Overview of physics studies on ASDEX Upgrade
Review article, 2019

The ASDEX Upgrade (AUG) programme, jointly run with the EUROfusion MST1 task force, continues to significantly enhance the physics base of ITER and DEMO. Here, the full tungsten wall is a key asset for extrapolating to future devices. The high overall heating power, flexible heating mix and comprehensive diagnostic set allows studies ranging from mimicking the scrape-off-layer and divertor conditions of ITER and DEMO at high density to fully non-inductive operation (q 95 = 5.5, ) at low density. Higher installed electron cyclotron resonance heating power 6 MW, new diagnostics and improved analysis techniques have further enhanced the capabilities of AUG. Stable high-density H-modes with MW m-1 with fully detached strike-points have been demonstrated. The ballooning instability close to the separatrix has been identified as a potential cause leading to the H-mode density limit and is also found to play an important role for the access to small edge-localized modes (ELMs). Density limit disruptions have been successfully avoided using a path-oriented approach to disruption handling and progress has been made in understanding the dissipation and avoidance of runaway electron beams. ELM suppression with resonant magnetic perturbations is now routinely achieved reaching transiently . This gives new insight into the field penetration physics, in particular with respect to plasma flows. Modelling agrees well with plasma response measurements and a helically localised ballooning structure observed prior to the ELM is evidence for the changed edge stability due to the magnetic perturbations. The impact of 3D perturbations on heat load patterns and fast-ion losses have been further elaborated. Progress has also been made in understanding the ELM cycle itself. Here, new fast measurements of and E r allow for inter ELM transport analysis confirming that E r is dominated by the diamagnetic term even for fast timescales. New analysis techniques allow detailed comparison of the ELM crash and are in good agreement with nonlinear MHD modelling. The observation of accelerated ions during the ELM crash can be seen as evidence for the reconnection during the ELM. As type-I ELMs (even mitigated) are likely not a viable operational regime in DEMO studies of 'natural' no ELM regimes have been extended. Stable I-modes up to have been characterised using -feedback. Core physics has been advanced by more detailed characterisation of the turbulence with new measurements such as the eddy tilt angle - measured for the first time - or the cross-phase angle of and fluctuations. These new data put strong constraints on gyro-kinetic turbulence modelling. In addition, carefully executed studies in different main species (H, D and He) and with different heating mixes highlight the importance of the collisional energy exchange for interpreting energy confinement. A new regime with a hollow profile now gives access to regimes mimicking aspects of burning plasma conditions and lead to nonlinear interactions of energetic particle modes despite the sub-Alfvénic beam energy. This will help to validate the fast-ion codes for predicting ITER and DEMO.

magnetic confinement

nuclear fusion

DEMO

tokamak physics

ITER

Author

H.F. Meyer

United Kingdom Atomic Energy Authority

C. Angioni

Max Planck Society

C.G. Albert

Max Planck Society

N. Arden

Max Planck Society

R. Arredondo Parra

Max Planck Society

O. Asunta

Aalto University

M. De Baar

DIFFER - Dutch Institute for Fundamental Energy Research

M. Balden

Max Planck Society

V. Bandaru

Max Planck Society

K. Behler

Max Planck Society

A. Bergmann

Max Planck Society

J. Bernardo

Instituto Superior Tecnico

M. Bernert

Max Planck Society

A. Biancalani

Max Planck Society

R. Bilato

Max Planck Society

G. Birkenmeier

Max Planck Society

T.C. Blanken

Eindhoven University of Technology

V. Bobkov

Max Planck Society

A. Bock

Max Planck Society

T. Bolzonella

Consorzio Rfx

A. Bortolon

Princeton Plasma Physics Laboratory

B. Böswirth

Max Planck Society

C. Bottereau

The French Alternative Energies and Atomic Energy Commission (CEA)

A. Bottino

Max Planck Society

H. Van Den Brand

DIFFER - Dutch Institute for Fundamental Energy Research

S. Brezinsek

Forschungszentrum Jülich

D. Brida

Max Planck Society

F. Brochard

University of Lorraine

C. Bruhn

Max Planck Society

J. Buchanan

United Kingdom Atomic Energy Authority

A. Buhler

Max Planck Society

A. Burckhart

Max Planck Society

Y. Camenen

Physique des Interactions Ioniques et Moleculaires

D. Carlton

Max Planck Society

M. Carr

United Kingdom Atomic Energy Authority

D. Carralero

Max Planck Society

C. Castaldo

ENEA Centro Ricerche Frascati

M. Cavedon

Max Planck Society

C. Cazzaniga

Consorzio Rfx

S. Ceccuzzi

ENEA Centro Ricerche Frascati

C. Challis

United Kingdom Atomic Energy Authority

A. V. Chankin

Max Planck Society

S. Chapman

The University of Warwick

C. Cianfarani

ENEA Centro Ricerche Frascati

F. Clairet

The French Alternative Energies and Atomic Energy Commission (CEA)

