Review of Scientific Instruments · 2009 · 33 citations · 14 references
Natural SciencesNuclear EngineeringPhysicsFusion EngineeringNuclear InstrumentationPlasma PhysicsFusion PlasmasMagnetic Confinement FusionMagnetized PlasmaNuclear FusionPlasma ConfinementPlasma DiagnosticsIon FlowLangmuir ProbesMach NumberMach Number EffectsMagnetic DiagnosticsScrape-off Layer PhysicsTokamak PhysicsTokamak Plasmas
The retarding field energy analyzer (RFA) is a simple and reliable diagnostic technique to measure the ion temperature in the scrape-off layer and edge of magnetic fusion devices. Design and operation features of a single-sided (facing the ion flow) RFA for ion temperature measurements in the Saskatchewan Torus-Modified (STOR-M) tokamak are described. Its compact size (21 x 15 x 20 mm3) allows RFA measurements without perturbing plasma significantly. Both ion and electron temperature have been measured by RFA in the STOR-M tokamak. A method is proposed to correct the effects of ion flow on the ion temperature using the simultaneously measured Mach number. The measured electron temperature is consistent with the previously reported Langmuir probe data. Abnormal behavior of the RFA has been observed in both ion and electron modes when RFA is inserted deep into the plasma.
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Retarding field energy analyzer for the JET plasma boundary
R.A. Pitts, R. Chavan, S. Davies et al. · Review of Scientific Instruments · 2003 · 81 citations · Full text
Edge ion-to-electron temperature ratio in the Tore Supra tokamak
M. Kočan, J.P. Gunn, J.‐Y. Pascal et al. · Plasma Physics and Controlled Fusion · 2008 · 59 citations