Electron density and temperature determination using the concept of particle confinement time uniqueness

2005 ◽  
Vol 76 (5) ◽  
pp. 053508 ◽  
Author(s):  
A. M. Daltrini ◽  
M. Machida
Keyword(s):  
Electron Density ◽  
Confinement Time ◽  
Temperature Determination ◽  
Electron Density And Temperature ◽  
Particle Confinement

Theoretical calculation of electron density and temperature in the edge of tokamak

2017 ◽  
Vol 31 (17) ◽  
pp. 1750196 ◽  
Author(s):  
Muhammad Asif ◽  
Anila Asif
Keyword(s):  
Theoretical Calculation ◽  
Electron Density ◽  
Langmuir Probe ◽  
Temporal Evolution ◽  
Edge Plasma ◽  
Confinement Time ◽  
Electron Density And Temperature ◽  
Particle Confinement ◽  
Good Agreement ◽  
Probe Array

In this work, we use a method based on the concept of particle confinement time [Formula: see text] uniqueness to calculate the electron density and temperature in ohmically heated, edge plasma of the Hefei tokamak-7. Here, with the help of the data taken from Johnson and Hinnov’s table, we have done an extensive work to find electron densities and temperatures that satisfy the [Formula: see text] uniqueness to evaluate the temporal evolution of electron density [Formula: see text] and temperature [Formula: see text]. The results are in good agreement as measured from the Langmuir probe array in previous works.

A comparative measurement of the neutral density and particle confinement time in EBT-S

1986 ◽  
Vol 35 (3) ◽  
pp. 519-528 ◽  
Author(s):  
John C. Glowienka ◽  
Roger K. Richards
Keyword(s):  
Measurement Techniques ◽  
Spectroscopic Measurement ◽  
Neutral Density ◽  
Confinement Time ◽  
Comparative Measurement ◽  
Decay Measurement ◽  
Electron Density And Temperature ◽  
Scale Experiment ◽  
Fast Ion ◽  
Particle Confinement

The neutral density and particle confinement time in the ELMO Bumpy Torus-Scale Experiment (EBT-S) have been determined by two different techniques. These involve a spectroscopic measurement of molecular and atomic hydrogen emissions and a time-decay measurement of a fast-ion population using a diagnostic neutral beam. The results from both diagnostics exhibit identical trends for either estimate, although the absolute values differ by a factor of 2 to 3. The observed variations with fill gas pressure and microwave power from either technique are consistent with measurements of electron density and temperature. In this paper, the measurement techniques are discussed, and the results are compared in the context of consistency with independently observed plasma behaviour.

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

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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