S. Coda

Ecole Polytechnique Federale De Lausanne

R. Coelho

Instituto Superior Tecnico

J.W. Coenen

Forschungszentrum Jülich

L. Colas

The French Alternative Energies and Atomic Energy Commission (CEA)

G.D. Conway

Max Planck Society

S. Costea

University of Innsbruck

D. Coster

Max Planck Society

T.B. Cote

University of Wisconsin Madison

A. Creely

Massachusetts Institute of Technology (MIT)

G. Croci

Istituto Di Fisica Del Plasma Piero Caldirola, Milan

G. Cseh

MTA KFKI RMKI

A. Czarnecka

Instytut Problemow Jadrowyc

I. Cziegler

University of York

O. D'Arcangelo

ENEA Centro Ricerche Frascati

P. David

Max Planck Society

C. Day

Karlsruhe Institute of Technology (KIT)

R. Delogu

Istituto Di Fisica Del Plasma Piero Caldirola, Milan

P. De Marné

Max Planck Society

S.S. Denk

Max Planck Society

P. Denner

Forschungszentrum Jülich

M. Dibon

Max Planck Society

A. Di Siena

Max Planck Society

D. Douai

The French Alternative Energies and Atomic Energy Commission (CEA)

A. Drenik

Max Planck Society

R. Drube

Max Planck Society

M. Dunne

Max Planck Society

B. Duval

Ecole Polytechnique Federale De Lausanne

R. Dux

Max Planck Society

T. Eich

Max Planck Society

S. Elgeti

Max Planck Society

K. Engelhardt

Max Planck Society

Boglarka Erdos

MTA KFKI RMKI

I. Erofeev

Max Planck Society

B. Esposito

ENEA Centro Ricerche Frascati

E. Fable

Max Planck Society

M. Faitsch

Max Planck Society

U. Fantz

Max Planck Society

H. Faugel

Max Planck Society

I. Faust

Max Planck Society

F Felici

Ecole Polytechnique Federale De Lausanne

Jorge Ferreira

Instituto Superior Tecnico

S. Fietz

Max Planck Society

A. Figuereido

Instituto Superior Tecnico

R. Fischer

Max Planck Society

O. Ford

Max Planck Society

L. Frassinetti

Royal Institute of Technology (KTH)

S. Freethy

Max Planck Society

M. Fröschle

Max Planck Society

G. Fuchert

Max Planck Society

J.C. Fuchs

Max Planck Society

H. Fünfgelder

Max Planck Society

K. Galazka

Instytut Problemow Jadrowyc

J. Galdon-Quiroga

Max Planck Society

A. Gallo

The French Alternative Energies and Atomic Energy Commission (CEA)

Y. Gao

Forschungszentrum Jülich

S. Garavaglia

Istituto Di Fisica Del Plasma Piero Caldirola, Milan

A. Garcia-Carrasco

Royal Institute of Technology (KTH)

M. Garcia-Munoz

University of Seville

B. Geiger

Max Planck Society

L. Giannone

Max Planck Society

L. Gil

Instituto Superior Tecnico

E. Giovannozzi

ENEA Centro Ricerche Frascati

C. Gleason-González

Karlsruhe Institute of Technology (KIT)

S. Glöggler

Max Planck Society

M. Gobbin

Consorzio Rfx

T. Görler

Max Planck Society

I. Gomez Ortiz

Max Planck Society

J. Gonzalez Martin

University of Seville

T. Goodman

Ecole Polytechnique Federale De Lausanne

G. Gorini

University of Milano-Bicocca

D. Gradic

Max Planck Society

A. Grater

Max Planck Society

G. Granucci

Istituto Di Fisica Del Plasma Piero Caldirola, Milan

H. Greuner

Max Planck Society

M. Griener

Max Planck Society

M. Groth

Aalto University

A. Gude

Max Planck Society

S. Günter

Max Planck Society

L. Guimarais

Instituto Superior Tecnico

G. Haas

Max Planck Society

A.H. Hakola

Technical Research Centre of Finland (VTT)

