Velocity measurement in hypersonic flows using electron-beam-assisted glow discharge

AIAA Journal ◽  
1998 ◽  
Vol 36 ◽  
pp. 1061-1064
Author(s):  
S. Larigaldie ◽  
D. Bize ◽  
A. K. Mohamed ◽  
M. Ory ◽  
J. Soutade ◽  
...  
Keyword(s):  
Electron Beam ◽  
Glow Discharge ◽  
Velocity Measurement ◽  
Hypersonic Flows

Velocity Measurement in Hypersonic Flows Using Electron-Beam-Assisted Glow Discharge

AIAA Journal ◽  
10.2514/2.480 ◽  
1998 ◽  
Vol 36 (6) ◽  
pp. 1061-1064 ◽  
Author(s):  
S. Larigaldie ◽  
D. Bize ◽  
A. K. Mohamed ◽  
M. Ory ◽  
J. Soutadé ◽  
...  
Keyword(s):  
Electron Beam ◽  
Glow Discharge ◽  
Velocity Measurement ◽  
Hypersonic Flows

Magnetohydrodynamic control of hypersonic flows and scramjet inlets using electron beam ionization

AIAA Journal ◽  
2002 ◽  
Vol 40 ◽  
pp. 74-81 ◽  
Author(s):  
S. O. Macheret ◽  
M. N. Shneider ◽  
R. B. Miles
Keyword(s):  
Electron Beam ◽  
Hypersonic Flows

scholarly journals Electric field distribution in the cathode sheath of an electron beam glow discharge

1987 ◽  
Vol 51 (6) ◽  
pp. 409-411 ◽  
Author(s):  
S. A. Lee ◽  
L.‐U. A. Andersen ◽  
J. J. Rocca ◽  
M. Marconi ◽  
N. D. Reesor
Keyword(s):  
Electron Beam ◽  
Glow Discharge ◽  
Electric Field ◽  
Field Distribution ◽  
Electric Field Distribution ◽  
Cathode Sheath

scholarly journals Methods and algorithm for calculating the focal parameters of a hollow conical electron beam in high-voltage glow discharge electron guns with a focusing magnetic lens

2021 ◽  
pp. 17-32
Author(s):  
Igor Melnyk ◽  
Sergey Tugay ◽  
Volodymyr Kyryk ◽  
Iryna Shved
Keyword(s):  
Electron Beam ◽  
Glow Discharge ◽  
High Voltage ◽  
Discrete Mathematics ◽  
Drift Region ◽  
Magnetic Lens ◽  
Focal Distance ◽  
Electron Guns ◽  
Focal Parameters ◽  
Focal Ring

The algorithm is considered for calculating the focal distance of a hollow conical electron beam generated by high-voltage glow discharge electron guns with magnetic focusing of the beam in the drift region, as well as a method for calculating the diameter of the focal ring and its thickness for such a beam. The proposed algorithm is based on the theory of electron drift in the field of a focusing magnetic lens and is designed using the methods of discrete mathematics and the minimax analysis. The obtained simulation results made it possible to establish the influence of the magnetic lens current on the focal diameter of a hollow conical electron beam and on its focal ring thickness. It is shown that the change in the focal parameters of a hollow conical electron beam can be effectively provided through the regulation of the magnetic lens current.

scholarly journals Stabilization of a cold cathode electron beam glow discharge for surface treatment

1997 ◽  
Vol 82 (8) ◽  
pp. 4118-4120 ◽  
Author(s):  
N. Mingolo ◽  
C. R. González ◽  
O. E. Martı́nez ◽  
J. J. Rocca
Keyword(s):  
Electron Beam ◽  
Glow Discharge ◽  
Surface Treatment ◽  
Cold Cathode

scholarly journals A simple model of a glow discharge electron beam for materials processing

1997 ◽  
Vol 25 (3) ◽  
pp. 427-432 ◽  
Author(s):  
J.I. Etcheverry ◽  
N. Mingolo ◽  
J.J. Rocca ◽  
O.E. Martinez
Keyword(s):  
Electron Beam ◽  
Simple Model ◽  
Glow Discharge ◽  
Materials Processing

PARTICULARITIES OF USING THEE METHODS OF MATRIX PROGRAMMING IN THE MATHEMATICAL MODELS OF HIGH VOLTAGE GLOW DISCHARGE ELECTRON SOURCES

2019 ◽  
Author(s):  
Igor Melnyk
Keyword(s):  
Electron Beam ◽  
Glow Discharge ◽  
High Voltage ◽  
Electron Beam Welding ◽  
Mathematic Model ◽  
Physical Processes ◽  
Electron Sources ◽  
Distribution Of Power ◽  
Distribution Of Power Density ◽  
Discharge Gap

Possibilities and particularities of using of arithmetic-logic equations in complex models of high voltage glow discharge electron sources are considered in the article. Such electron sources are find wide application in electronic industry, device production and mechanic engineering for electron beam welding, brazing, annealing of produced items, for deposition of composed ceramics films and coatings, as well as for refining of refractory materials with using of electron-beam refusing in the soft vacuum. Main problem of designing of technological high voltage glow discharge electron sources is absence of complex physical-mathematic models. This fact is caused by complicity of physical processes, taking place in the discharge gap at conditions of low and middle vacuum, and it generally holding back the elaboration and providing in industry such advanced electron sources. Complex physic-mathematic model of high voltage glow discharge electron sources, based on apply­ ing of arithmetic-logic relations and methods of matrix programming, is proposed in the article. Main physical processes, taking place in the high voltage glow discharge, as well as mathematic means for describing these processes, and main items of elect­ ron gun, are considered. Mathematic relations for proposed model are written in the form of arithmetic-logic equations. The results of simulation of distribution of elect­ ric field in the discharge gap, distribution of power density of electron beam in the fo­ cus and guiding of electron beam in the equipotential channel, are presented. Its have been shown, that using of arithmetic-logic relations is significantly simplified realiza­ tion of proposed physic-mathematic model with using the means of matrix program­ ming. Possibilities of providing parallel calculations are also analyzed.

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