# IEEE Transactions on Plasma Science

## Filter Results

Displaying Results 1 - 25 of 67
• ### Mathematical models of high-current pulse generators with closing and opening switches

Publication Year: 1992, Page(s):967 - 972
Cited by:  Papers (5)
| | PDF (464 KB)

Simple and effective mathematical models of nonlinear circuit elements of high-current pulse generators are formulated and investigated. The feasibility of the approach is demonstrated by developing a circuit model of the fuse opening switch. The application of these mathematical models to the circuits of different generators is considered. Comparisons between simulation and experimental data are ... View full abstract»

• ### Cosmological implications of a massive neutrino

Publication Year: 1992, Page(s):965 - 966
| | PDF (196 KB)

The Alfven cosmic plasma model of the Universe is shown to be consistent with the cosmic background radiation, which is taken to be the radiation from neutrino-antineutrino annihilation. The mass of the neutrino is found to be 6.2×10-4 eV, which is consistent with other experimental observations View full abstract»

• ### The cosmological constant and the red shift of quasars

Publication Year: 1992, Page(s):958 - 964
| | PDF (748 KB)

How the cosmological constant that is used in Einstein's model has an equivalent in the Big Bang model is discussed; gravitational fields are also considered. That model requires a critical density of matter that leads to the problem of dark matter. It is shown that data on new cosmological structures and on a non-Doppler red-shift mechanism lead to an unlimited and ageless Universe. It is also ex... View full abstract»

• ### Unification of gravity and electromagnetism in the plasma universe

Publication Year: 1992, Page(s):944 - 957
Cited by:  Papers (7)
| | PDF (1304 KB)

The basic arguments and results of the gravity-electromagnetism (GEM) theory are presented. This theory unifies gravity and electromagnetism using simple models and concepts and is based on two postulates: (1) gravity is a spatially varying Poynting field that defines the geometry of space such that ultrastrong fields are self-canceling and (2) the splitting or separation of characteristics of gra... View full abstract»

• ### Wave-particle interaction at the plasmasphere-ring current interface

Publication Year: 1992, Page(s):829 - 832
Cited by:  Papers (1)
| | PDF (360 KB)

During the plasmasphere filling process following geomagnetic storms, an outward density decrease of the cold plasma at L=3-4 is typically observed. When this structure overlaps with the sharp inner edge of the ring current, wave activity is detected at linearly stable phase velocities. The excitation of these waves around the lower hybrid frequency and their effects on the heating of the... View full abstract»

• ### Unification of gravitational, electrical, and strong forces by a virtual plasma theory

Publication Year: 1992, Page(s):939 - 943
Cited by:  Papers (1)
| | PDF (296 KB)

It was demonstrated in previous papers that a virtual plasma theory of physical forces unifies all forces as fluid' or Magnus' forces generated by vortex structures (particles) in the virtual plasma gas. The theory generates gravitational fields. It generates the electrostatic field in the atom, explains the form and action of the Schrodinger equation, and generates the appropriate Bohr orbits i... View full abstract»

• ### A global magnetohydrodynamic simulation of the magnetosheath and magnetosphere when the interplanetary magnetic field is northward

Publication Year: 1992, Page(s):817 - 828
Cited by:  Papers (60)
| | PDF (1068 KB)

A new high-resolution global magnetohydrodynamic simulation model is used to investigate the configuration of the magnetosphere when the interplanetary magnetic field (IMF) is northward. For northward IMF the magnetospheric configuration is dominated by magnetic reconnection at the tail lobe magnetopause tailward of the polar cusp. This results in a local thickening of the plasma sheet equatorward... View full abstract»

• ### Demonstration of a plasma mirror for microwaves

Publication Year: 1992, Page(s):1036 - 1040
Cited by:  Papers (38)
| | PDF (396 KB)

A plane sheet of partially ionized plasma produced by a pulsed, hollow-cathode glow discharge in an axial magnetic field has been shown to reflect X-band microwaves as well as an equivalent sheet of metal. The plasma mirror can be established and extinguished on a time scale of about 20 μs and could form the basis of an extremely agile radar system View full abstract»

• ### Force-free magnetic filaments and the cosmic background radiation

Publication Year: 1992, Page(s):935 - 938
Cited by:  Papers (3)
| | PDF (344 KB)

