6533b85afe1ef96bd12b8d55

RESEARCH PRODUCT

Letter

Carlos B. Da SilvaB. ViolaE. LercheM. MaslovMaryna ChernyshovaTeddy CraciunescuPaulo CarvalhoPh. JacquetE. TholerusE. R. SolanoI. JepuS. VartanianJ. M. FontdecabaA. KappatouV.v. ParailJ. C. HillesheimE. DelabieE. De La LunaG. BirkenmeierG. BirkenmeierF.g. RiminiEwa PawelecP. SirenA. LoarteA. ShawIvo S. CarvalhoF. Parra DiazA. BobocH. WeisenE. Litherland-smithGabor SzepesiM. LennholmR. HenriquesŽIga ŠTancarD. KingJet Contributors

subject

PhysicsNuclear and High Energy PhysicsJet (fluid)L–H transitionchemistry.chemical_elementPlasmaheliumCondensed Matter Physics01 natural sciences010305 fluids & plasmasddc:chemistry0103 physical sciencesAtomic physics010306 general physicstokamakHelium

description

We present a study of the power threshold for L–H transitions (PLH) in almost pure helium plasmas, obtained in recent experiments at JET with an ITER-like wall (Be wall and W divertor). The most notable new result is that the density at which PLH is minimum, ${\bar{n}}_{\text{e},\mathrm{min}}$, is considerably higher for helium than for deuterium and hydrogen plasmas. We discuss the possible implications for ITER in its pre-fusion operating power phase.

10.1088/1741-4326/ac2b76https://mediatum.ub.tum.de/doc/1653700/document.pdf