Influence of propellant choice on MPD arcjet cathode surface current density distribution

1989 ◽  
Vol 141 (3-4) ◽  
pp. 169-171 ◽  
Author(s):  
T.S. Sheshadri
Keyword(s):  
Density Distribution ◽  
Current Density ◽  
Cathode Surface ◽  
Surface Current ◽  
Current Density Distribution ◽  
Surface Current Density

scholarly journals Electrodynamic Parameters of a Coaxial Cable at Bipolar Pulses Propagation

2020 ◽  
pp. 25-37
Author(s):  
Yanis I. Bulbik ◽  
Fedor G. Zograf
Keyword(s):  
Boundary Conditions ◽  
Density Distribution ◽  
Current Density ◽  
High Speed ◽  
Surface Current ◽  
Current Density Distribution ◽  
Coaxial Cable ◽  
Surface Current Density ◽  
Speed Increase ◽  
Outer Conductor

All-in-interworking technology, based on IEEE 802.3 standard, was mainly developed for the separable media cabling and data transmission speed increase. Although the high-speed networking is already provided by a fiber optic cable, coaxial guides are in demand for similar applications. Time-domain analysis is undertaken to estimate electrodynamic states of inner and outer guiding conductors at periodic bipolar pulses propagation on a coaxial cable. An electric current density distribution on the cross-section of the inner conductor is obtained from a solution of Maxwell equations under periodic boundary conditions that are prescribed by a product of two functions. The first one is introduced implicitly for a profile of surface current density in the axial direction, while the other determines this profile transient states. As for shielding braid, which is the cable outer conductor, its current density distribution is derived from an analysis of field harmonics that penetrate into conductive subsurface layers under similar boundary conditions. It is also shown that prescribed implicative boundary conditions for both conductors allow to obtain, at least under auxiliary assumption, some completed formulae useful to the estimation of the pulses duration admissible decrease at their transmission on the coaxial cable. The paper contains some comparative and numerical results as well

Energy Balance on Current Density Distribution of Cathode Spot in Vacuum Arc

2019 ◽  
Vol 139 (5) ◽  
pp. 302-308 ◽  
Author(s):  
Shinji Yamamoto ◽  
Soshi Iwata ◽  
Toru Iwao ◽  
Yoshiyasu Ehara
Keyword(s):  
Energy Balance ◽  
Density Distribution ◽  
Current Density ◽  
Cathode Spot ◽  
Current Density Distribution ◽  
Vacuum Arc

Automated Measurement of the Spatial Current Density Distribution of Process Electron Beams

Vestnik MEI ◽  
2018 ◽  
Vol 2 (2) ◽  
pp. 72-79
Author(s):  
Aleksey S. Kozhechenko ◽  
◽  
Aleksey V. Shcherbakov ◽  
Regina V. Rodyakina ◽  
Daria A. Gaponova ◽  
...  
Keyword(s):  
Density Distribution ◽  
Current Density ◽  
Electron Beams ◽  
Current Density Distribution ◽  
Automated Measurement ◽  
Spatial Current
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