Identification of plasma-edge-related operational regime boundaries and the effect of edge instability on confinement in ASDEX Upgrade

W Suttrop, M Kaufmann, HJ De Blank… - Plasma Physics and …, 1997 - iopscience.iop.org
Local edge parameters on the ASDEX Upgrade tokamak are investigated at the L-mode to H-
mode transition, during phases with various types of edge-localized modes (ELMs), and at …

The I-mode confinement regime at ASDEX Upgrade: global properties and characterization of strongly intermittent density fluctuations

T Happel, P Manz, F Ryter, M Bernert… - Plasma Physics and …, 2016 - iopscience.iop.org
Abstract Properties of the I-mode confinement regime on the ASDEX Upgrade tokamak are
summarized. A weak dependence of the power threshold for the LI transition on the toroidal …

Effect of plasma shape variation on ELMs and H-mode pedestal properties in ASDEX Upgrade

W Suttrop, O Gruber, B Kurzan… - Plasma Physics and …, 2000 - iopscience.iop.org
The effect of plasma shape variation (in particular, variation of the upper and lower
triangularity δ) on edge localized modes (ELMs) and H-mode pedestal properties in ASDEX …

Inter-ELM behaviour of the electron density and temperature pedestal in ASDEX Upgrade

A Burckhart, E Wolfrum, R Fischer… - Plasma Physics and …, 2010 - iopscience.iop.org
The behaviour of the recovery of the electron temperature and density during individual ELM
(edge localized mode) cycles has been examined closely for a series of type I ELMy H-mode …

Characterization of edge profiles and fluctuations in discharges with type-II and nitrogen-mitigated edge localized modes in ASDEX Upgrade

E Wolfrum, M Bernert, JE Boom… - Plasma Physics and …, 2011 - iopscience.iop.org
Edge localized modes (ELMs) with high frequency and low power loss (type-II ELMs) occur
in high triangularity, near double null configurations in ASDEX Upgrade with full tungsten …

Global performance enhancements via pedestal optimisation on ASDEX Upgrade

MG Dunne, L Frassinetti, MNA Beurskens… - Plasma Physics and …, 2016 - iopscience.iop.org
Results of experimental scans of heating power, plasma shape, and nitrogen content are
presented, with a focus on global performance and pedestal alteration. In detailed scans at …

Studies of the 'Quiescent H-mode'regime in ASDEX Upgrade and JET

W Suttrop, V Hynönen, T Kurki-Suonio, PT Lang… - Nuclear …, 2005 - iopscience.iop.org
The stationary edge localized mode (ELM)-free'Quiescent H-mode'(QH-mode) regime,
obtained with counter neutral beam injection, is studied in ASDEX Upgrade and Joint …

Stationary advanced scenarios with internal transport barrier on ASDEX upgrade

RC Wolf, O Gruber, M Maraschek, R Dux… - Plasma Physics and …, 1999 - iopscience.iop.org
Steady-state discharges with improved core confinement and H-mode edge with edge
localized modes (ELMs) are investigated. In plasmas with an upper triangularity top close to …

Stationary ELM-free H-mode in ASDEX Upgrade

L Gil, C Silva, T Happel, G Birkenmeier… - Nuclear …, 2020 - iopscience.iop.org
A stationary H-mode without edge localized modes (ELMs) has been recently achieved in
the ASDEX Upgrade tokamak by applying central electron cyclotron resonance heating …

Energy and particle losses during type-I ELMy H-mode in ASDEX Upgrade

H Urano, W Suttrop, LD Horton… - Plasma physics and …, 2003 - iopscience.iop.org
Characteristics of edge-localized mode (ELM) energy and particle losses in type-I ELMy H-
mode plasmas on ASDEX Upgrade are investigated by a large data set with as much as …