects of refraction and opacity in model coronas. Comprehensive studies of the Sun at 169 MHz show that similar radio enhancements are associated with coronal streamers and that reasonable values for electron density and temperature within the coronal streamer allow the observations to be explained in terms of thermal radiation. Hence we shall consider only coronal models that possess streamer structure. We shall show that temperature enhancements within the streamer (‘thermal model’) do not lead to an apparent radius as small as that observed by Sheridan and that his observation may be better understood in terms of a non-thermal model for radiation from the streamer region.

THEORETICAL ELECTRON DENSITY AND TEMPERATURE SENSITIVE EMISSION LINE RATIOS FOR HELIUM-LIKE Si XIII COMPARED TO DITE TOKAMAK OBSERVATIONS

1989 ◽  
Vol 50 (C1) ◽  
pp. C1-559-C1-564
Author(s):  
F. P. KEENAN ◽  
R. BARNSLEY ◽  
J. DUNN ◽  
K. D. EVANS ◽  
S. M. McCANN ◽  
...  
Keyword(s):  
Emission Line ◽  
Electron Density ◽  
Temperature Sensitive ◽  
Electron Density And Temperature

scholarly journals Measurement of Electron Density and Temperature of Laser-Induced Copper Plasma

2013 ◽  
Vol 25 (4) ◽  
pp. 2192-2198 ◽  
Author(s):  
M.A. Naeem ◽  
M. Iqbal ◽  
N. Amin ◽  
M. Musadiq ◽  
Y. Jamil ◽  
...  
Keyword(s):  
Electron Density ◽  
Electron Density And Temperature ◽  
Copper Plasma
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