Nos tutelles

CNRS

Rechercher





Accueil > Français > Production scientifique > Séminaire

Plasma rotation control using large emissive cathodes

par Caroline CHAMPENOIS - publié le

lundi 28 janvier à 11h service 361

Nicolas Plihon
Laboratoire de Physique, CNRS & Ecole Normale Supérieure de Lyon, France

Abstract :
I will give an overview of our recent experimental project at ENS de Lyon where a basic magnetic induction phenomena, transport studies and plasma flow drive mechanisms and control can be studied in a dedicated plasma physics experiment in which to counter-rotating plasma column interact. A first step consists in setting into rotation a moderately magnetized plasma column using large emissive cathodes. I will discuss the flow drive mechanism and show that the shear of azimutal velocity can be controlled by the location of the cathodes and the intensity of the injected current. I will then discuss an experimental characterization of the behavior of drift waves when the profile of the background plasma rotation is controlled using hot emissive cathodes. Mitigation or enhancement of drift waves (on the amplitude or azimuthal mode number) is observed depending on the plasma rotation profile.

contact : Alexandre Escarguel

Agenda

Ajouter un événement iCal