On Ohmic heating in the Earth’s core II: Poloidal magnetic fields obeying Taylor’s constraint

2011 ◽  
Vol 187 (3-4) ◽  
pp. 322-327 ◽  
Author(s):  
Andrew Jackson ◽  
Philip W. Livermore ◽  
Glenn Ierley
Keyword(s):  
Magnetic Fields ◽  
Ohmic Heating ◽  
Earth’S Core ◽  
Earth's Core ◽  
Poloidal Magnetic Fields

scholarly journals On Ohmic heating in the Earth's core I: nutation constraints

2009 ◽  
Vol 177 (2) ◽  
pp. 367-382 ◽  
Author(s):  
Andrew Jackson ◽  
Philip Livermore
Keyword(s):  
Ohmic Heating ◽  
Earth’S Core ◽  
Earth's Core

Azimuthal magnetic fields in the Earth's core

1993 ◽  
Vol 47 (3) ◽  
pp. 461-468 ◽  
Author(s):  
Paul Lorrain
Keyword(s):  
Magnetic Fields ◽  
Earth’S Core ◽  
Earth's Core

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.

scholarly journals The Wobbly Anomaly and Other Magnetic Weirdness

Eos ◽  
2020 ◽  
Vol 101 ◽  
Author(s):  
Heather Goss
Keyword(s):  
Solar System ◽  
Magnetic Fields ◽  
Earth’S Core ◽  
Earth's Core

From the connection between Earth’s core and life on the surface, way out to the ends of the solar system, this month’s issue of Eos takes a look at the study of magnetic fields.

Earth's core lightens up

Nature ◽  
2010 ◽  
Author(s):  
Geoff Brumfiel
Keyword(s):  
Earth’S Core ◽  
Earth's Core
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