title: Density gradient stabilization of electron temperature gradient driven turbulence in a spherical tokamak.
abstract: In this Letter we report the first clear experimental observation of density gradient stabilization of electron temperature gradient driven turbulence in a fusion plasma. It is observed that longer wavelength modes, k(⊥)ρ(s) ≲ 10, are most stabilized by density gradient, and the stabilization is accompanied by about a factor of 2 decrease in the plasma effective thermal diffusivity.
authors: Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543, USA.
authors: Y
authors: Y
authors: Ren
authors: S M
authors: SM
authors: Kaye
authors: E
authors: E
authors: Mazzucato
authors: W
authors: W
authors: Guttenfelder
authors: R E
authors: RE
authors: Bell
authors: C W
authors: CW
authors: Domier
authors: B P
authors: BP
authors: LeBlanc
authors: K C
authors: KC
authors: Lee
authors: N C
authors: NC
authors: Luhmann
authors: D R
authors: DR
authors: Smith
authors: H
authors: H
authors: Yuh