4896. Measurement of neutral gas density with ionization gauges in plasma physics research

Vacuum ◽  
1982 ◽  
Vol 32 (4) ◽  
pp. 210
Keyword(s):  
Plasma Physics ◽  
Gas Density ◽  
Neutral Gas

Comet P/Halley neutral gas density profile along the Vega-1 trajectory measured by the Neutral Gas Experiment

1988 ◽  
pp. 360-362 ◽  
Author(s):  
C. C. Curtis ◽  
C. Y. Fan ◽  
K. C. Hsieh ◽  
D. M. Hunten ◽  
W.-H. Ip ◽  
...  
Keyword(s):  
Density Profile ◽  
Gas Density ◽  
Neutral Gas ◽  
Vega 1

The Line of Sight of ϵ Canis Majoris: Depletion and Extent of the Local Cloud

1997 ◽  
Vol 166 ◽  
pp. 161-164
Author(s):  
Cécile Gry ◽  
Olivier Dupin
Keyword(s):  
High Resolution ◽  
Column Density ◽  
Uv Spectra ◽  
Line Of Sight ◽  
Gas Density ◽  
Neutral Gas ◽  
Local Cloud

AbstractWith new high resolution UV spectra of ϵ CMa we show that the gas column density in this sight-line is less than 4 1017 cm−2, that the neutral gas density is less than 10−5 cm−3 after the first 3 parsecs, and that the Local Cloud seems to be almost undepleted and to extend to no more than 0.6 pc in this direction.

1D PIC simulation of microscale breakdown in gaps with a non-uniform background neutral gas density

2013 ◽  
Author(s):  
Chris H. Moore ◽  
Matthew M. Hopkins ◽  
Jeremiah J. Boerner ◽  
Paul S. Crozier ◽  
Lawrence C. Musson ◽  
...  
Keyword(s):  
Gas Density ◽  
Pic Simulation ◽  
Neutral Gas ◽  
Uniform Background

scholarly journals Emission and afterglow properties of an expanding RF plasma with nonuniform neutral gas density

2016 ◽  
Vol 23 (8) ◽  
pp. 083506 ◽  
Author(s):  
Vernon H. Chaplin ◽  
Paul M. Bellan
Keyword(s):  
Rf Plasma ◽  
Gas Density ◽  
Neutral Gas

scholarly journals Thermospheric Parameters during Ionospheric G-Conditions

2021 ◽  
Vol 13 (17) ◽  
pp. 3440
Author(s):  
Loredana Perrone ◽  
Andrey V. Mikhailov ◽  
Dario Sabbagh
Keyword(s):  
Atomic Oxygen ◽  
Molecular Nitrogen ◽  
Retrieval Process ◽  
Gas Density ◽  
Oxygen Abundance ◽  
Plasma Drift ◽  
Neutral Gas ◽  
Thermospheric Winds ◽  
First Time ◽  
Exospheric Temperature

For the first time thermospheric parameters (neutral composition, exospheric temperature and vertical plasma drift related to thermospheric winds) have been inferred for ionospheric G-conditions observed with Millstone Hill ISR on 11–13 September 2005; 13 June 2005, and 15 July 2012. The earlier developed method to extract a consistent set of thermospheric parameters from ionospheric observations has been revised to solve the problem in question. In particular CHAMP/STAR and GOCE neutral gas density observations were included into the retrieval process. It was found that G-condition days were distinguished by enhanced exospheric temperature and decreased by ~2 times of the column atomic oxygen abundance in a comparison to quiet reference days, the molecular nitrogen column abundance being practically unchanged. The inferred upward plasma drift corresponds to strong ~90 m/s equatorward thermospheric wind presumably related to strong auroral heating on G-condition days.

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