Geodesic acoustic modes (GAMs) are ubiquitous oscillatory flow phenomena observed in
toroidal magnetic confinement fusion plasmas, such as tokamaks and stellarators. They are …

Gas puff imaging (GPI) is a diagnostic of plasma turbulence which uses a puff of neutral gas
at the plasma edge to increase the local visible light emission for improved space-time …

Abstract Since the 2012 International Atomic Energy Agency Fusion Energy Conference
(IAEA-FEC), significant advances in both physics and technology has been made on the …

The use of low-dimensional dynamical systems as reduced models for plasma dynamics is
useful as solving an initial value problem requires much less computational resources than …

Recent experimental and simulation work has substantially advanced the understanding of
L-mode plasma edge turbulence and plasma flows and their mutual interaction across the L …

Results from recent experiment and numerical simulation point towards a picture of the LH
transition in which edge shear flows interacting with edge turbulence create the conditions …

The transport of particles and energy into the scrape-off layer (SOL) region at the outboard
midplane of medium-sized tokamaks, operating in low confinement mode, is investigated by …

Limit-cycle oscillations (LCOs) close to the power threshold of L-to H-mode transitions are
investigated in plasmas of ASDEX Upgrade. During this phase, referred to as I-phase, a …

Blob properties are studied in the scrape-off layer of the tokamak ASDEX Upgrade with a
fast camera. The gas-puff imaging technique is used to investigate the detection rate as well …

The turbulence and flows at the plasma edge during the L–I–H, L–I–L and single-step L–H
transitions have been measured directly using two reciprocating Langmuir probe systems at …