Scientific Commons: F. Ryter

Fusion Science and Technology, 55(2009) S.31-44

ELM characteristics in ASDEX Upgrade helium discharges (2009)

Scarabosio, A., Gemisic Adamov, M., Herrmann, A., Hicks, N., Müller, H. W., Pütterich, T., ...

Next Step Tokamak Physics: Confinement-oriented Global Database Analysis Otto J.W.F. Kardaun £ for the International Confinement Database Working Group (2008)

A. Kallenbach, P. Mccarthy, F. Ryter, A. Stäbler, Çåè�ëë M. Valovič, ...

Abstract. We describe and analyse an international multi-tokamak confinement database, both motivated by physics and with a view toward prediction of next-step burning-plasma experiments such as...

ALCATOR C-Mod Parameter Similarity Studies in JET, ASDEX Upgrade and ALCATOR C-Mod (2008)

W. Suttrop, L. D. Horton, A. E. Hubbard, D. Mcdonald, R. Barnsley, M. Beurskens, ...

Preprint of Paper to be submitted for publication in

H-mode confinement properties close to the power threshold in ASDEX Upgrade (2008)

Ryter, F., Fuchs, J. C., Schneider, W., Sips, A. C. C., Stäbler, A., Stober, J., ...

Experimental Study of the Ion Critical Gradient Length and Stiffness Level and the Impact of Rotational Shear in JET (2008)

Mantica, P., Ryter, F., Strintzi, D.

22nd IAEA Fusion Energy Conference, Geneva, Switzerland, October 13-18, 2008

JET confinement studies and their scaling to high βN, ITER scenarios (2008)

McDonald, D. C., Laborde, L., DeBoo, J. C., Ryter, F., Brix, M., Challis, C. D., ...

The 2008 public release of the international multi-tokamak confinement profile database (2008)

Roach, C. M., Walters, M., Budny, R. V., Imbeaux, F., Fredian, T. W., Greenwald, M., ...

Physics Insight and Performance Benefit from Plasma Shaping Experiments in MHD and Energy Transport in the TCV Tokamak (2008)

Pochelon, A., Brunner, S., Camenen, Y., Coda, S., Graves, J., Marinoni, A., ...

The unique flexibility of TCV in plasma shaping has been exploited to address different aspects of tokamak physics in which the plasma shape may play a role. This paper summarizes the experiments...

L.Giannone, U.Stroth, J.K511ermeyer, M.Alexander, (2007)

V. Erckmann, H. J. Hartfuss, F. Ryter, W. Suttrop

Combined analysis of steady state and transient transport by the maximum entropy method

Study of the β dependence of confinement and heat transport in ASDEX Upgrade (2007)

Vermare, L., Ryter, F., Angioni, C., Peeters, A.G., Stober, J., Bilato, R., ...

Theoretical understanding of core transport phenomena in ASDEX Upgrade (2007)

Angioni, C., Manini, A., Peeters, A.G., Ryter, F., Dux, R., Jacchia, A., ...

Recent progress on the development and analysis of the ITPA global H-mode confinement database (2007)

McDonald, D. C., Cordey, J.G., Thomsen, K., Snipes, J.A., Greenwald, M., ...

Chapter 2: Plasma confinement and transport (2007)

Doyle, E. J., Houlberg, W. A., Kamada, Y., Mukhovatov, V., Osborne, T. H., Polevoi, A., ...

Plasma wall interaction and its implication in an all tungsten divertor tokamak. Invited Paper (2007)

Neu, R., Balden, M., Bobkov, V., Dux, R., Gruber, O., Herrmann, A., ...

The New Multifrequency Electron Cyclotron Resonance Heating System for ASDEX Upgrade (2007)

Wagner, D., Leuterer, F., Manini, A., Monaco, F., Münich, M., Ryter, F., ...

Recent progress on the development and analysis of the ITPA global H-mode confinement database (2007)

McDonald, D. C., Cordey, J. G., Thomsen, K., Kardaun, Ojwf, Snipes, J. A., Greenwald, M., ...

This paper describes the updates to and analysis of the International Tokamak Physics Activity (ITPA) Global H-Mode Confinement Database version 3 (DB3) over the period 1994-2004. Global data, for...

Chapter 2: Plasma confinement and transport (2007)

Doyle, E. J., Houlberg, W. A., Kamada, Y., Mukhovatov, V., Osborne, T. H., Polevoi, A., ...

The understanding and predictive capability of transport physics and plasma confinement is reviewed from the perspective of achieving reactor-scale burning plasmas in the ITER tokamak, for both core...

Critical temperature gradient length signatures in heat wave propagation across internal transport barriers in the Joint European Torus (2007)

Casati, A., Mantica, P., Van Eester, D., Hawkes, N., Imbeaux, F., Joffrin, E., ...

New results on electron heat wave propagation using ion cyclotron resonance heating power modulation in the Joint European Torus (JET) [P. H. Rebut , Nucl. Fusion 25, 1011 (1985)] plasmas...

Plasma wall interaction and its implication in an all tungsten divertor tokamak (2007)

NEU, R, BALDEN, M, BOBKOV, V, DUX, R, GRUBER, O, HERRMANN, A, ...