Dense, force-free magnetic filaments generated by quasars, active galactic nuclei, and Herbig-Haro objects can remain stable in the intergalactic medium for many Gy. They will be opaque to radiation with wavelengths longer than 100-400 μm, and essentially transparent to shorter wavelengths. They are thus capable of thermalizing and isotropizing the cosmic background radiation, and of accounting... View full abstract»

• ### Solar wind-magnetosphere interaction as simulated by a 3-D EM particle code

Publication Year: 1992, Page(s):810 - 816
Cited by:  Papers (31)
| | PDF (576 KB)

Results are presented for simulating the solar-wind-magnetosphere interaction with a new three-dimensional electromagnetic particle code. Previously, such global simulations were done with MHD codes while lower-dimensional particle or hybrid codes served to account for microscopic processes and such transport parameters as have to be introduced ad hoc in MHD. The kinetic model presented attempts t... View full abstract»

• ### Magnetic suppression of arc blowout in a model arc furnace

Publication Year: 1992, Page(s):1026 - 1035
Cited by:  Papers (6)
| | PDF (892 KB)

The two most likely causes of electromagnetic instability in electric furnace arcs are shown to be the kink and the fire-hose instabilities. Stabilization by an externally imposed axially magnetic field is analyzed, and experimental results are presented demonstrating stabilization of a small, pulsed test arc by this method View full abstract»

• ### Observation of closed loops in high-voltage discharges: a possible precursor of magnetic flux trapping

Publication Year: 1992, Page(s):669 - 671
Cited by:  Papers (6)
| | PDF (256 KB)

In multimegavolt electrostatic generators, the accidental sparkover discharges change in character as the voltage and stored energy increase. The usual forked, unidirectional discharges are replaced by complex discharges containing numerous closed loops. It is suggested that this is an example of the formation of closed-current loops that generate magnetic fields in astrophysics View full abstract»

• ### Some aspects of dust-plasma interactions in the cosmic environment

Publication Year: 1992, Page(s):929 - 934
Cited by:  Papers (97)
| | PDF (636 KB)

A brief, critical review of dust-plasma interactions in the cosmic environment is presented, with emphasis on certain results. Both single-particle (e.g., gravitoelectrodynamics) and collective (e.g., appearance of new wave models) effects are discussed and some areas in which further research is needed are pointed out. The pressing need for laboratory studies, both to provide the necessary data f... View full abstract»

• ### Generation of coherent structures caused by ionospheric heating

Publication Year: 1992, Page(s):803 - 809
Cited by:  Papers (6)
| | PDF (548 KB)

The thermal parametric instability excited by powerful high-frequency (HF) radio waves in the F region of the ionosphere is investigated. The HF radio waves, propagating through this inhomogeneous, magnetized plasma, are transformed into large-amplitude electrostatic plasma waves, which in turn couple to pseudo-three-dimensional nonlinear low-frequency density disturbances. This scenario is descri... View full abstract»

• ### On finite ion Larmor radius MHD equations

Publication Year: 1992, Page(s):1023 - 1025
| | PDF (248 KB)

The finite ion Larmor radius effects in magnetohydrodynamic equations are formulated without imposing plasma incompressibility. The result is in agreement with the gyrokinetic formulation View full abstract»

• ### Evolution of particle clouds around ablating pellets in magnetically confined hot plasmas

Publication Year: 1992, Page(s):663 - 668
Cited by:  Papers (8)
| | PDF (592 KB)

Cryogenic hydrogen isotope pellets are being used for introducing fuel particles into the plasma interior in magnetic confinement fusion experiments. The spatial and the time evolution of the initially low-temperature, high-density particle clouds forming around such pellets are considered, with particular attention given to such physical processes as heating of the clouds by the energy fluxes car... View full abstract»

• ### Two-stream and gravitational instabilities in a grain plasma

Publication Year: 1992, Page(s):922 - 928
Cited by:  Papers (10)
| | PDF (596 KB)

If the massive component of a two-component plasma consists of weakly charged solid grains, electrostatic and gravitational instabilities can operate on similar spatial and temporal scales. In particular, when the grain charge-to-mass ratio is on the order of the square root of the gravitational constant, the electrostatic two-stream (or Buneman) instability can seed the Jeans gravitational instab... View full abstract»

• ### Theoretical aspects of weak double layers and their relation to the electrodynamic coupling between the magnetosphere and ionosphere

Publication Year: 1992, Page(s):797 - 802
Cited by:  Papers (1)
| | PDF (628 KB)