C. Ham

United Kingdom Atomic Energy Authority

T. Happel

Max Planck Society

N. Den Harder

Max Planck Society

G.F. Harrer

Vienna University of Technology

J.R. Harrison

United Kingdom Atomic Energy Authority

V. Hauer

Karlsruhe Institute of Technology (KIT)

T. Hayward-Schneider

Max Planck Society

C. C. Hegna

University of Wisconsin Madison

B. Heinemann

Max Planck Society

S. Heinzel

Max Planck Society

T. Hellsten

General Atomics

S.S. Henderson

United Kingdom Atomic Energy Authority

P. Hennequin

École polytechnique

A. Herrmann

Max Planck Society

M.F. Heyn

Technische Universität Graz

E. Heyn

Institut für Grenzflachenverfahrenstechnik und Plasmatechnologie

F. Hitzler

Max Planck Society

J. Hobirk

Max Planck Society

K. Höfler

Max Planck Society

M. Hölzl

Max Planck Society

T. Höschen

Max Planck Society

J.H. Holm

Technical University of Denmark (DTU)

C. Hopf

Max Planck Society

W.A. Hornsby

Max Planck Society

L. Horvath

Budapest University of Technology and Economics

A. Houben

University of Lorraine

A. Huber

Forschungszentrum Jülich

V. Igochine

Max Planck Society

T. Ilkei

MTA KFKI RMKI

I. Ivanova-Stanik

Instytut Problemow Jadrowyc

W. Jacob

Max Planck Society

A.S. Jacobsen

Max Planck Society

F. Janky

Max Planck Society

A. Jansen Van Vuuren

Max Planck Society

A. Jardin

Polish Academy of Sciences

F. Jaulmes

DIFFER - Dutch Institute for Fundamental Energy Research

Frank Jenko

Max Planck Society

T. Jensen

Technical University of Denmark (DTU)

E. Joffrin

The French Alternative Energies and Atomic Energy Commission (CEA)

C.-P. Kasemann

Max Planck Society

A. Kallenbach

Max Planck Society

S. Kálvin

MTA KFKI RMKI

M. Kantor

DIFFER - Dutch Institute for Fundamental Energy Research

A. Kappatou

Max Planck Society

O. Kardaun

Max Planck Society

J. Karhunen

DIFFER - Dutch Institute for Fundamental Energy Research

S. Kasilov

Technische Universität Graz

Yevgen Kazakov

Royal Military Academy

W. Kernbichler

Technische Universität Graz

A. Kirk

United Kingdom Atomic Energy Authority

S. Kjer Hansen

Max Planck Society

V. Klevarova

Ghent university

G. Kocsis

MTA KFKI RMKI

A. Köhn

Max Planck Society

M. Koubiti

Physique des Interactions Ioniques et Moleculaires

K. Krieger

Max Planck Society

A. Krivska

Royal Military Academy

A. Kramer-Flecken

Forschungszentrum Jülich

O. Kudlacek

Max Planck Society

Taina Kurki-Suonio

Aalto University

B. Kurzan

Max Planck Society

B. Labit

Ecole Polytechnique Federale De Lausanne

K. Lackner

Max Planck Society

F. Laggner

Vienna University of Technology

P.T. Lang

Max Planck Society

Ph Lauber

Max Planck Society

A. Lebschy

Max Planck Society

N. Leuthold

Max Planck Society

M. Li

Max Planck Society

O. Linder

Max Planck Society

B. Lipschultz

University of York

F. Liu

ITER

Y. Liu

United Kingdom Atomic Energy Authority

A. Lohs

Max Planck Society

Z. Lu

Max Planck Society

T. Luda Di Cortemiglia

Max Planck Society

N.C. Luhmann

University of California

R. Lunsford

Princeton Plasma Physics Laboratory

T. Lunt

Max Planck Society

A Lyssoivan

Royal Military Academy

T. Maceina

Max Planck Society

J. Madsen

Technical University of Denmark (DTU)

R. Maggiora

Polytechnic University of Turin

H. Maier

Max Planck Society

O. Maj

Max Planck Society

J. Mailloux

United Kingdom Atomic Energy Authority

R. Maingi

Princeton Plasma Physics Laboratory

E. Maljaars

Eindhoven University of Technology

P. Manas

Max Planck Society

A. Mancini

Istituto Di Fisica Del Plasma Piero Caldirola, Milan

A. Manhard

Max Planck Society

M.-E. Manso

Instituto Superior Tecnico

P. Mantica

Istituto Di Fisica Del Plasma Piero Caldirola, Milan

M. Mantsinen

Centro Nacional de Supercomputacion

P. Manz

Max Planck Society

Mark Maraschek

Max Planck Society

C. Martens

Max Planck Society

P. Martin

Consorzio Rfx

L. Marrelli

Consorzio Rfx

A. Martitsch

Technische Universität Graz

M. Mayer

Max Planck Society

D. Mazon

The French Alternative Energies and Atomic Energy Commission (CEA)