The new multifrequency electron cyclotron resonance heating system for ASDEX upgrade. (2007)

Wagner, D., Leuterer, F., Manini, A., Monaco, F., Münich, M., Ryter, F., ...

Fusion Science and Technology, 52(2007) S.313-20

Commissioning of the new multi-frequency ECRH system for ASDEX Upgrade (2006)

Wagner, D., Leuterer, F., Manini, A., Monaco, F., Münich, M., Ryter, F., ...

The tortuous route of confinement prediction near Operational Boundary Improvement of analysis based on ITERH.DB4/L.DB3 database (2006)

Kardaun, O., Becker, G., Kus, A., Lang, P., McCarthy, P., Ryter, F., ...

Observations on core turbulence transitions in ASDEX Upgrade using Doppler reflectometry (2006)

Conway, G.D., Angioni, C., Dux, R., Ryter, F., Peeters, A.G., Schirmer, J., ...

H-mode physics of near double null plasmas in MAST and its applications to other tokamaks (2006)

Meyer, H., Carolan, P. G., Conway, G. D., Cunningham, G., Horton, L. D., Kirk, A., ...

The role of aspect ratio and beta in H-mode confinement scalings (2006)

Kaye, S., Valovic, M., Chudnovskiy, A., Cordey, J.G., McDonald, D., Meakins, A., ...

Investigation of electron heat pinch in ASDEX-Upgrade (2006)

Mantica, P., Ryter, F., Capuano, C., Fahrbach, H.U., Leuterer, F., Suttrop, W., ...

Etude Experimentale du Transport Electronique de la Chaleur dans les Tokamaks (2006)

Ryter, F.

Analysis of ECRH switch on/off events in ASDEX Upgrade (2006)

Kirov, K.K., Andreev, V.F., Leuterer, F., Pereverzev, G.V., Ryter, F., Sushkov, A., ...

Etude Experimentale du Transport Electronique de la Chaleur dans les Tokamaks. Experimental Study of Electron Heat Transport in Tokamaks (2006)

Ryter, F.

Studies of the beta dependence of transport in ASDEX Upgrade (2006)

Vermare, L., Ryter, F., Stober, J., Angioni, C., Bilato, R., Horton, L., ...

Impact of fast vertical and radial plasma movement on type-I ELMs in ASDEX Upgrade (2006)

Lang, P.T., Gruber, O., Mertens, V., Neu, R., Ryter, F., Schneider, W., ...

New frequency step tunable ECRH system for ASDEX Upgrade (2006)

Wagner, D., Leuterer, F., Manini, A., Monaco, F., Münich, M., Ryter, F., ...

Electron heat transport studies (2006)

Ryter, F., Camenen, Y., DeBoo, J. C., Imbeaux, F., Mantica, P., Regnoli, G., ...

Electron transport in fusion plasmas is intensively studied in coordinated experiments and great progress in physics understanding has been achieved during the past years. A threshold in normalized...

Impact of fast vertical and radial plasma movement on type-1 ELMs in ASDEX upgrade (2006)

Lang, P. T., Gruber, O., Mertens, V., Neu, R., Ryter, F., Schneider, W., ...

For the ITER project it is clear that steps have to be taken in order to avoid or mitigate type-I ELMs when operating in the standard H-mode scenario. Otherwise, divertor power loads induced by...

The role of aspect ratio and beta in H-mode confinement scalings (2006)

Kaye, S. M., Valovic, M., Chudnovskiy, A., Cordey, J. G., McDonald, D., Meakins, A., ...

The addition of high power, low aspect ratio data from the NSTX and MAST experiments has motivated a new investigation of the effect of aspect ratio on confinement scaling. Various statistical...

First tests of the new multi-frequency ECRH system at ASDEX upgrade. (2006)

Leuterer, F., Wagner, D., Manini, A., Monaco, F., Münich, M., Ryter, F., ...

33rd IEEE Internat.Conf.on Plasma Science (ICOPS 2006), Traverse City, Mich., June 4-8, 2006

Commissioning of the new multi-frequency ECRH system for ASDEX upgrade. (2006)

Wagner, D., Leuterer, F., Manini, A., Monaco, F., Münich, M., Ryter, F., ...

Shen, S.C. [Hrsg.]

First tests with the new ECRH system for ASDEX upgrade. (2006)

Wagner, D., Grünwald, G., Leuterer, F., Manini, A., Monaco, F., Münich, M., ...

7th Biennial ECH Transmission Line Workshop, Virginia Beach, Va., September 14-16, 2005

New frequency step tunable ECRH system for ASDEX upgrade. (2006)

Wagner, D., Leuterer, F., Manini, A., Monaco, F., Munich, M., Ryter, F., ...

International Journal of Infrared and Millimeter Waves, 27(2006) S.173-82

Status of the new ECRH system for ASDEX Upgrade (2005)

Leuterer, F., Gruenwald, G., Monaco, F., Muenich, M., Schuetz, H., Ryter, F., ...

Linear gyrokinetic stability calculations of electron heat dominated plasmas in ASDEX Upgrade (2005)

Peeters, A. G., Angioni, C., Apostoliceanu, M., Jenko, F., Ryter, F., ASDEX Upgrade Team

Sawtooth control experiments on ASDEX Upgrade (2005)

Mück, A., Goodman, T. P., Maraschek, M., Pereverzev, G., Ryter, F., Zohm, H., ...

