Spectroscopic measurements of electron density and temperature in polyacetal-capillary-discharge plasmas

1994 ◽  
Vol 49 (3) ◽  
pp. 2282-2290 ◽  
Author(s):  
C. A. Morgan ◽  
H. R. Griem ◽  
R. C. Elton
Keyword(s):  
Electron Density ◽  
Capillary Discharge ◽  
Spectroscopic Measurements ◽  
Discharge Plasmas ◽  
Electron Density And Temperature

Temporal evolution of electron density and temperature in capillary discharge plasmas

2010 ◽  
Vol 107 (10) ◽  
pp. 103309 ◽  
Author(s):  
Seong Y. Oh ◽  
Han S. Uhm ◽  
Hoonsoo Kang ◽  
In W. Lee ◽  
Hyyong Suk
Keyword(s):  
Electron Density ◽  
Temporal Evolution ◽  
Capillary Discharge ◽  
Discharge Plasmas ◽  
Electron Density And Temperature

Spectroscopic measurements of radial distribution of electron density and temperature in a plasma

1996 ◽  
Vol 5 (4) ◽  
pp. 471-494 ◽  
Author(s):  
Leonardo Placentino ◽  
Enrico Colombo ◽  
Enrico Emolumento ◽  
Enrico Paganini ◽  
Vieri Piemontese ◽  
...  
Keyword(s):  
Electron Density ◽  
Radial Distribution ◽  
Spectroscopic Measurements ◽  
Electron Density And Temperature

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 Radial density profile and stability of capillary discharge plasma waveguides of lengths up to 40 cm

2021 ◽  
Vol 9 ◽  
Author(s):  
M. Turner ◽  
A. J. Gonsalves ◽  
S. S. Bulanov ◽  
C. Benedetti ◽  
N. A. Bobrova ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Electron Density ◽  
Density Profile ◽  
Pulse Propagation ◽  
Spot Size ◽  
Capillary Discharge ◽  
Electron Density Profile ◽  
Plasma Waveguide ◽  
Wakefield Acceleration ◽  
Plasma Wakefield

Abstract We measured the parameter reproducibility and radial electron density profile of capillary discharge waveguides with diameters of 650 $\mathrm{\mu} \mathrm{m}$ to 2 mm and lengths of 9 to 40 cm. To the best of the authors’ knowledge, 40 cm is the longest discharge capillary plasma waveguide to date. This length is important for $\ge$ 10 GeV electron energy gain in a single laser-driven plasma wakefield acceleration stage. Evaluation of waveguide parameter variations showed that their focusing strength was stable and reproducible to $<0.2$ % and their average on-axis plasma electron density to $<1$ %. These variations explain only a small fraction of laser-driven plasma wakefield acceleration electron bunch variations observed in experiments to date. Measurements of laser pulse centroid oscillations revealed that the radial channel profile rises faster than parabolic and is in excellent agreement with magnetohydrodynamic simulation results. We show that the effects of non-parabolic contributions on Gaussian pulse propagation were negligible when the pulse was approximately matched to the channel. However, they affected pulse propagation for a non-matched configuration in which the waveguide was used as a plasma telescope to change the focused laser pulse spot size.

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

Anomalous features of the electron density in the topside ionosphere

1969 ◽  
Vol 311 (1507) ◽  
pp. 501-516 ◽  
Keyword(s):  
Electron Density ◽  
Power Supply ◽  
Data Rate ◽  
Power Lines ◽  
Topside Ionosphere ◽  
Telemetry Data ◽  
Electron Density And Temperature

The instruments which measure electron density and temperature are quite separate and independent in operation, but on account of the limitations in power supply and telemetry data rate the two experiments share the same power lines and some data channels.

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