P. McCarthy

University College Cork

R. McDermott

Max Planck Society

H. Meister

Max Planck Society

A. Medvedeva

Max Planck Society

R. Merkel

Max Planck Society

A. Merle

Ecole Polytechnique Federale De Lausanne

V. Mertens

Max Planck Society

D. Meshcheriakov

Max Planck Society

O. Meyer

The French Alternative Energies and Atomic Energy Commission (CEA)

J. Miettunen

DIFFER - Dutch Institute for Fundamental Energy Research

D. Milanesio

Polytechnic University of Turin

F. Mink

Max Planck Society

A. Mlynek

Max Planck Society

F. Monaco

Max Planck Society

C. Moon

Max Planck Society

F. Nabais

Instituto Superior Tecnico

A. Nemes-Czopf

Instytut Problemow Jadrowyc

G. Neu

Max Planck Society

R. Neu

Max Planck Society

A.H. Nielsen

Technical University of Denmark (DTU)

S. K. Nielsen

Technical University of Denmark (DTU)

V. Nikolaeva

Max Planck Society

M. Nocente

University of Milano-Bicocca

J.-M. Noterdaeme

Max Planck Society

I. Novikau

Max Planck Society

S. Nowak

Ecole Polytechnique Federale De Lausanne

M. Oberkofler

Max Planck Society

Michael Oberparleiter

Chalmers, Space, Earth and Environment, Astronomy and Plasmaphysics, Plasma Physics and Fusion Energy

R. Ochoukov

Max Planck Society

T. Odstrcil

Max Planck Society

J. Olsen

Technical University of Denmark (DTU)

F. Orain

Max Planck Society

F. Palermo

Max Planck Society

O. Pan

Max Planck Society

Gergely Papp

Max Planck Society

I. Paradela Perez

Aalto University

A. Pau

Universita degli Studi di Cagliari

G Pautasso

Max Planck Society

F. Penzel

Max Planck Society

P. Petersson

Technical Research Centre of Finland (VTT)

J. Pinzón Acosta

Max Planck Society

P. Piovesan

Consorzio Rfx

C. Piron

Consorzio Rfx

R. Pitts

ITER

U. Plank

Max Planck Society

B. Plaum

Institut für Grenzflachenverfahrenstechnik und Plasmatechnologie

B. Ploeckl

Max Planck Society

V V Plyusnin

Instituto Superior Tecnico

G.I. Pokol

Royal Military Academy

E. Poli

Max Planck Society

L. Porte

Ecole Polytechnique Federale De Lausanne

S. Potzel

Max Planck Society

D. Prisiazhniuk

Max Planck Society

T. Pütterich

Max Planck Society

M. Ramisch

Institut für Grenzflachenverfahrenstechnik und Plasmatechnologie

J. Rasmussen

Technical University of Denmark (DTU)

G.A. Rattá

Laboratorio Nacional de Fusion

S. Ratynskaia

Royal Institute of Technology (KTH)

G. Raupp

Max Planck Society

G.L. Ravera

ENEA Centro Ricerche Frascati

D. Refy

MTA KFKI RMKI

M. Reich

Max Planck Society

F. Reimold

Forschungszentrum Jülich

D. Reiser

Forschungszentrum Jülich

T. Ribeiro

Max Planck Society

J. Riesch

Max Planck Society

R. Riedl

Max Planck Society

D. Rittich

Max Planck Society

J.F. Rivero-Rodriguez

University of Seville

G. Rocchi

ENEA Centro Ricerche Frascati

M. Rodriguez-Ramos

University of Seville

V. Rohde

Max Planck Society

A. Ross

Max Planck Society

M. Rott

Max Planck Society

M. Rubel

Royal Institute of Technology (KTH)

D. Ryan

United Kingdom Atomic Energy Authority

F. Ryter

Max Planck Society

S. Saarelma

United Kingdom Atomic Energy Authority

M. Salewski

Technical University of Denmark (DTU)