Relationship between density peaking, particle thermodiffusion, Ohmic confinement, and microinstabilities in ASDEX Upgrade L-mode plasmas (2005)

Angioni, C., Peeters, A. G., Ryter, F., Jenko, F., Conway, G. D., Dannert, T., ...

Overview of ASDEX Upgrade results-development of integrated operating scenarios for ITER (2005)

Günter, S., Angioni, C., Apostoliceanu, M., Atanasiu, C., Balden, M., Becker, G., ...

This article based on the 2004 Fusion Energy Conference contribution (Vilamoura, Portugal, 1-6 November 2004)

EU–US workshop on transport in fusion plasmas. Conference Report (2005)

Connor, J.W., Garbet, X., Rogister, A.L., Romanelli, M., Ryter, F.

Nonlinear pertubative electron heat transport study in ASDEX Upgrade tokamak (2005)

Jacchia, A., De Luca, F., Ryter, F., Bruschi, A., Leuterer, F., Neu, R., ...

Experimental Study of Trapped-Electron-Mode Properties in Tokamaks: Threshold and Stabilization by Collisions (2005)

Ryter, F., Angioni, C., Peeters, A. G., Leuterer, F., Suttrop, W., ...

Search for a critical electron temperature gradient in DIII-D L-mode discharges (2005)

DeBoo, J. C., Cirant, S., Luce, T. C., Manini, A., Petty, C. C., Ryter, F., ...

Profile stiffness and global confinement. Addendum (2005)

Garbet, X., Mantica, P., Ryter, F., Cordey, G., Imbeaux, F., Sozzi, C., ...

ECRH deposition profile in ASDEX Upgrade (2005)

Leuterer, F., Kirov, F., Pereverzev, G., Poli, E., Ryter, F., Wagner, D.

Status of the new ECRH system for ASDEX Upgrade (2005)

Wagner, D., Grünwald, G., Leuterer, F., Monaco, F., Münich, M., Schütz, H., ...

The scaling of confinement in ITER with β and collisionality (2005)

Cordey, J. G., Snipes, J. A., Greenwald, M., Sugiyama, L., Ryter, F., ...

Progress in the Understanding and the Performance of Electron Cyclotron Heating and Plasma Shaping on TCV (2005)

Alberti, S., Andrebe, Y., Appert, K., Arnoux, G., Behn, R., ...

Understanding of the density profile shape, electron heat transport and internal barriers observed in ASDEX Upgrade (2005)

Peeters, A.G., Angioni, C., Apostoliceanu, M., Pereverzev, G.V., Quigley, E., Ryter, F., ...

Understanding of the density profile shape, electron heat transport and internal barriers observed in ASDEX Upgrade (2005)

Peeters, A.G., Angioni, C., Apostoliceanu, M., Pereverzev, G.V., Quigley, E., Ryter, F., ...

Electron Heat Transport Studies Using Transient Phenomena in ASDEX Upgrade (2005)

Jacchia, A., Angioni, C., Cirant, S., De Luca, F., Manini, A., Mantica, P., ...

Progress in Understanding Heat Transport at JET (2005)

Mantica, P., Garbet, X., Angioni, C., Asp, E., De Baar, M., Baranov, Y., ...

Search for a critical electron temperature gradient in DIII D L-mode discharges (2005)

DeBoo, J. C., Cirant, S., Luce, T. C., Manini, A., Petty, C. C., Ryter, F., ...

Effect of Plasma Shape on Electron Heat Transport in the Presence of Extreme Temperature Gradient Variations in TCV (2005)

Pochelon, A., Camenen, Y., Behn, R., Bortolon, A., Bottino, A., Coda, S., ...

Scaling of the energy confinement time with ß and collisionality approaching ITER conditions (2005)

Cordey, J.G., Thomson, K., Chudnovskiy, A., Takizuka, T., Snipes, J.A., ...

Electron Heat transport in shaped TCV L-mode plasmas (2005)

Camenen, Y., Pochelon, A., Bottino, A., Coda, S., Ryter, F., Sauter, O., ...

Sawtooth control experiments on ASDEX Upgrade (2005)

Muck, I., Goodman, T. P., Maraschek, M., Pereverzev, G. P., Ryter, F., Zohm, H.

In a fusion device, the so-called sawtooth instability can lead to the triggering of confinement limiting neoclassical tearing modes. On the other hand, the existence of sawteeth is desirable for the...

Scaling of the energy confinement time with beta and collisionality approaching ITER conditions (2005)

Cordey, J. G., Thomsen, K., Chudnovskiy, A., Kardaun, Ojwf, Takizuka, T., Snipes, J. A., ...

The condition of the latest version of the ELMy H-mode database has been re-examined. It is shown that there is bias in the ordinary least squares regression for some of the variables. To address...

Electron heat transport in shaped TCV L-mode plasmas (2005)

Camenen, Y., Pochelon, A., Bottino, A., Coda, S., Ryter, F., Sauter, O., ...

Electron heat transport experiments are performed in L-mode discharges at various plasma triangularities, using radially localized electron cyclotron heating to vary independently both the electron...

Overview of ASDEX Upgrade results - development of integrated operating scenarios for ITER (2005)

GUNTER, S, ANGIONI, C, APOSTOLICEANU, M, ATANASIU, C, BALDEN, M, BECKER, G, ...

Status of the new ECRH system for ASDEX upgrade. (2005)

Wagner, D., Grünwald, G., Leuterer, F., Monaco, F., Münich, M., Schütz, H., ...

Litvak, A. [Hrsg.]

The new ASDEX upgrade ECRH system (2005)

Wagner, D., Grünwald, G., Leuterer, F., Manini, A., Monaco, F., Münich, M., ...

17th Joint Russian-German STC Workshop on ECRH and Gyrotrons, Greifswald, May 30 - June 4, 2005

Current status of the new ECRH system for ASDEX upgrade. (2005)

Wagner, D., Grünwald, G., Leuterer, F., Manini, A., Monaco, F., Münich, M., ...

IRMMW-THz 2005 : The Joint 30th Internat.Conf.on Infrared and Millimeter Waves and 13th Internat.Conf.on Terahertz Electronics, Williamsburg, Va., September 19-23, 2005

First tests with the new ECRH system for ASDEX upgrade. (2005)

Wagner, D., Grünwald, G., Leuterer, F., Manini, A., Monaco, F., Münich, M., ...

7th Biennial ECH Transmission Line Workshop, Virginia Beach, Va., September 14-16, 2005

Status of the new ECRH system for ASDEX upgrade. (2005)

Leuterer, F., Grünwald, G., Monaco, F., Münich, M., Schütz, H., Ryter, F., ...

Fusion Engineering and Design, 74(2005) S.199-203

Density response to central electron heating: theoretical investigations and experimental observations in ASDEX Upgrade (2004)

Angioni, C., Peeters, A. G., Garbet, X., Manini, A., Ryter, F., ASDEX Upgrade Team

Profile stiffness and global confinement (2004)

Garbet, X., Mantica, P., Ryter, F., Cordey, G., Imbeaux, F., Sozzi, C., ...

ECRH deposition profile in ASDEX Upgrade (2004)

Leuterer, F., Kirov, K., Pereverzev, G., Poli, E., Ryter, F., Wagner, D.

Status of the New ECRH System for ASDEX Upgrade (2004)

Wagner, D., Grünwald, G., Leuterer, F., Monaco, F., Münich, M., Schütz, H., ...

L-H transition at Low Densities in ASDEX Upgrade (2004)

Lebedev, S. V., Ryter, F., Golant, V. E., Suttrop, W., Zohm, H., ...

Experimental Evidence for Electron Heat Transport Threshold in ASDEX Upgrade H-modes (2004)

Manini, A., Ryter, F., Angioni, C., Apostoliceanu, M., Peeters, A. G., Stober, J., ...

Formation and Sustainment of Internal Transport Barriers in ASDEX Upgrade (2004)

Quigley, E. D., McCarthy, P. J., Peeters, A. G., Apostoliceanu, M., Hobirk, J., Igochine, V., ...

ELMy H-modes in JET helium-4 plasmas (2004)

McDonald, D. C., Cordey, J. G., Righi, E., Ryter, F., Saibene, G., Sartori, R., ...

Status of and prospects for advanced tokamak regimes from multi-machine comparisons using the 'International Tokamak Physics Activity' database (2004)

Litaudon, X., Barbato, E., Bécoulet, A., Doyle, E. J., Fujita, T., Gohil, P., ...

Physics of transport in tokamaks (2004)

Garbet, X., Mantica, P., Angioni, C., Asp, E., Baranov, Y., Bourdelle, C., ...

Progress in the new ECRH system for ASDEX Upgrade (2004)

Leuterer, F., Grünwald, G., Monaco, F., Münich, M., Ryter, F., Schütz, H., ...

ELMy H-modes in JET helium-4 plasmas (2004)

McDonald, C., Cordey, J. G., Righi, E., Ryter, F., Saibene, G., Sartori, R., ...

ELMy H-modes in helium-4 plasmas provide valuable information on ELMy H-mode physics as well as a possible early low activation operational phase for next-step tokamaks, such as ITER. With this in...

Status of and prospects for advanced tokamak regimes from multi-machine comparisons using the 'International Tokamak Physics Activity' database (2004)

Litaudon, X., Barbato, E., Becoulet, A., Doyle, E. J., Fujita, T., Gohil, P., ...

Advanced tokamak regimes obtained in ASDEX Upgrade, DIII-D, FF-U, JET, JT-60U, TCV and Tore Supra experiments are assessed both in terms of their fusion performance and capability for ultimately...

Physics of transport in tokamaks (2004)

Garbet, X., Mantica, P., Angioni, C., Asp, E., Baranov, Y., Bourdelle, C., ...

This paper is an overview of recent results relating to turbulent particle and heat transport, and to the triggering of internal transport barriers (ITBs). The dependence of the turbulent particle...

Physics of Transport in Tokamaks (2004)

Garbet, X., Mantica, P., Angioni, C., Asp, E., Baranov, Y., Bourdelle, C., ...

Plasma Physics and Controlled Fusion Vol.46 Nr.12B, B557 - B574

Status of and prospects for Advanced Tokamak regimes from multi-machine comparisons using the 'International Tokamak Physics Activity' database (2004)

Litaudon, X., Barbato, E., Bécoulet, A., Doyle, E.J., Fujita, T., Gohil, P., ...

Plasma Physics and Controlled Fusion Vol.46 Nr.5A, A19 - A34

Progress in the new ECRH system for ASDEX upgrade. (2004)

Leuterer, F., Gruenwald, G., Monaco, F., Muenich, M., Schuetz, H., Ryter, F., ...

31st IEEE Internat.Conf.on Plasma Science (ICOPS 2004), Baltimore, Md., June 28 - July 1, 2004

Progress in the new ECRH system for ASDEX upgrade. (2004)

Leuterer, F., Grünwald, G., Monaco, F., Münich, M., Ryter, F., Schütz, H., ...

Conference Digest of the Joint 29th Internat.Conf.on Infrared and Millimeter Waves and 12th Internat.Conf.on Terahertz Electronics, Karlsruhe, September 27 - October 1, 2004

Status of the new ECRH system for ASDEX upgrade. (2004)

Leuterer, F., Gruenwald, G., Monaco, F., Muenich, M., Schuetz, H., Ryter, F., ...

23rd Symp.on Fusion Technology (SOFT), Venezia, I, September 20-24, 2004

Status of the new ECRH system for ASDEX upgrade. (2004)

Wagner, D., Grünwald, G., Leuterer, F., Monaco, F., Münich, M., Schütz, H., ...

13th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating, Nizhny Novgorod, Russia, May 17-20, 2004

Dependence of particle transport on heating profiles in ASDEX Upgrade (2003)

Stober, J., Dux, R., Gruber, O., Horton, L., Lang, P., Lorenzini, R., ...

The behaviour of the density profiles in ASDEX Upgrade can be described well with the assumption D α χ and a pinch of the order of the neoclassical Ware pinch. The latter is estimated from slowly...

Influence of the heating profile on impurity transport in ASDEX Upgrade (2003)

Dux, R., Neu, R., Peeters, A. G., Pereverzev, G., Mück, A., Ryter, F., ...

The transport of silicon has been investigated for various heating scenarios in ASDEX Upgrade H-mode discharges. Inside of r ≈ a/4, the diffusion coefficient D is either mainly neoclassical or...

Modulated ECRH power deposition in ASDEX Upgrade (2003)

Leuterer, F., Kirov, K., Pereverzev, G., Ryter, F., Wagner, D.

In order to gain insight into the physics of modulated and localized electron heating, like the generation of heat waves by electron cyclotron heating, we solve the one-dimensional linearized...

H-mode and pedestal physics in ASDEX Upgrade (2003)

Suttrop, W., Herrmann, A., Ryter, F., Stober, J. K.

Studies in ASDEX Upgrade of the phenomenology and scaling of the H-mode transition, of edge-localized modes (ELMs), and characterization of the H-mode edge transport barrier carried out in various...

Plans for a new ECRH system at ASDEX Upgrade (2003)

Leuterer, F., Kirov, K., Monaco, F., Münich, M., Schütz, H., Ryter, F., ...

A new ECRH system is being constructed for ASDEX Upgrade with a total power of 4 MW, generated by four gyrotrons, and a pulse duration of 10 s. Particular features are the use of gyrotrons which can...

Recent ECRH results in ASDEX Upgrade (2003)

Leuterer, F., Dux, R., Gantenbein, G., Goddman, T., Hobirk, J., Imbeaux, F., ...

We report about experiments in ASDEX Upgrade using our ECRH system with f = 140 GHz, P = 4 x 0.5 MW, and T = 2 sec. The following topics are covered: studies of modulated power deposition, studies of...

Theory-based modeling of particle transport in ASDEX Upgrade H-mode plasmas, density peaking, anomalous pinch and collisionality (2003)

Angioni, C., Peeters, A. G., Pereverzev, G. V., Ryter, F., Tardini, G., ASDEX Upgrade Team

The theoretical prediction of density profiles in tokamak plasmas plays a major role for the prediction of the plasma performance in a fusion reactor. The density peaking measured in plasmas in high...

Density peaking, anomalous pinch, and collisionality in Tokamak plasmas (2003)

Angioni, C., Peeters, A. G., Pereverzev, G. V., Ryter, F., Tardini, G., ASDEX Upgrade Team

The existence of an anomalous particle pinch in magnetized tokamak plasmas is still questioned. Contradictory observations have been collected so far in tokamaks. Clear experimental evidence that...

Dependence of particle transport on the heating profile in ASDEX Upgrade (2003)

Stober, J., Dux, R., Gruber, O., Horton, L., Maggi, C., Meo, F., ...

The slow peaking of the density profile for high densities with moderate NBI and its disappearance with central ICRH have been reported at the last IAEA conference in Sorrento. Meanwhile a modell...

Control of the sawtooth instability by electron cyclotron heating and current drive in the TCV and ASDEX Upgrade tokamaks (2003)

Goodman, T.P., Mück, A., Angioni, C., Henderson, M.A., Sauter, O., Ryter, F., ...

Recently, there has been increased interest in avoiding the destabilization of neoclassical tearing modes (NTMs) by controlling the sawtooth instability which frequently provides a large enough seed...

Suttrop, W. A., Horton, L. D., Hubbard, A. E., McDonald, D., Barnsley, R., Beurskens, M., ...

Similarity plasmas are studied in JET, ASDEX Upgrade and ALCATOR C-Mod to test the validity of dimensional constraints for core profiles and profiles at the plasma edge in H-modes with and without...

The ASDEX Upgrade divertor IIb—a closed divertor for strongly shaped plasmas (2003)

Neu, R., Fuchs, J. C., Kallenbach, A., Maggi, C., Rohde, V., Ryter, F., ...

A new divertor configuration (DIV-IIb) has been implemented in ASDEX Upgrade. In order to accommodate a large variety of plasma shapes with bottom triangularities (δbot) up to 0.48, the outer...

Overview of ASDEX Upgrade results (2003)

Zohm, H., Angioni, C., Arslanbekov, R., Atanasiu, C., Becker, G., Becker, W., ...

Recent results from the ASDEX Upgrade experimental campaigns 2001 and 2002 are presented. An improved understanding of energy and particle transport emerges in terms of a 'critical gradient' model...

Analysis of ECRH switch on/off events in ASDEX Upgrade (2003)

Andreev, V. F., Kirov, K., Sushkov, A. V., Dnestrovskij, Yu.N., Leuterer, F., Pereverzev, G. V., ...

Peturbative electron transport studies by means of laser blow off induced cold pulses in ASDEX Upgrade (2003)

Jacchia, A., DeLuca, F., Ryter, F., Bruschi, A., Leuterer, F., Neu, R., ...

Investigation of heat pinch effects in ASDEX Upgrade (2003)

Mantica, P., Capuano, C., Ryter, F., Thyagaraja, A., Weiland, J., Angioni, C., ...

Heat wave propagation experiments and modelling at JET: L-mode, H-mode and ITBS (2003)

Mantica, P., Garbet, X., Imbeaux, F., Mantsinen, M., VanEester, D., DeBaar, M., ...

Electron Heat Transport in Low Density H-mode Plasmas with dominant Ion Heating in ASDEX Upgrade (2003)

Manini, A., Ryter, F., Stober, J., Angioni, C., Kirov, K.K., Leuterer, F., ...

Assessment of Intrinsic Impurity Behaviour in ASDEX Upgrade (2003)

Neu, R., Pugno, R., Rohde, V., Dux, R., Eich, T., Fahrbach, H.U., ...

A new ECRH system for ASDEX (2003)

Wagner, D., Kirov, K., Leuterer, F., Monaco, F., Münich, M., Schütz, H., ...

Electron Heat Transport Studies Under Intense EC Heating in TCV (2003)

Camenen, Y., Pochelon, A., Ryter, F., Coda, S.

Overview of ASDEX upgrade results (2003)

Zohm, H., Angioni, C., Arslanbekov, R., Atanasiu, C., Becker, G., Becker, W., ...

Recent results from the ASDEX Upgrade experimental campaigns 2001 and 2002 are presented. An improved understanding of energy and particle transport emerges in terms of a 'critical gradient' model...

Overview of JET results (2003)

Pamela, J., Solano, E. R., Adams, J. M., Agarici, G., Agarici, M., Akhter, H., ...

Scientific and technical activities on JET focus on the issues likely to affect the ITER design and operation. Our understanding of the ITER reference mode of operation, the ELMy H-mode, has...

Signal processing techniques based on singular value decomposition applied to modulated ECH experiments (2003)

Manini, A., Moret, J. M., Ryter, F.

The analysis and interpretation of perturbative modulated electron cyclotron heating (MECH) discharges for power deposition localization using different diagnostics, such as electron cyclotron...

Dependence of particle transport on heating profiles in ASDEX upgrade (2003)

STOBER, J, DUX, R, GRUBER, O, HORTON, L, LANG, P, LORENZINI, R, ...

Plans for a new ECRH system at ASDEX upgrade. (2003)

Leuterer, F., Kirov, K., Monaco, F., Münich, M., Schütz, H., Ryter, F., ...

22nd Symp.on Fusion Technology (SOFT), Helsinki, SF, September 9-13, 2002

A new ECRH system for ASDEX upgrade. (2003)

Wagner, D., Leuterer, F., Kirov, K., Monaco, F., Münich, M., Schütz, H., ...

6th Internat.Workshop on Electron Cyclotron Resonance Heating Transmission Systems, San Diego, September 19-20, 2002

A new ECRH system for ASDEX upgrade. (2003)

Leuterer, F., Kirov, K., Monaco, F., Münich, M., Schütz, H., Ryter, F., ...

28th Internat.Conf.on Infrared and Millimeter Waves, Otsu J, September 29 - October 3, 2003

The new ECRH System for ASDEX upgrade. (2003)

Leuterer, F., Kirov, K., Monaco, F., Münich, M., Schütz, H., Ryter, F., ...

Zohm, H. [Hrsg.]

A new ECRH system for ASDEX upgrade. (2003)

Wagner, D., Kirov, K., Leuterer, F., Monaco, F., Münich, M., Schütz, H., ...

Hiromoto, N. [Hrsg.]

ECRH power deposition studies in ASDEX Upgrade (2002)

Kirov, K. K., Leuterer, F., Pereverzev, G. V., Ryter, F., Suttrop, W.

In this paper the calculated ECRH power deposition profiles pECRH(rho) are compared with the experimentally derived ones in ASDEX Upgrade. ECRH power deposition is calculated by the beamtracing code...

Incomplete reconnection in sawtooth crashes in ASDEX Upgrade (2002)

Letsch, A., Zohm, H., Ryter, F., Suttrop, W., Gude, A., Porcelli, F., ...

The temporal evolution of the sawtooth crash in ASDEX Upgrade Ohmic and ECRH heated discharges is analysed using a heuristic reconnection model to simulate measured ECE signals. The method turns out...

Impurity behaviour in the ASDEX Upgrade divertor tokamak with large area tungsten walls (2002)

Neu, R., Dux, R., Geier, A., Kallenbach, A., Pugno, R., Rohde, V., ...

At the central column of ASDEX Upgrade, an area of 5.5 m(2) of graphite tiles was replaced by tungsten-coated tiles representing about two-thirds of the total area of the central column. No negative...

Properties of the new divertor IIb in ASDEX Upgrade (2002)

Neu, R., Fuchs, J. C., Haas, G., Herrmann, A., Kallenbach, A., Laux, M., ...

A new divertor configuration (DIV IIb) has been implemented in ASDEX Upgrade. In order to accommodate a large variety of plasma shapes with bottom triangularities (delta(bot)) up to 0.48, the outer...

Survey of H-mode transition and confinement from ASDEX Upgrade 'H-mode standard shot' (2002)

Ryter, F., Gude, A., Neu, R., Rohde, V., Stober, J., ...

Progress of the international H-mode power threshold database acivity (2002)

Ryter, F.

Steady state advanced scenarios at ASDEX Upgrade (2002)

Sips, A.C.C., Arslanbekov, R., Atanasiu, C., Becker, W., Becker, G., Behler, K., ...

Recent experiments at ASDEX Upgrade have achieved advanced scenarios with high beta(N) (> 3) and confinement enhancement over ITER98(y, 2) scaling, H-H98y2 = 1.1-1.5, in steady state. These...

An international database for the study of the formation of ITBs in tokamaks (2002)

Sips, A. C. C., Peeters, A. G., Ryter, F., Wolf, R., Greenwald, M., Gohil, P., ...

Behaviour of density profiles of H-mode discharges in ASDEX Upgrade (2002)

Stober, J., Gruber, O., Kaufmann, M., Neu, R., Ryter, F., Sandmann, W., ...

ASDEX Upgrade results on crucial issues of H-mode operation are reported, i.e. density profile shape, onset conditions for neoclassical tearing modes (NTM) and smoothing of the power exhaust without...

ECRH power disposition studies in ASDEX Upgrade (2002)

Kirov, K., Leuterer, F., Pereverzev, G., Ryter, F., Suttrop, W., ASDEX Upgrade Team

Interpretation of plasma dynamic response to additional heating power (2002)

Mannini, A., Ryter, F., Sushkov, A., ASDEX Upgrade Team

Sawtooth tailoring experiments with ECRH in ASDEX Upgrade (2002)

Mück, A., Goodman, T. P., Koslowski, H. R., Ryter, F., Westerhof, E., Zohm, H., ...

Electron heat transport in ASDEX Upgrade: Experiment and modelling (2002)

Ryter, F., Tardini, G., Kirov, K., Leuterer, F., ...

Testing H-mode parameter similarity in JET and ASDEX Upgrade (2002)

Suttrop, W., Ryter, F., Cordey, J. G., Barnsley, R., Beurskens, M., Chareau, J. M., ...

Electron Cyclotron Resonance Heating in ASDEX Upgrade: Calculation and Experimental Authentication of the Power Deposition Profile (2002)

Kirov, K., Leuterer, F., Pereverzev, G., Ryter, F., Suttrop, W., ASDEX Upgrade Team

Control of the sawtooth instability by electron cyclotron heating and current drive in the TCV and ASDEX upgrade tokamaks (2002)

Goodman, T.P., Mueck, A., Angioni, C., Henderson, M.A., Sauter, O., Ryter, F., ...

Interpretation of Plasma Dynamic Response to Additional Heating Power in ASDEX Upgrade and TCV (2002)

Manini, A., Moret, J.M., Ryter, F., Sushkov, A.

Sawtooth Tailoring Experiments with ECRH in ASDEX Upgrade (2002)

Mueck, A., Goodman, T.P., Koslowski, H.R., Ryter, F., Westerhof, E., Zohm, H.

Progress of the international H-mode power threshold database activity (2002)

Ryter, F., Martin, Y.

The International Global H-mode Threshold Database has been revised and cleaned from inadequate data for some tokamaks. This significantly reduces the scatter for the corresponding datasets. The...

Incomplete reconnection in sawtooth crashes in ASDEX Upgrade (2002)

Letsch, A., Zohm, H., Ryter, F., Suttrop, W., Gude, A., Poreelli, F., ...

The temporal evolution of the sawtooth crash in ASDEX Upgrade Ohmic and ECRH heated discharges is analysed using a heuristic reconnection model to simulate measured ECE signals. The method turns out...

Dependence of particle transport on heating profiles in ASDEX Upgrade (2002)

STOBER, J, DUX, R, GRUBER, O, HORTON, L, LANG, P, LORENZINI, R, ...

The new ECRH system of ASDEX upgrade. (2002)

Leuterer, F., Kirov, K., Monaco, F., Münich, M., Schütz, H., Ryter, F., ...

14th Joint Russian-German Workshop on ECRH and Gyrotrons, Nizhny Novgorod/Moskva, June 25 - July 2, 2002

The ECRH system of ASDEX Upgrade (2001)

Leuterer, F., Beckmann, M., Borchegowski, A., Brinkschulte, H., Chirkov, A. V., Denisov, G. G., ...

Experience with the ECRH system of ASDEX-Upgrade (2001)

Leuterer, F., Beckmann, M., Brinkschulte, H., Monaco, F., Münich, M., Ryter, F., ...

Influence of Electron Heating on Confinement in JET and ASDEX Upgrade Internal Transport Barrier Plasmas (2001)

Wolf, R. C., Baranov, Y., Giroud, C., Mantsinen, M., Mazon, D., ...

Performance, Heating and Current Drive Scenarios of ASDEX Upgrade Advanced Tokamak Discharges (2001)

Wolf, R., Hobirk, J., Conway, G., Gruber, O., Gude, A., Günter, S., ...

Theory Based Modelling of EC Heated Discharges (2001)

Tardini, G., Peeters, A.G., Pereverzev, G., Ryter, F., ASDEX Upgrade Team

Overview of ASDEX Upgrade Results (2001)

Gruber, O., Arslanbekov, R., Atanasiu, C., Bard, A., Becker, G., Becker, W., ...

Energy Confinement in Steady State ELMy H-Modes in JET (2001)

Silva, C., Varandas, C., Campbell, D., Cordey, J.G., McDonald, D.C., Borrass, K., ...

First Characterization of the New Divertor IIb in ASDEX Upgrade (2001)

Neu, R., Fuchs, J.C., Haas, G., Herrmann, A., Laux, M., Neuhauser, J., ...

Microwave Reflectometry for Turbulence Studies on ASDEX Upgrade (2001)

Ribeiro, T., Serra, F., Conway, G., Manso, M., Ryter, F., Cupido, L., ...

Experimental Evidence for Gradient Length-Driven Electron Transport in Tokamaks (2001)

Ryter, F., Leuterer, F., Pereverzev, G., Fahrbach, H.U., Stober, J., Suttrop, W., ...

Confinement and Transport Studies of Conventional Scenarios in ASDEX Upgrade (2001)

Ryter, F., Stober, J., Stäbler, A., Tardini, G., Fahrbach, H.U., Gruber, O., ...

Experimental Characterization of the Heat Electron Transport in Tokamak Plasmas (2001)

Ryter, F., Imbeaux, F., Leuterer, F., Fahrbach, H.U., Suttrop, W., Asdex Upgrade Team

ECRH Experiments in ASDEX Upgrade (2001)

Leuterer, F., Gantenbein, G., Günter, S., Hobirk, J., Kirov, K., Ryter, F., ...

Experimental Studies of Electron Transport. Invited Paper (2001)

Ryter, F., Angioni, C., Beurskens, M., Cirant, S., Hoang, G.G., Hogeweij, G.M.D., ...

Next Step Tokamak Physics: Confinement-oriented Global Database Analysis (2001)

Kardaun, O.J., Kallenbach, A., McCarthy, P., Ryter, F., Stäbler, A., Stober, J., ...

Propagation of Cold Pulses and Heat Pulses in ASDEX Upgrade (2001)

Neu, R., Ryter, F., Dux, R., Jacchia, A., Kinsey, J.E., ...

Summary Report on the International Workshop of the Confinement Database and Modelling Expert Group in Collaboration with the Edge and Pedestal Physics Expert Group, April 2-6, 2001, Lausanne, Switzerland (2001)

Connor, J., Cordey, J., Polevoi, A., Ryter, F., Takizuka, T.

Experimental studies of electron transport (2001)

Ryter, F., Angioni, C., Beurskens, M., Cirant, S., Hoang, G. T., Hogeweij, G. M. D., ...

Electron transport in tokamaks has many different features which are briefly reviewed. The paper is focused on electron heat transport in conventional tokamak plasmas. An inter-machine comparison...

Experimental Evidence for Gradient Length-Driven Electron Transport in Tokamaks (2001)

ASDEX Upgrade Team, Leuterer, F., Pereverzev, G., Ryter, F., Stober, J., ...

Experimental Characterization of the Electron Heat Transport in Low-Density ASDEX Upgrade Plasmas (2001)

Imbeaux, F., Leuterer, F., Ryter, F., Suttrop, W.

Edge Behaviour and Divertor Load in ASDEX Upgrade Discharges with Internal Transport Barrier (2000)

Herrmann, A., Kallenbach, A., Laux, M., Neuhauser, J., Ryter, F., Stober, J, ...

Comparison of Theory Based Transport Models with ASDEX Upgrade Data (2000)

Tardini, G., Peeters, A.G., Pereverzev, G., Ryter, F., Stober, J., ASDEX Upgrade Team

Effects of Triangularity on Confinement, Density Limit and Profile Stiffness on H-Modes on ASDEX Upgrade (2000)

Stober, J., Gruber, O., Kallenbach, A., Mertens, V., Ryter, F., Stäbler, A., ...

ECRH Experiments in ASDEX Upgrade (2000)

Litvak, A. G., Ryter, F., Leuterer, F., Wolf, R., Gruber, O., Günter, S., ...