Weak double layers are small-scale plasma structures with a magnetic-field-aligned electric potential jump on the order of, or less than, the thermal energy of background plasma. On auroral magnetic field lines they have been observed within the altitude range from about 4000 km up to 13500 km. The weak double layers are typically found in association with upward flowing ionospheric ions with ener... View full abstract»

• ### Physics issues associated with low-β plasma generators

Publication Year: 1992, Page(s):644 - 650
Cited by:  Papers (5)
| | PDF (620 KB)

Kinetic aspects of MHD generators are explored by examining the propagation of dense, low-β streams of plasma. Three situations are considered: the basic principles of plasma-stream propagation, the propagation of plasma streams into vacuum, and the propagation of plasma streams into ambient plasmas. These three situations are analogous to plasma generators, plasma generators with vacuum load... View full abstract»

• ### Effects of higher order nonlinearity on the propagation of solitary waves in relativistic ion drift plasma

Publication Year: 1992, Page(s):1015 - 1022
Cited by:  Papers (2)
| | PDF (428 KB)

The effects of higher-order nonlinearity, relativistically drifting ions, and negative ions on the ion-acoustic solitons in a plasma having isothermal electrons are investigated theoretically. By applying the reductive perturbation technique to the basic system of equations, a modified Korteweg-de Vries equations and a linear inhomogeneous wave equation have been derived. Moreover, stationary solu... View full abstract»

• ### Sounding rocket measurements of suprathermal ion acceleration

Publication Year: 1992, Page(s):705 - 714
| | PDF (1032 KB)

Transverse ion acceleration has been observed at rocket altitudes between 500 and 1000 km due to the injection of 100-200-eV argon plasma, auroral electron precipitation, and the injection of electromagnetic waves. Field-aligned currents necessary to neutralize the plasma injection payloads and those naturally occurring in the aurora could be responsible for the ions observed in the first two obse... View full abstract»

• ### A new hypothesis of cosmic ray generation in plasma pinches

Publication Year: 1992, Page(s):898 - 904
Cited by:  Papers (2)
| | PDF (600 KB)

A hypothesis for the birth of galactic cosmic rays in cosmic plasma pinches resulting from neck-type contractions that force plasma to jet outward is presented. It is shown that the accelerated particle energy, E, has a power law dependency dN/dE~ E-s with index s=1+√3=2.732 at the moment of neck breaking or pinch disruption. This value... View full abstract»

• ### Carbon cathode spot plasma flux distributions in low pressures of hydrogen: some evidence for the C++H2→CH++H reaction

Publication Year: 1992, Page(s):1053 - 1059
Cited by:  Papers (8)
| | PDF (500 KB)

Measurements of the wall current collected from the expanding cathodic arc plasma are reported as a function of angle to cathode plane normal, with hydrogen gas pressure in the arc chamber varying between 10 -4 torr and 10 torr and distance R to the cathode varying between 10 and 80 mm. The angular distribution of the collected current is not seen to be affected by the gas pres... View full abstract»

• ### Nonlinear interactions between electrons and RF waves in crossed electric and magnetic fields

Publication Year: 1992, Page(s):659 - 662
Cited by:  Papers (1)
| | PDF (348 KB)

A laboratory experiment has been initiated to study nonlinear electron-wave interactions. In this experiment, the interaction between a guided RF wave and an electron beam is investigated using a large crossed field amplifier. The electron beam is injected through externally imposed crossed electric and magnetic fields. The large-amplitude RF wave is guided by a serpentine slow wave structure and ... View full abstract»

• ### Simulations of second-order Fermi acceleration of electrons: solving the injection problem

Publication Year: 1992, Page(s):917 - 921
| | PDF (364 KB)

The boosting of electrons from a Maxwellian distribution into a suprathermal power-law tail is studied, using a test-particle simulation code, following the full equations of motion of tens of thousands of electrons chosen from a thermal population as they move through general time-dependent magnetic fields. This distinguishes between bulk heating of the electron population or boosting of selected... View full abstract»

## Aims & Scope

IEEE Transactions on Plasma Sciences focuses on plasma science and engineering, including: magnetofluid dynamics and thermionics; plasma dynamics; gaseous electronics and arc technology.

Full Aims & Scope

## Meet Our Editors

Editor-in-Chief
Steven J. Gitomer, Ph.D.
Senior Scientist, US Civilian Research & Development Foundation
Guest Scientist, Los Alamos National Laboratory
1428 Miracerros Loop South
Santa Fe, NM  87505  87505  USA
tps-editor@ieee.org
Phone:505-988-5751
Fax:505-988-5751 (call first)