Ion Bernstein wave heating research
نویسندگان
چکیده
منابع مشابه
Electron Bernstein Wave Heating and Emission in the TCV Tokamak
Electron cyclotron heating of high density plasmas is limited due to so-called wave cut-offs. The double mode conversion scheme from O-mode to X-mode and finally to Bernstein mode O-X-B offers the possibility to overcome this limit [1]-[4]. At a particular launching angle, an O-mode wave converts to X-mode at the plasma cut-off. The power transmission function T from Oto X-mode was derived in [...
متن کاملExperimental observation of ion heating by mode- converted ion Bernstein waves in tokamak plasmas
We report the experimental observation of ion heating by the mode-converted ion Bernstein waves (MC IBWs) in tokamak plasmas. The MC IBW is created from the fast waves launched from the high-field-side antenna in the HT-7 tokamak in plasmas consisting of deuterium majority, hydrogen minority and 7Li ions. Experimental evidence and numerical simulation show that the interaction between the MC IB...
متن کاملElectron Bernstein Wave Research on CDX-U and NSTX
Mode-converted electron Bernstein waves (EBWs) potentially allow the measurement of local electron temperature (Te) and the implementation of local heating and current drive in spherical torus (ST) devices, which are not directly accessible to low harmonic electron cyclotron waves. This paper reports on the measurement of X-mode radiation mode-converted from EBWs observed normal to the magnetic...
متن کاملStochastic Ion Heating by a Lower Hybrid Wave: II
∣ ≪ |k⊥| and ω ≫ Ωi) in a tokamak plasma is studied. For ions satisfying v⊥ > ω/k⊥, the Lorentz force law for the ions is reduced to a set of difference equations which give the Larmor radius and phase of an ion on one cyclotron orbit in terms of these quantities a cyclotron period earlier. From these difference equations an earlier result [Phys. Fluids 21, 1584 (1978)] that above a certain wav...
متن کاملComparison between off-resonance and electron Bernstein waves heating regime in a microwave discharge ion source.
A microwave discharge ion source (MDIS) operating at the Laboratori Nazionali del Sud of INFN, Catania has been used to compare the traditional electron cyclotron resonance (ECR) heating with an innovative mechanisms of plasma ignition based on the electrostatic Bernstein waves (EBW). EBW are obtained via the inner plasma electromagnetic-to-electrostatic wave conversion and they are absorbed by...
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ژورنال
عنوان ژورنال: Physics of Fluids B: Plasma Physics
سال: 1993
ISSN: 0899-8221
DOI: 10.1063/1.860569