A. Salmi

Aalto University

L. Sanchis-Sanchez

University of Seville

J. Santos

Instituto Superior Tecnico

O. Sauter

Ecole Polytechnique Federale De Lausanne

A. Scarabosio

Max Planck Society

G. Schall

Max Planck Society

K. Schmid

Max Planck Society

O. Schmitz

Centro Nacional de Supercomputacion

P.A. Schneider

Max Planck Society

R. Schrittwieser

University of Innsbruck

M. Schubert

Max Planck Society

T. Schwarz-Selinger

Max Planck Society

Josef Schweinzer

Max Planck Society

B. Scott

Max Planck Society

T. Sehmer

Max Planck Society

E. Seliunin

Instituto Superior Tecnico

M. Sertoli

Max Planck Society

A. Shabbir

Ghent university

A. Shalpegin

Ecole Polytechnique Federale De Lausanne

L. Shao

Chinese Academy of Sciences

S. E. Sharapov

United Kingdom Atomic Energy Authority

G. Sias

Universita degli Studi di Cagliari

M. Siccinio

Max Planck Society

B. Sieglin

Max Planck Society

A. Sigalov

Max Planck Society

A. Silva

Instituto Superior Tecnico

C. Silva

Instituto Superior Tecnico

D. Silvagni

Max Planck Society

P. Simon

Max Planck Society

J. Simpson

United Kingdom Atomic Energy Authority

E. Smigelskis

Max Planck Society

A. Snicker

Aalto University

C. Sommariva

The French Alternative Energies and Atomic Energy Commission (CEA)

C. Sozzi

Istituto Di Fisica Del Plasma Piero Caldirola, Milan

M. Spolaore

Consorzio Rfx

A. Stegmeir

Max Planck Society

M. Stejner

Technical University of Denmark (DTU)

J. Stober

Max Planck Society

U. Stroth

Max Planck Society

E. Strumberger

Max Planck Society

G. Suarez

Max Planck Society

H.-J. Sun

Max Planck Society

W. Suttrop

Max Planck Society

E. Sytova

Max Planck Society

T. Szepesi

MTA KFKI RMKI

B. Tál

Max Planck Society

T. Tala

Technical Research Centre of Finland (VTT)

G. Tardini

Max Planck Society

M. Tardocchi

Istituto Di Fisica Del Plasma Piero Caldirola, Milan

M. Teschke

Max Planck Society

D. Terranova

Consorzio Rfx

W. Tierens

Max Planck Society

E. Thorén

Royal Institute of Technology (KTH)

Daniel Told

Max Planck Society

P. Tolias

Royal Institute of Technology (KTH)

O. Tudisco

ENEA Centro Ricerche Frascati

W. Treutterer

Max Planck Society

E. Trier

Max Planck Society

M. Tripský

Royal Military Academy

M. Valisa

Consorzio Rfx

Martin Valovic

United Kingdom Atomic Energy Authority

B. Vanovac

Max Planck Society

D. Van Vugt

Eindhoven University of Technology

S. Varoutis

Karlsruhe Institute of Technology (KIT)

Geert Verdoolaege

Ghent university

N. Vianello

Consorzio Rfx

J. Vicente

Instituto Superior Tecnico

T. Vierle

Max Planck Society

E. Viezzer

University of Seville

U. Von Toussaint

Max Planck Society

D. Wagner

Max Planck Society

N. Wang

The French Alternative Energies and Atomic Energy Commission (CEA)

X. Wang

Max Planck Society

M. Weiland

Max Planck Society

A.E. White

Massachusetts Institute of Technology (MIT)

S. Wiesen

Forschungszentrum Jülich

M. Willensdorfer

Max Planck Society

B. Wiringer

Max Planck Society

M. Wischmeier

Max Planck Society

R C Wolf

Max Planck Society

E. Wolfrum

Max Planck Society

L. Xiang

Chinese Academy of Sciences

Q. Yang

Chinese Academy of Sciences

Z. Yang

Max Planck Society

Q. Yu

Max Planck Society

R. Zagórski

Instytut Problemow Jadrowyc

I. Zammuto

Max Planck Society

W. Zhang

Max Planck Society

M.A. Van Zeeland

General Atomics

T. Zehetbauer

Max Planck Society

M. Zilker

Max Planck Society

S. Zoletnik

MTA KFKI RMKI

H. Zohm

Max Planck Society

Nuclear Fusion

0029-5515 (ISSN)

Vol. 59 11 112014

Subject Categories

Energy Engineering

Other Physics Topics

Fusion, Plasma and Space Physics

DOI

10.1088/1741-4326/ab18b8

More information

Latest update

12/7/2019