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Thursday, July 30, 2020 | History

1 edition of Theory of second harmonic electron cyclotron resonance heating of tokamak plasma found in the catalog.

Theory of second harmonic electron cyclotron resonance heating of tokamak plasma

Theory of second harmonic electron cyclotron resonance heating of tokamak plasma

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Published by Naval Research Laboratory in Washington, D.C .
Written in English

    Subjects:
  • Tokamaks

  • Edition Notes

    StatementBertram Hui ... [et al.]
    SeriesNRL memorandum report -- 4101
    ContributionsHui, Bertram, Naval Research Laboratory (U.S.). Plasma Physics Division
    The Physical Object
    Paginationiii, 13 p. :
    Number of Pages13
    ID Numbers
    Open LibraryOL14859251M

    Plasma heating with the fast magnetosonic waves in the ion cyclotron range of frequencies (ICRF) is one of the auxiliary heating schemes of Aditya tokamak. Numerical simulation of second-harmonic resonance heating scenarios in low-temperature, low-density Aditya plasma has been carried out for fast magnetosonic wave absorption in ICRF range. Fusion Plasma Physics, Second Edition Prof. Weston M. Stacey(auth.) This revised and enlarged second edition of the popular textbook and reference contains comprehensive treatments of both the established foundations of magnetic fusion plasma physics and of the newly developing areas of active research.

    Electron Bernstein emission diagnostic of electron temperature profile at W7-AS Stellarator Inauguraldissertation zur Erlangung des akademischen Grades eines do. For a long time, the gyrotrons were primarily developed for electron cyclotron heating and current drive of plasmas in controlled fusion reactors where a multi-megawatt, quasi-continuous millimeter-wave power is required. In addition to this important application, there are other applications (and their number increases with time) which do not require a very high power Cited by:

    By means of dual GHz and 28 GHz waves, the over dense 25 kA plasma with central high energetic-electron pressure was non-inductively built up and sustained for s by Electron Bernstein Wave Heating (EBWH) effect between GHz fundamental and 2nd harmonic Electron Cyclotron (EC) layers.   Wukitch, Stephen [] Massachusetts Institute of Technology Citation: For pioneering contributions to the physics of high power heating of fusion plasmas using ion cyclotron RF waves, including fundamental advances in understanding RF sheaths and plasma-wall interactions, ICRF heating, flow drive and current drive, and study and application of wave .


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Theory of second harmonic electron cyclotron resonance heating of tokamak plasma Download PDF EPUB FB2

Get this from a library. Theory of second harmonic electron cyclotron resonance heating of tokamak plasma. [Bertram Hui; Naval Research Laboratory (U.S.). Plasma Physics Division.;].

Theory of Second Harmonic Electron Cyclotron Resonance Heating of Tokamak Plasma. Naval Research Laboratory Memorandum Report and Phys. Fluids to be published. Ioffe, M.S., B.I. Kanaev, V.P. Pastukhov and E.E.

Yushmanov ().Author: T.M. Antonsen, M. Porkolab. Topics covered range from plasma heating activities in countries such as Japan and the United States to electron cyclotron heating, lower hybrid resonance, and ion cyclotron heating.

Comprised of 62 chapters, this volume first looks at radio-frequency heating efforts in the European Community as well as heating of toroidal plasmas in the United. Various heating schemes based on the cyclotron resonances between the plasma ions and the applied ICRF waves have been used, including second harmonic tritium, minority deuterium, minority helium-3, mode conversion at the D-T ion-ion hybrid layer, and ion Bernstein wave heating.

Second harmonic tritium heating was first shown to be effective in. Experimental measurements of electron-cyclotron resonance heating (ECRH) of a highly ionized plasma in mirror geometry is compared to a two-dimensional, time Author: Greg Hammett.

These proceedings present the latest results in electron cyclotron emission, heating and current drive, with an emphasis on the physics and technology of Electron Cyclotron Emission, Electron Cyclotron Heating and Electron Cyclotron Current Drive applied to magnetic fusion research.

A theoretical study of energy transfer by electron cyclotron resonance to tokamak plasma is presented.

Then the predictions of linear theory including relativistic effects on. The 12th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating (EC) was held in Aix-en-Provence (France) from May 13 to 16, This workshop was concerned with the interaction of electromagnetic waves and hot plasmas, a subject of great importance in the framework of research on controlled thermonuclear.

@article{osti_, title = {Heating tokamaks via the ion-cyclotron and ion-ion hybrid resonances}, author = {Perkins, F.W.}, abstractNote = {For the ion-ion hybrid resonance it is shown that: (1) the energy absorption occurs via a sequence of mode conversions; (2) a poloidal field component normal to the ion-ion hybrid mode conversion surface strongly influences the.

Second harmonic ion cyclotron resonance heating by the fast magnetosonic wave on the PLT tokamak: J.C. Hosea Name Title Advisor(s) Schultz, Carl Goran. Tearing modes in tokamak plasmas with and without ion beam driver currents: P.

Kaw: Wurden, Glen A. CO2 laser scattering on rf waves in ACT-I: M. Ono, K.-L. Wong: MacKay, Robert S. The stability of a plasma is an important consideration in the study of plasma a system containing a plasma is at equilibrium, it is possible for certain parts of the plasma to be disturbed by small perturbative forces acting on stability of the system determines if the perturbations will grow, oscillate, or be damped out.

In many cases, a plasma can be treated. A powerful electron cyclotron resonance heating (ECRH) system is installed on TCV. 9 gyrotrons provide a total power of MW. A well thought-out system of wave launchers allows for localised plasma heating or toroidal injection for current drive.

Effects of the EC waves on the plasma are intensively investigated on TCV. These include: Improvement of the confinement properties. The frequency is tuned to the cyclotron resonance of the electrons in the magnetic field, anywhere between 2– GHz, hence it is often referred to as Electron Cyclotron Resonance Heating (ECRH).

The upcoming ITER thermonuclear reactor [15] will use up to. in which is the plasma frequency, the cyclotron frequency, the Larmor radius, k // and are the parallel and perpendicular wave numbers w.r.t. the static magnetic field, respectively, is the thermal velocity, N the cyclotron harmonic and E + the wave component rotating in the sense of the ions.

The Gaussian factor on the right is maximal at the cyclotron layer and dies away. Electron Cyclotron Heating p. 43 Summary of ECRH Experiments p. 44 ECRH and ECCD in Next-Generation Fusion Devices p. 47 Plasma Initiation and Startup Studies in the DIII-D Tokamak with Second Harmonic Electron Cyclotron Assist p.

57 EBW Assisted Plasma Current Startup in. On the small TMVCh tokamak, groundbreaking experiments were conducted on ion-cyclotron plasma heating with the discovery of ion minority heating, ion second harmonic heating, ion–ion hybrid resonance phenomena at comparable amounts of H and D ions and fast wave eigenmodes excitation.

These created the basis of the ICRF physics later Cited by: 14th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating, Santorini, GREECE, Mayp. DOI: /FSTA Detailed record. ITER is the world’s largest fusion experiment.

Thirty-five nations are collaborating to build and operate the ITER Tokamak, the most complex machine ever designed, to prove that fusion is a viable source of large-scale, safe, and environmentally friendly energy for the planet. K.R. Chu and B. Hui, "Analysis of Electron Cyclotron Resonance Heating in a Weakly Relativistic Plasma," Phys.

Fiu 69 (). V.L. Granatstein and K.R. Chu, "Electron Cyclotron Resonance Heating of A Spheromak Plasma," IEEE-Trans Plasma Science, P, (). Experiments in the T tokamak (R=m, a=m) have demonstrated possibility of control of the plasma current decay and prevention of formation of the non-thermal (Eg>keV) electron beams after an energy quench at the density limit disruption using electron cyclotron heating (ECRH) and pre-programmed Ohmic (OH) power supply system.

Japan is procuring 8 of the 24 energy-generating devices of the electron cyclotron resonance heating system, including 4 required by First Plasma.

At the National Institutes for Quantum and Radiological Science and Technology (QST), all four have been manufactured and two have completed factory acceptance tests. Editorial Reviews. From the reviews: “Plasma Physics offers a broad and modern introduction to the many aspects of plasma science.

A curious student or interested researcher could track down laboratory notes, older monographs, and obscure papers. with an extensive list of more than references and, in particular, its excellent overview of the various Author: Alexander Piel.Radio-frequency (rf) waves can penetrate fusion plasmas and deposit energy and momentum through collisionless mechanisms, resulting in plasma heating and, in some cases, current drive and flow drive.

The advantage of this noninductive current drive is that a tokamak-type fusion reactor can be operated at a steady state. Meanwhile, an appropriate profile of plasma current .