Fluctuations in the Ion-Cyclotron-Frequency Range: Possible Measurement ofTeTiin Tokamaks

Autor:	T. Lehner, J. P. M. Schmitt
Rok vydání:	1980
Předmět:	Physics Tokamak Gyroradius Cyclotron General Physics and Astronomy Ion law.invention Wavelength Physics::Plasma Physics law Dispersion relation Physics::Space Physics Electron temperature Plasma diagnostics Atomic physics
Zdroj:	Physical Review Letters. 45:1185-1188
ISSN:	0031-9007
DOI:	10.1103/physrevlett.45.1185
Popis:	The thermal density fluctuations in a typical tokamak plasma, for a wave vector perpendicular to the magnetic field and for a wavelength of the order of the ion gyroradius, are shown to be maximum at the frequency of the zero-group-velocity ion cyclotron waves. This frequency is sensitive to the ion- to electron-temperature ratio and the spectrum remains peaked despite a poor scattering-vector definition and destabilizing effects such as presence of a current. Possible applications to tokamak diagnosis are emphasized.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::aec15ac7a0e53ac54efcfc3ba30019e0 https://doi.org/10.1103/physrevlett.45.1185 Zobrazit plný text záznamu