Toroidal and poloidal magnetic fields at Venus. Venus Express observations

2013 ◽  
Vol 87 ◽  
pp. 19-29 ◽  
Author(s):  
E. Dubinin ◽  
M. Fraenz ◽  
J. Woch ◽  
T.L. Zhang ◽  
Y. Wei ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
Venus Express ◽  
Poloidal Magnetic Fields

The Distribution of Radio Polarisation in Three Southern Galaxies

1991 ◽  
Vol 9 (2) ◽  
pp. 266-268
Author(s):  
J. I. Harnett ◽  
U. Klein ◽  
R. Wielebinski ◽  
R. F. Haynes
Keyword(s):  
Cosmic Rays ◽  
Magnetic Fields ◽  
Radio Telescope ◽  
Spiral Galaxies ◽  
Total Power ◽  
Transport Mechanisms ◽  
Contour Plots ◽  
Preliminary Study ◽  
Poloidal Magnetic Fields

AbstractWe are studying the distribution and morphology of magnetic fields in southern face-on and edge-on galaxies with the intention of clarifying the distribution, lifetimes and transport mechanisms of cosmic rays, and investigating the intensity and orientation of the disc, halo and poloidal magnetic fields. As a preliminary study, before the Australia Telescope was available, we observed a sample of well-known southern spiral galaxies with the Parkes radio telescope.Here, we present the resulting polarisation images for three galaxies, NGC 253, M 83 and NGC 4945, which were observed at 4.75 GHz and 8.55 GHz. The corresponding total power contour plots have been already published by Harnett et al. (1989a, 1990).

The Toroidal and Poloidal Coil Systems of JET

1986 ◽  
Vol 200 (2) ◽  
pp. 81-94 ◽  
Author(s):  
J R Last
Keyword(s):  
Magnetic Fields ◽  
Design And Manufacture ◽  
Poloidal Magnetic Fields

This paper describes the design and manufacture of coils to produce the toroidal and poloidal magnetic fields of the JET (Joint European Torus) Tokamak fusion project.

Poloidal Magnetic Fields in Galactic Central Regions

1990 ◽  
pp. 394-394
Author(s):  
H. Lesch ◽  
A. Crusius-Wätzel ◽  
R. Schlickeiser ◽  
R. Wielebinski
Keyword(s):  
Magnetic Fields ◽  
Central Regions ◽  
Poloidal Magnetic Fields

scholarly journals Toroidal versus poloidal magnetic fields in Sun-like stars: a rotation threshold

2008 ◽  
Vol 388 (1) ◽  
pp. 80-88 ◽  
Author(s):  
P. Petit ◽  
B. Dintrans ◽  
S. K. Solanki ◽  
J.-F. Donati ◽  
M. Aurire ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
Poloidal Magnetic Fields

scholarly journals Study of electric currents excitation in the plasma of the L-2M stellarator with its electronic cyclotronic creation and heating

2021 ◽  
Vol 9 (4) ◽  
pp. 310-324
Author(s):  
Stanislav Grebenshchikov ◽  
Dmitriy Vasilkov ◽  
Vyacheslav Ivanov ◽  
Karen Sarksyan ◽  
Maksim Tereshchenko ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Magnetic Fields ◽  
Plasma Column ◽  
Cyclotron Resonance ◽  
Electron Cyclotron Resonance ◽  
Ohmic Heating ◽  
Temporal Development ◽  
Toroidal Plasma ◽  
A Value ◽  
Poloidal Magnetic Fields

The results of measuring the longitudinal electric current excited in the toroidal plasma of the L-2M stellarator as a result of powerful pulsed microwave heating (power up to 600 kW, pulse duration up to 20 ms) are presented. In the experi-ments, to create and heat plasma in the stellarator, microwave radiation of gyro-trons with a frequency of 75 GHz, equal to the frequency of the 2nd harmonic of electron cyclotron resonance for a magnetic field with induction B = 1.34 T at the center of the plasma column, was used. To measure the currents in the plasma, di-agnostic systems of the stellarator were used, designed to record changes in time of the transverse and poloidal magnetic fields. It is shown that the presence of an ohmic heating iron transformer in the stellarator design significantly affects the temporal development of equilibrium currents due to the significant inductance of the toroidal plasma. When compensating the inductance of these devices, the ex-pected value of the current excited in the plasma can reach a value of about 7 kA.

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