Langmuir probe measurement of electron temperature in high‐pressure plasmas

1973 ◽  
Vol 44 (8) ◽  
pp. 3550-3556 ◽  
Author(s):  
R. M. Clements ◽  
P. R. Smy
Keyword(s):  
High Pressure ◽  
Electron Temperature ◽  
Langmuir Probe ◽  
Probe Measurement

Emissive probe measurement of electron temperature in high‐pressure plasmas (≥1 mTorr)

1988 ◽  
Vol 59 (9) ◽  
pp. 2002-2007 ◽  
Author(s):  
Haruo Shindo ◽  
Masayoshi Konishi ◽  
Takeshi Tamaru
Keyword(s):  
High Pressure ◽  
Electron Temperature ◽  
Probe Measurement ◽  
Emissive Probe

A new scheme for Langmuir probe measurement of transport and electron temperature fluctuations

1992 ◽  
Vol 63 (10) ◽  
pp. 4608-4610 ◽  
Author(s):  
H. Y. W. Tsui ◽  
R. D. Bengtson ◽  
G. X. Li ◽  
H. Lin ◽  
M. Meier ◽  
...  
Keyword(s):  
Electron Temperature ◽  
Langmuir Probe ◽  
Temperature Fluctuations ◽  
Probe Measurement

scholarly journals Dayside electron temperature and density profiles at Mars: First results from the MAVEN Langmuir probe and waves instrument

2015 ◽  
Vol 42 (21) ◽  
pp. 8846-8853 ◽  
Author(s):  
R. E. Ergun ◽  
M. W. Morooka ◽  
L. A. Andersson ◽  
C. M. Fowler ◽  
G. T. Delory ◽  
...  
Keyword(s):  
Electron Temperature ◽  
Langmuir Probe ◽  
Density Profiles ◽  
First Results

scholarly journals Diagnostics of low-pressure capacitively coupled RF discharge argon plasma

2019 ◽  
Vol 13 (27) ◽  
pp. 76-82
Author(s):  
Kadhim A. Aadim
Keyword(s):  
Electron Temperature ◽  
Electron Density ◽  
Langmuir Probe ◽  
Gas Flow ◽  
Low Pressure ◽  
Gas Pressure ◽  
Rf Discharge ◽  
Electrode Gap ◽  
Probe Characteristic ◽  
Capacitively Coupled

Low-pressure capacitively coupled RF discharge Ar plasma has been studied using Langmuir probe. The electron temperature, electron density and Debay length were calculated under different pressures and electrode gap. In this work the RF Langmuir probe is designed using 4MHz filter as compensation circuit and I-V probe characteristic have been investigated. The pressure varied from 0.07 mbar to 0.1 mbar while electrode gap varied from 2-5 cm. The plasma was generated using power supply at 4MHz frequency with power 300 W. The flowmeter is used to control Argon gas flow in the range of 600 standard cubic centimeters per minute (sccm). The electron temperature drops slowly with pressure and it's gradually decreased when expanding the electrode gap. As the gas pressure increases, the plasma density rises slightly at low gas pressure while it drops little at higher gas pressure. The electron density decreases rapidly with expand distances between electrodes.

Langmuir probe measurement of the bismuth plasma plume formed by an extreme-ultraviolet pulsed laser

2014 ◽  
Vol 47 (40) ◽  
pp. 405205 ◽  
Author(s):  
P Pira ◽  
T Burian ◽  
A Kolpaková ◽  
M Tichý ◽  
P Kudrna ◽  
...  
Keyword(s):  
Langmuir Probe ◽  
Plasma Plume ◽  
Extreme Ultraviolet ◽  
Pulsed Laser ◽  
Probe Measurement

scholarly journals Electron temperature in nighttime sporadic E layer at mid-latitude

2008 ◽  
Vol 26 (3) ◽  
pp. 533-541 ◽  
Author(s):  
K.-I. Oyama ◽  
T. Abe ◽  
H. Mori ◽  
J. Y. Liu
Keyword(s):  
Heat Source ◽  
Electron Temperature ◽  
Physical Parameter ◽  
Langmuir Probe ◽  
Present Theory ◽  
Height Range ◽  
Neutral Temperature ◽  
Sporadic E Layer ◽  
Sporadic E ◽  
Parameter Values

Abstract. Electron temperature in the sporadic E layer was measured with a glass-sealed Langmuir probe at a mid-latitude station in Japan in the framework of the SEEK (Sporadic E Experiment over Kyushu)-2 campaign which was conducted in August 2002. Important findings are two fold: (1) electron temperature and electron density vary in the opposite sense in the height range of 100–108 km, and electron temperature in the Es layer is lower than that of ambient plasma, (2) electron temperature in these height ranges is higher than the possible range of neutral temperature. These findings strongly suggest that the heat source that elevates electron temperature much higher than possible neutral temperature exists at around 100 km, and/or that the physical parameter values, which are used in the present theory to calculate electron temperature, are not proper.

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