Interaction of a supersonic plasma stream with a dipole magnetic field

1964 ◽  
Author(s):  
J. BASKETT
Keyword(s):  
Magnetic Field ◽  
Plasma Stream ◽  
Dipole Magnetic Field ◽  
Supersonic Plasma

Interaction of a supersonic plasma stream with a dipole magnetic field

1964 ◽  
Vol 69 (11) ◽  
pp. 2257-2272 ◽  
Author(s):  
J. B. Cladis ◽  
T. D. Miller ◽  
J. R. Baskett
Keyword(s):  
Magnetic Field ◽  
Plasma Stream ◽  
Dipole Magnetic Field ◽  
Supersonic Plasma

Stationary waves at the interface between a plasma stream and magnetic field

1982 ◽  
Vol 28 (1) ◽  
pp. 13-17 ◽  
Author(s):  
Bhimsen K. Shivamoggi
Keyword(s):  
Magnetic Field ◽  
Plasma Stream ◽  
Stationary Waves ◽  
Transform Method ◽  
Magnetic Dipoles ◽  
Shallow Water Approximation ◽  
Supersonic Plasma ◽  
Gravity Effects ◽  
The Magnetic Field ◽  
Effect Of Surface

A uniformly-streaming compressible and infinitely-conducting plasma is confined by a magnetic field aligned with the stream. The system is disturbed by introducing magnetic dipoles into the field. A Fourier-transform method is used to determine the displacement of the interface between the streaming plasma and the magnetic field within the framework of a ‘shallow-water’ approximation. For the case of a subsonic plasma stream, stationary waves appear on the interface upstream of the dipoles, and it is found that (i) these stationary waves are possible only if the gravity effects on the plasma are weak enough; (ii) the effect of surface tension at the interface is to reduce the amplitude and increase the wavelength of these waves. For the case of a supersonic plasma stream, however, stationary waves at the interface are not possible.

Long-pulse plasma source for SMOLA helical mirror

2021 ◽  
Vol 87 (2) ◽  
Author(s):  
Ivan A. Ivanov ◽  
V. O. Ustyuzhanin ◽  
A. V. Sudnikov ◽  
A. Inzhevatkina
Keyword(s):  
Magnetic Field ◽  
Gas Flow ◽  
Supply Voltage ◽  
Hydrogen Plasma ◽  
Plasma Source ◽  
Lanthanum Hexaboride ◽  
Plasma Stream ◽  
Plasma Parameters ◽  
Plasma Properties ◽  
Plasma Gun

A plasma gun for forming a plasma stream in the open magnetic mirror trap with additional helicoidal field SMOLA is described. The plasma gun is an axisymmetric system with a planar circular hot cathode based on lanthanum hexaboride and a hollow copper anode. The two planar coils are located around the plasma source and create a magnetic field of up to 200 mT. The magnetic field forms the magnetron configuration of the discharge and provides a radial electric insulation. The source typically operates with a discharge current of up to 350 A in hydrogen. Plasma parameters in the SMOLA device are Ti ~ 5 eV, Te ~ 5–40 eV and ni ~ (0.1–1)  × 1019 m−3. Helium plasma can also be created. The plasma properties depend on the whole group of initial technical parameters: the cathode temperature, the feeding gas flow, the anode-cathode supply voltage and the magnitude of the cathode magnetic insulation.

Particle balance in a steady state plasma in a dipole magnetic field

2019 ◽  
Vol 1 (4) ◽  
pp. 045005 ◽  
Author(s):  
Anuj Ram Baitha ◽  
Ayesha Nanda ◽  
Sargam Hunjan ◽  
Sudeep Bhattacharjee
Keyword(s):  
Magnetic Field ◽  
Steady State ◽  
Dipole Magnetic Field ◽  
Particle Balance ◽  
State Plasma

scholarly journals Spin-down rate and inferred dipole magnetic field of the soft gamma-ray repeater SGR 1627-41

2009 ◽  
Vol 399 (1) ◽  
pp. L44-L48 ◽  
Author(s):  
P. Esposito ◽  
M. Burgay ◽  
A. Possenti ◽  
R. Turolla ◽  
S. Zane ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Gamma Ray ◽  
Dipole Magnetic Field

Cerenkov and cyclotron instabilities in a plasma stream

1967 ◽  
Vol 1 (1) ◽  
pp. 1-27 ◽  
Author(s):  
C. F. Knox
Keyword(s):  
Magnetic Field ◽  
Plane Wave ◽  
Cold Plasma ◽  
Numerical Calculations ◽  
Graphical Form ◽  
Plasma Stream ◽  
Wave Growth ◽  
Stationary Medium ◽  
Phase Propagation ◽  
Positive Ion

The model of a stationary medium traversed by a weak plasma stream directed along a magnetic field is investigated. The usual linear treatment is adopted, and the stream is taken to be ‘cold’, with only electron (perturbation) motions considered. The objective is to assess the plane-wave growth associated with both Cerenkov and cyclotron instabilities; in particular, the dependence of the growth on frequency and angle of phase propagation. The main discussion is of the case when the stationary medium is a cold plasma in which both electron and positive ion motions are taken into account. Various expressions for the growth are derived, and numerical calculations are presented in graphical form.

Physical and Chemical Processes Research of Isotope Separation in Plasma under Magnetic Field

2014 ◽  
Vol 880 ◽  
pp. 128-133 ◽  
Author(s):  
Vyacheslav F. Myshkin ◽  
Dmitry A. Izhoykin ◽  
Ivan A. Ushakov ◽  
Viktor F. Shvetsov
Keyword(s):  
Magnetic Field ◽  
Carbon Dioxide ◽  
Plasma Flow ◽  
High Frequency ◽  
Isotope Separation ◽  
Carbon Dioxide Concentration ◽  
Plasma Stream ◽  
Reaction Products ◽  
Valence Electrons ◽  
Field Lines

It is known that chemical bonding is only possible when particles with antiparallel valence electrons spins orientation collide [1, 2]. In an external magnetic field unpaired electrons spins precession around the field lines is observed. Precession frequencies of valence electrons of magnetic and nonmagnetic nuclei differ, resulting in a different probability to collide in reactive state for different isotopes. The investigations results of magnetic field influence on the carbon isotopes redistribution between carbon dioxide and disperse carbon in plasmachemical processes are given. Argon-oxygen plasma by a high-frequency generator was produced. Carbon placed into reaction zone by the high-frequency electrode evaporation. The plasmachemical reaction products quenching in the plasma flow at the sampler probe were examined. It is found that the Laval nozzle sampler is more efficient for plasma stream cooling versus the cylindrical sampler. The effects of flow rate, pressure and carbon dioxide concentration on the plasma flow cooling efficiency were estimated.

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