Study of the change of electron temperature inside magnetic island caused by localized radio frequency heating

Yang, J.; Zhu, S.; Yu, Q.; Zhuang, G.
May 2010
Physics of Plasmas;May2010, Vol. 17 Issue 5, p052309
Academic Journal
The change in the electron temperature inside magnetic island caused by localized radio frequency (rf) heating is studied numerically by solving the two-dimensional energy transport equation, to investigate the dependence of the temperature change on the location and width of the rf power deposition along the minor radius and the helical angle, the island width, and the ratio between the parallel and the perpendicular heat conductivity. Based on obtained numerical results, suggestions for optimizing the island stabilization by localized rf heating are made.


Related Articles

  • Applying alpha-channeling to mirror machines. Zhmoginov, A. I.; Fisch, N. J. // Physics of Plasmas;May2012, Vol. 19 Issue 5, p055702 

    The α-channeling effect entails the use of radio-frequency waves to expel and cool high-energetic α particles born in a fusion reactor; the device reactivity can then be increased even further by redirecting the extracted energy to fuel ions. Originally proposed for tokamaks, this...

  • Parallel forces induced by waves in ion cyclotron range of frequencies. Wang, C.Y.; Batchelor, D.B. // Physics of Plasmas;Apr95, Vol. 2 Issue 4, p1056 

    Identifies a mechanism for radio frequency (RF) wave induced force and current drive caused by a kinetic flux carried by coherent oscillations of plasma particles. Induced force along a magnetic field line by RF heating of plasmas; Effect from the kinetic flux and from the helicity related flux.

  • Analysis of a Large Orbit Backward Wave Oscillator. Choyal, Y.; Watanabe, T.; Minami, K.; Granatstein, V.L. // AIP Conference Proceedings;2003, Vol. 691 Issue 1, p406 

    The effect of the finite axial magnetic field on the excitation of a backward wave oscillator (BWO) is investigated. The driver beam is assumed to be mono-energetic helical electron beam such that all the constituent electrons have their gyration centers on the axis of the slow wave structure...

  • Detection of a radio counterpart to the 27 December 2004 giant flare from SGR 1806 - 20. Cameron, P. B.; Chandra, P.; Ray, A.; Kulkarni, S. R.; Frail, D. A.; Wieringa, M. H.; Nakar, E.; Phinney, E. S.; Miyazaki, Atsushi; Tsuboi, Masato; Okumura, Sachiko; Kawai, N.; Menten, K. M.; Bertoldi, F. // Nature;4/28/2005, Vol. 434 Issue 7037, p1112 

    It was established over a decade ago that the remarkable high-energy transients known as soft?-ray repeaters (SGRs) are located in our Galaxy and originate from neutron stars with intense (=1015G) magnetic fields-so-called‘magnetars’. On 27 December 2004, a giant flare with a...

  • Radio blast adds sparkle to nature's polar light show.  // New Scientist;2/5/2005, Vol. 185 Issue 2485, p18 

    This article informs that powerful radio waves beamed up into the sky have created artificially enhanced auroras visible to the naked eye. Natural auroras, or the northern and southern lights, occur at high latitudes where Earth's magnetic field funnels the charged particles that stream out of...

  • Nonambipolar electron source. Longmier, B.; Baalrud, S.; Hershkowitz, N. // Review of Scientific Instruments;Nov2006, Vol. 77 Issue 11, p113504 

    A radio frequency (rf) plasma-based electron source that does not rely on electron emission at a cathode surface has been constructed. All of the random electron flux incident on an exit aperture is extracted through an electron sheath resulting in total nonambipolar flow within the device when...

  • Solar Radio Spikes in 2.6 — 3.8 GHz during the 13 December 2006 Event. Wang, S. J.; Yan, Y. H.; Liu, Y. Y.; Fu, Q. J.; Tan, B. L.; Zhang, Y. // Solar Physics;Dec2008, Vol. 253 Issue 1/2, p133 

    On 13 December 2006, some unusual radio bursts in the range 2.6 – 3.8 GHz were observed during an X3.4 flare/CME event from 02:30 to 04:30 UT in active region NOAA 10930 (S06W27) with the digital spectrometers of the National Astronomical Observatories of China (NAOC). During this event...

  • Fluid-flow characterization with nuclear spins without magnetic resonance. Crawford, C. W.; Shoujun Xu; Siegel, Eric J.; Budker, Dmitry; Pines, Alexander // Applied Physics Letters;9/1/2008, Vol. 93 Issue 9, p092507 

    A technique for noninvasive monitoring of flow inside metallic enclosures using laser-based atomic magnetometry is introduced. The analyte is labeled via nuclear magnetization by magnets, thereby combining the polarization and encoding steps. No radiofrequency or audiofrequency pulses are...

  • Complex Plasmas in Strong Magnetic Field Environments. Konopka, U.; Schwabe, M.; Knapek, C.; Kretschmer, M.; Morfill, G. E. // AIP Conference Proceedings;2005, Vol. 799 Issue 1, p181 

    To complete our picture of general complex plasmas, experiments under the influence of high magnetic fields have been carried out in a radio frequency (rf) discharge with and without embedded micro-particles. The influence of the strong magnetic field on the plasma with respect to its...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics