Author: E. MazzucatoPublisher:
ISBN:
Category :
Languages : en
Pages : 11
Book Description
Relativistic Effects on Cyclotron Wave Absorption by an Energetic Electron Tail in the PLT Tokamak
Author: E. MazzucatoRelativistic Effects on Cyclotron Wave Absorption by an Energetic Electron Tail in the PLT Tokamak
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Electron cyclotron wave absorption by mildly relativistic electrons in the low density regime of the PLT tokamak is investigated. Appreciable wave damping is found for vertical propagation at frequencies of 50, 60, and 70 GHz when the spatially constant cyclotron frequency is 89 GHz. The perpendicular temperature T/sub perpendicular/(v/sub parallel/) of the fast tail is also measured from emission of radiation in the same direction. The results obtained are in satisfactory agreement with the theory of wave emission and absorption.
Energy Research Abstracts
Author: Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 784
Book Description
Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.
Experimental Investigation on Electron Cyclotron Absorption at Down-shifted Frequency in the PLT Tokamak
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The absorption of 60 GHz electron cyclotron waves, with the extraordinary mode and an oblique angle of propagation, has been investigated in the PLT tokamak in the regime of down-shifted frequencies. The production of energetic electrons, with energies of up to 300 to 400 keV, peaks at values of toroidal field (approx. =29 kG) for which the wave frequency is significantly smaller than the electron cyclotron frequency in the whole plasma region. The observations are consistent with the predictions of the relativistic theory of electron cyclotron damping at down-shifted frequency. Existing rf sources make this process a viable method for assisting the current ramp-up, and for heating the plasma of present large tokamaks.
Fusion Energy Update
Author: Theory of Electron Cyclotron Resonance Heating of Tokamak Plasmas
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 70
Book Description
A theoretical study of tokamak plasma heating by the electron cyclotron resonance is presented. The density limitations imposed by accessibility are first reviewed. Then the predictions of linear theory (including relativistic effects on the wave absorption) are examined via solution of the ray equations in a toroidal tokamak equilibrium. These solutions indicate quite favorable characteristics for large tokamaks. Finally, the possibilities of scattering of the incident heating wave by existing drift-wave-type fluctuations and of parametric instability are examined; it is tentatively concluded that parametric instabilities and wave scattering should not be important in typical situations of interest. (Author).
Government Reports Announcements & Index
Author: INIS Atomindeks
Author: Government Reports Annual Index
Author: Publisher:
ISBN:
Category : Research
Languages : en
Pages : 1084
Book Description
Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
Author: