Scientific Commons: A. G. Peeters

An expression for the extrapolated fusion gain G = Pfusion /5 Pheat (Pfusion being the total fusion power and Pheat the total heating power) of ITER in terms of the confinement improvement factor (H)...

The toroidal momentum pinch velocity (2007)

Peeters, A. G., Angioni, C., Strintzi, D.

In this letter a pinch velocity of toroidal momentum is shown to exist for the first time. Using the gyro-kinetic equations in the frame moving with the equilibrium toroidal velocity, it is shown...

Nonlinear Low Noise Particle-in-cell Simulations of Electron Temperature Gradient Driven Turbulence (2007)

Bottino, A., Peeters, A.G., Hatzky, R., Jolliet, S., McMillan, B.F., Tran, T.M., ...

Thermal ions dilution and ITG suppression in ASDEX Upgrade ion ITBs (2007)

Tardini, G., Hobirk, J., Igochine, V., Maggi, C. V., Martin, P., McCune, D., ...

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., ...

Study of turbulence and radial electric field transitions in ASDEX Upgrade using Doppler reflectometry (2007)

Conway, G.D., Schirmer, J., Angioni, C., Fuchs, J.C., Dux, R., Jenko, F., ...

Microturbulence in magnetic fusion devices: new insights from gyrokinetic simulation and theory (2007)

Jenko, F., Angioni, C., Dannert, T., Merz, F., Peeters, A.G., Xanthopoulos, P.

Particle and impurity transport in the Axial Symmetric Divertor Experiment Upgrade and the Joint European Torus, experimental observations and theoretical understanding (2007)

Angioni, C., Carraro, L., Dannert, T., Dubuit, N., Dux, R., Fuchs, C., ...

Scaling of density peaking in H-mode plasmas based on a combined database of AUG and JET observations (2007)

Angioni, C., Weisen, H., Maslov, M., Zabolotsky, A., Fuchs, C., ...

Toroidal Momentum Pinch Velocity due to the Coriolis Drift Effect on Small Scale Instabiltities in a Toroidal Plasma (2007)

Peeters, A. G., Angioni, C., Strintzi, D.

The performance of improved H-modes at ASDEX Upgrade and projection to ITER (2007)

Sips, A. C. C., Tardini, G., Forest, C.B., Gruber, O., McCarthy, P. J., Gude, A., ...

On the extrapolation to ITER of discharges in present tokamaks (2007)

Peeters, A. G., Angioni, C., Sips, A. C. C., ASDEX Upgrade Team

Toroidal and poloidal momentum transport studies in tokamaks. Invited Paper (2007)

Tala, T., Crombe, K., De Vries, P. C., Ferreira, J., Mantica, P., Peeters, A. G., ...

Non-adiabatic passing electron response and outward impurity convection in gyrokinetic calculations of impurity transport in ASDEX Upgrade plasmas (2007)

Angioni, C., Dux, R., Fable, E., Peeters, A.G., ASDEX Upgrade Team

Extrapolation of ASDEX Upgrade H-mode discharges to ITER (2007)

Tardini, G., Horton, L. D., Kardaun, O., Maggi, C. F., Peeters, A. G., Pereverzev, G. V., ...

Nonlinear low noise particle-in-cell simulations of electron temperature gradient driven turbulence (2007)

Bottino, A., Peeters, A. G., Hatzky, R., Jolliet, S., McMillan, B. F., Tran, T. M., ...

In this Letter, it is shown that global, nonlinear, particle-in-cell (PIC) simulations of electron temperature driven turbulence recover the same level of transport as flux-tube codes when the level...

Particle and impurity transport in the Axial Symmetric Divertor Experiment Upgrade and the Joint European Torus, experimental observations and theoretical understanding - art. no. 055905 (2007)

Angioni, C., Carraro, L., Dannert, T., Dubuit, N., Dux, R., Fuchs, C., ...

Experimental observations on core particle and impurity transport from the Axial Symmetric Divertor Experiment Upgrade [O. Gruber, H.-S. Bosch, S. Gunter , Nucl Fusion 39, 1321 (1999)] and the Joint...

Particle and impurity transport in the Axial Symmetric Divertor Experiment Upgrade and the Joint European Torus, experimental observations and theoretical understanding (2007)

Angioni, C., Carraro, L., Dannert, T., Dubuit, N., Dux, R., Fuchs, C., ...

Experimental observations on core particle and impurity transport from the Axial Symmetric Divertor Experiment Upgrade [O. Gruber, H.-S. Bosch, S. Gunter , Nucl Fusion 39, 1321 (1999)] and the Joint...

Toroidal and poloidal momentum transport studies in tokamaks (2007)

Tala, Tuomas, Crombe, K., De Vries, P.C., Ferreira, J., Mantica, P., Peeters, A.G., ...

Plasma Physics and Controlled Fusion Vol.49 Nr.12, B291 - B302

Toroidal and poloidal momentum transport studies in tokamaks (2007)

Tala, T., Crombé, Kristel, De Vries, P. C., Ferreira, J., Mantica, P., Peeters, A. G., ...

The present status of understanding of toroidal and poloidal momentum transport in tokamaks is presented in this paper. Similar energy confinement and momentum confinement times, i.e....

Microturbulence in magnetic fusion devices: new insights from gyrokinetic simulation and theory (2006)

Jenko, F., Angioni, C., Dannert, T., Merz, F., Peeters, A.G., Xanthopoulos, P.

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., ...

Direction of Impurity Pinch and Auxiliary Heating in Tokamak Plasmas (2006)

Angioni, C., Peeters, A.G.

Role of Te/Ti and ∇ vtor in ion heat transport of ASDEX Upgrade H-mode plasmas (2006)

Manini, A., Angioni, C., Peeters, A.G., Ryter, F., Jacchia, A., Maggi, C.F., ...

Toroidal momentum transport. Invited paper (2006)

Peeters, A.G., Angioni, C., Bottino, A., Kallenbach, A., Kurzan, B., Maggi, C.F., ...

Global Nonlinear Gyrokinetic Simulations of ETG turbulence using particles (2006)

Bottino, A., Angelino, P., Hatzky, R., Jolliet, S., Peeters, A.G., Poli, E., ...

Transport modelling (2006)

Peeters, A.G., Angioni, C., Tardini, G.

Scaling of density peaking in ELMy H-mode plasmas based on a combined database of AUG and JET observations (2006)

Angioni, C., Weisen, H., Maslov, M., Zabolotsky, A., Fuchs, C., Garzotti, L., ...

ITER performance of scaled ASDEX Upgrade discharges (2006)

Tardini, G., Horton, L.D., Kardaun, O., Maggi, C.F., Peeters, A.G., Pereverzev, G.V., ...

Ion and electron dynamics in nonlinear PIC simulations. Invited paper (2006)

Jolliet, S., Bottino, A., Angelino, P., Tran, T.M., McMillan, B.F., Hatzky, R., ...

PIC simulations of microturbulence in the presence of a magnetic island (2006)

Poli, E., Bottino, A., Peeters, A.G., Sauter, O.

Global nonlinear gyrokinetic simulations of ETG turbulence using particles (2006)

Bottino, A., Angelino, P., Hatzky, R., Jolliet, S., Peeters, A.G., Poli, E., ...

Ion and Electron Dynamics in Nonlinear PIC simulations (2006)

Jolliet, S., Bottino, A., Angelino, P., Tran, T.M., McMillan, B.F., Hatzky, R., ...

Experimental studies of toroidal momentum transport in ASDEX Upgrade (2005)

Nishijima,D., Kallenbach,A., Günter,S., Kaufmann,M., Lackner,K., Maggi,C. F., ...

Role of Kinetic Effects on the Polarization Current around a Magnetic Island (2005)

Poli,E., Bergmann,A., Peeters,A. G.

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

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

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)

Gyrokinetic calculations of particle and impurity transport in ASDEX Upgrade and JET (2005)

Angioni,C., Dannert,T., Dux,R., Giroud,C., Jenko,F., Maggi,C.F., ...

Ion ITB dynamics in ASDEX Upgrade (2005)

Tardini,G., Hobirk,J., Ludescher,C., Maggi,C. F., Martin,P., McCune,D., ...

Theoretical predictions of the density profile in a tokamak reactor (2005)

Pereverzev,G. V., Angioni,C., Peeters,A. G., Zolotukhin,O. V.

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., ...

Kinetic calculation of the polarization current in the presence of a neoclassical tearing mode (2005)

Poli,E., Bergmann,A., Peeters,A. G., Appel,L. C., Pinches,S. D.

Linear gyrokinetic calculations of toroidal momentum transport in a tokamak due to the ion temperature gradient mode (2005)

Peeters,A.G., Angioni,C.

Collisionality dependence of the polarization current caused by a rotating magnetic island (2005)

Bergmann,A., Poli,E., Peeters,A.G.

Collisionality dependence of density peaking in quasi-linear gyrokinetic calculations (2005)

Angioni,C., Peeters,A. G., Jenko,F., Dannert,T.

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., ...

Impurity Transport and Control in ASDEX Upgrade (2005)

Dux,R., Neu,R., Maggi,C. F., Peeters,A. G., Pütterich,T., Pereverzev,G., ...

Overview of ASDEX Upgrade Results (2005)

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

Kinetic Calculations of the NTM Polarisation Current: Reduction for Small Island Widths and Sign Reversal Near the Diamagnetic Frequency (2005)

Poli,E., Bergmann,A., Peeters,A.G., Appel,L., Pinches,S. D.

Guiding centre simulation of the bootstrap current in a plasma with a current hole (2005)

Bergmann,A., Strumberger,E., Peeters,A.G.

Performance optimisation in ASDEX Upgrade with ECRH and ECCD (2005)

Leuterer,F., Angioni,C., Dux,R., Gantenbein,G., Guenter,S., Manini,A., ...

Experimental studies of toroidal momentum transport in ASDEX Upgrade (2005)

Nishijima, D., Kallenbach, A., Günter, S., Kaufmann, M., Lackner, K., Maggi, C. F., ...

Role of Kinetic Effects on the Polarization Current around a Magnetic Island (2005)

Poli, E., Bergmann, A., Peeters, A. G.

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

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)

Gyrokinetic calculations of particle and impurity transport in ASDEX Upgrade and JET (2005)

Angioni, C., Dannert, T., Dux, R., Giroud, C., Jenko, F., Maggi, C.F., ...

Ion ITB dynamics in ASDEX Upgrade (2005)

Tardini, G., Hobirk, J., Ludescher, C., Maggi, C. F., Martin, P., McCune, D., ...

Theoretical predictions of the density profile in a tokamak reactor (2005)

Pereverzev, G. V., Angioni, C., Peeters, A. G., Zolotukhin, O. V.

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., ...

Kinetic calculation of the polarization current in the presence of a neoclassical tearing mode (2005)

Poli, E., Bergmann, A., Peeters, A. G., Appel, L. C., Pinches, S. D.

Linear gyrokinetic calculations of toroidal momentum transport in a tokamak due to the ion temperature gradient mode (2005)

Peeters, A.G., Angioni, C., ASDEX Upgrade Team

Collisionality dependence of the polarization current caused by a rotating magnetic island (2005)

Bergmann, A., Poli, E., Peeters, A.G.

Collisionality dependence of density peaking in quasi-linear gyrokinetic calculations (2005)

Angioni, C., Peeters, A. G., Jenko, F., Dannert, T.

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., ...

Impurity Transport and Control in ASDEX Upgrade (2005)

Dux, R., Neu, R., Maggi, C. F., Peeters, A. G., Pütterich, T., Pereverzev, G., ...

Overview of ASDEX Upgrade Results (2005)

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

Kinetic Calculations of the NTM Polarisation Current: Reduction for Small Island Widths and Sign Reversal Near the Diamagnetic Frequency (2005)

Poli, E., Bergmann, A., Peeters, A.G., Appel, L., Pinches, S. D.

Guiding centre simulation of the bootstrap current in a plasma with a current hole (2005)

Bergmann, A., Strumberger, E., Peeters, A.G.

Performance optimisation in ASDEX Upgrade with ECRH and ECCD (2005)

Leuterer, F., Angioni, C., Dux, R., Gantenbein, G., Guenter, S., Manini, A., ...

Simulations of global electrostatic microinstabilities in ASDEX Upgrade discharges (2004)

Bottino,A., Peeters,A. G., Sauter,O., Vaclavik,J., Villard,L.

The effect of a uniform radial electric field on the toroidal ion temperature gradients mode (2004)

Peeters,A. G., Strinzi,D.

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.

Neoclassical Transport in the Plasma Edge at ASDEX Upgrade with B2 (2004)

Konz,C., Coster,D. P., Peeters,A. G.

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., ...

ITB Collapse and ELMs in ASDEX Upgrade (2004)

Tardini,G., Hobirk,J., Igochine,V. G., Maraschek,M., Peeters,A. G., Pereverzev,G. V., ...

Formation criteria and positioning of internal transport barriers in ASDEX Upgrade (2004)

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

Experimental study of electron heat transport in ion heated H-modes in ASDEX Upgrade (2004)

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

Full radius linear and nonlinear gyrokinetic simulations for tokamaks and stellarators: zonal flows, applied E x B flows, trapped electrons and finite beta (2004)

Villard,L., Allfrey,S. J., Bottino,A., Brunetti,M., Falchetto,G. L., Grandgirard,V., ...

Simulations of global electrostatic microinstabilities in ASDEX Upgrade discharges (2004)

Bottino, A., Peeters, A. G., Sauter, O., Vaclavik, J., Villard, L., ASDEX Upgrade Team

The effect of a uniform radial electric field on the toroidal ion temperature gradients mode (2004)

Peeters, A. G., Strinzi, D.

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

Neoclassical Transport in the Plasma Edge at ASDEX Upgrade with B2 (2004)

Konz, C., Coster, D. P., Peeters, A. G., ASDEX Upgrade Team

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., ...

ITB Collapse and ELMs in ASDEX Upgrade (2004)

Tardini, G., Hobirk, J., Igochine, V. G., Maraschek, M., Peeters, A. G., Pereverzev, G. V., ...

Formation criteria and positioning of internal transport barriers in ASDEX Upgrade (2004)

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

Experimental study of electron heat transport in ion heated H-modes in ASDEX Upgrade (2004)

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

Full radius linear and nonlinear gyrokinetic simulations for tokamaks and stellarators: zonal flows, applied E x B flows, trapped electrons and finite beta (2004)

Villard, L., Allfrey, S. J., Bottino, A., Brunetti, M., Falchetto, G. L., Grandgirard, V., ...

Full radius linear and nonlinear gyrokinetic simulations for tokamaks and stellarators: zonal flows, applied E x B flows, trapped electrons and finite beta (2004)

Villard, L., Allfrey, S. J., Bottino, A., Brunetti, M., Falchetto, G. L., Grandgirard, V., ...

The aim of this paper is to report on recent advances made in global gyrokinetic simulations of ion temperature gradient (ITG) modes and other microinstabilities. The nonlinear development and...

Simulations of global electrostatic microinstabilities in ASDEX Upgrade discharges (2004)

Bottino, A., Peeters, A. G., Sauter, O., Vaclavik, J., Villard, L.

Electrostatic microinstabilities in ion internal barrier (ITB) and H-mode discharges of the ASDEX Upgrade tokamak [O. Gruber, R. Arslanbekov, C. Atanasiu , Nucl. Fusion 41, 1369 (2001)] have been...

Accumulation of impurities in advanced scenarios (2003)

Dux,R., Giroud,C., Neu,R., Peeters,A. G., Stober,J., ...

Impurity behaviour in advanced scenarios at ASDEX Upgrade and JET has been investigated. For ASDEX Upgrade improved H-mode plasmas at δ=0.35, accumulation of tungsten and metallic impurities was...

Characterization of ion heat conduction in JET and ASDEX Upgrade plasmas with and without internal transport barriers (2003)

Wolf,R. C., Baranov,Y., Garbet,X., Hawkes,N., Peeters,A. G., Challis,C., ...

In ASDEX Upgrade and JET, the ion temperature profiles can be described by R/LTi which exhibits only little variations, both locally, when comparing different discharges, and radially over a wide...

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...

Advanced tokamak studies in ASDEX Upgrade (2003)

Sips,A., Hobirk,J., Peeters,A. G.

Advanced scenarios in tokamaks seek to maximize the confinement and stability of thermonuclear plasmas. Key to obtaining these conditions is operation at different current density profiles....

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...

Internal transport barrier triggering by rational magnetic flux surfaces in tokamaks (2003)

Joffrin,E., Challis,C. D., Conway,G. D., Garbet,X., Gude,A., Günter,S., ...

The formation of internal transport barriers (ITBs) has been experimentally associated with the presence of rational q surfaces in both JET and ASDEX Upgrade. The triggering mechanisms are related to...

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.

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.

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...

Monte Carlo δf simulation of the bootstrap current in the presence of a magnetic island (2003)

Poli,E., Peeters,A. G., Bergmann,A., Günter,S., Pinches,S. D.

In the theoretical description of the neoclassical tearing mode the bootstrap current is assumed to completely vanish inside the magnetic island if finite perpendicular transport can be neglected. In...

Monte Carlo δf simulations of neoclassical phenomena in Tokamak plasmas (2003)

Bergmann,A., Poli,E., Peeters,A. G.

Some important neoclassical phenomena are studied with drift-kinetic simulations of the ions: the current which drives neoclassical tearing modes (bootstrap and polarization current) and the...

Electron heat transport in ASDEX Upgrade: experiment and modelling (2003)

Ryter,F., Tardini,G., De Luca,F., Imbeaux,F., Jacchia,A., ...

The electron heat transport is investigated in ASDEX Upgrade using electron cyclotron heating (ECH) combining steady-state and power modulation schemes. Experiments in which the electron heat flux...

Internal transport barriers in ASDEX Upgrade (2003)

Peeters,A. G., Sips,A. C. C., Quigley,E., Gruber,O., Igochine,V., McCarthy,P., ...

This paper gives an overview of all the experiments on transport barriers performed on ASDEX Upgrade. Strong (R/LTe = 25 Te(0) = 20 keV) transport barriers in the electron heat channel are generated...

Theoretical Understanding of Density Peaking: Dependence on Collisionality and on Heating Profiles (2003)

Angioni,C., Peeters,A. G., Garbet,X., Ryter,F., Apostoliceanu,M., Manini,A., ...

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...

Monte Carlo δf calculation of the ion polarization current at a rotating island and of the bootstrap current at a large pressure gradient (2003)

Bergmann,A., Poli,E., Peeters,A. G., Pinches,S. D., Strumberger,E.

Off-axis neutral beam current drive experiments on ASDEX Upgrade and JT-60U (2003)

Hobirk,J., Oikawa,T., Fujita,T., Fukuda,T., Günter,S., Gruber,O., ...

Diagnosing Electron Heat Transport in ASDEX Upgrade with ECH Power Modulation (2003)

Ryter,F., Suttrop,W., Kirov,K. K., Leuterer,F., Peeters,A. G., ...

Diagnosing electron heat transport is achieved in ASDEX Upgrade using Electron Cyclotron Heating in experiments combining steady-state and power modulation. The flexible ECH system and the high...

Dependence of Impurity Transport on the Heating Profile in ASDEX Upgrade (2003)

Dux,R., Kirov,K. K., Neu,R., Pereverzev,G., Peeters,A. G., Stober,J., ...

Accumulation of impurities in advanced scenarios (2003)

Dux, R., Giroud, C., Neu, R., Peeters, A. G., Stober, J., ...

Impurity behaviour in advanced scenarios at ASDEX Upgrade and JET has been investigated. For ASDEX Upgrade improved H-mode plasmas at δ=0.35, accumulation of tungsten and metallic impurities was...

Characterization of ion heat conduction in JET and ASDEX Upgrade plasmas with and without internal transport barriers (2003)

Wolf, R. C., Baranov, Y., Garbet, X., Hawkes, N., Peeters, A. G., Challis, C., ...

In ASDEX Upgrade and JET, the ion temperature profiles can be described by R/LTi which exhibits only little variations, both locally, when comparing different discharges, and radially over a wide...

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...

Advanced tokamak studies in ASDEX Upgrade (2003)

Sips, A., Hobirk, J., Peeters, A. G.

Advanced scenarios in tokamaks seek to maximize the confinement and stability of thermonuclear plasmas. Key to obtaining these conditions is operation at different current density profiles....

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...

Internal transport barrier triggering by rational magnetic flux surfaces in tokamaks (2003)

Joffrin, E., Challis, C. D., Conway, G. D., Garbet, X., Gude, A., Günter, S., ...

The formation of internal transport barriers (ITBs) has been experimentally associated with the presence of rational q surfaces in both JET and ASDEX Upgrade. The triggering mechanisms are related to...

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...

Monte Carlo δf simulation of the bootstrap current in the presence of a magnetic island (2003)

Poli, E., Peeters, A. G., Bergmann, A., Günter, S., Pinches, S. D.

In the theoretical description of the neoclassical tearing mode the bootstrap current is assumed to completely vanish inside the magnetic island if finite perpendicular transport can be neglected. In...

Monte Carlo δf simulations of neoclassical phenomena in Tokamak plasmas (2003)

Bergmann, A., Poli, E., Peeters, A. G.

Some important neoclassical phenomena are studied with drift-kinetic simulations of the ions: the current which drives neoclassical tearing modes (bootstrap and polarization current) and the...

Electron heat transport in ASDEX Upgrade: experiment and modelling (2003)

Ryter, F., Tardini, G., De Luca, F., Imbeaux, F., Jacchia, A., ...

The electron heat transport is investigated in ASDEX Upgrade using electron cyclotron heating (ECH) combining steady-state and power modulation schemes. Experiments in which the electron heat flux...

Internal transport barriers in ASDEX Upgrade (2003)

Peeters, A. G., Sips, A. C. C., Quigley, E., Gruber, O., Igochine, V., McCarthy, P., ...

This paper gives an overview of all the experiments on transport barriers performed on ASDEX Upgrade. Strong (R/LTe = 25 Te(0) = 20 keV) transport barriers in the electron heat channel are generated...

Theoretical Understanding of Density Peaking: Dependence on Collisionality and on Heating Profiles (2003)

Angioni, C., Peeters, A.G., Garbet, X., Ryter, F., Apostoliceanu, M., Manini, A., ...

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...

Monte Carlo δf calculation of the ion polarization current at a rotating island and of the bootstrap current at a large pressure gradient (2003)

Bergmann, A., Poli, E., Peeters, A.G., Pinches, S.D., Strumberger, E.

Off-axis neutral beam current drive experiments on ASDEX Upgrade and JT-60U (2003)

Hobirk, J., Oikawa, T., Fujita, T., Fukuda, T., Günter, S., Gruber, O., ...

Diagnosing Electron Heat Transport in ASDEX Upgrade with ECH Power Modulation (2003)

Ryter, F., Suttrop, W., Kirov, K. K., Leuterer, F., Peeters, A. G., ...

Diagnosing electron heat transport is achieved in ASDEX Upgrade using Electron Cyclotron Heating in experiments combining steady-state and power modulation. The flexible ECH system and the high...

Dependence of Impurity Transport on the Heating Profile in ASDEX Upgrade (2003)

Dux, R., Kirov, K.K., Neu, R., Pereverzev, G., Peeters, A.G., Stober, J., ...

Kinetic effects and transport in Tokamak plasma (2003)

Peeters, A. G.

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...

Full radius linear and nonlinear gyrokinetic simulations for tokamaks and stellarators: Zonal flows, applied E x B flows, trapped electrons and finite beta (2003)

Allfrey, S.J., Bottino, A., Brunetti, M., Falchetto, G.L., Grandgirard, V., ...

Confinement physics of the advanced scenario with ELMy H-mode edge in ASDEX Upgrade (2002)

Peeters,A. G., Gruber,O., Günter,S., Kaufmann,M., Meister,H., Pereverzev,G. V., ...

The confinement physics of the improved H-mode is analysed in detail. It is shown that this scenario can be largely unified with that of the standard H-mode. Transport barriers exist in the early...

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...

Theory-based modelling of ASDEX Upgrade discharges with ECH modulation (2002)

Tardini,G., Peeters,A. G., Pereverzev,G. V., Ryter,F.

Electron Cyclotron Heating (ECH) discharges of the tokamak ASDEX Upgrade, exhibiting T-e profile resilience, are used to test the Weiland model in the case of dominant electron heating. Electron heat...

Comparison of theory based transport models with ASDEX Upgrade data (2002)

Tardini,G., Peeters,A. G., Pereverzev,G. V., Ryter,F., Stober,J.

Heat transport in steady state ASDEX Upgrade discharges is compared with the predictions of four theory based models: the IFS/PPPL, Weiland and GLF23 models, based on ion temperature gradient (ITG)...

Reduction of the ion drive and ρ*θ scaling of the neoclassical tearing mode (2002)

Poli,E., Peeters,A. G., Bergmann,A., Günter,S., Pinches,S. D.

In the theoretical description of the neoclassical tearing mode it is usually assumed that the ion banana width w(b) is much smaller than the island width W. This assumption is questionable at least...

Neoclassical radial electric field and ion heat flux in the presence of the transport barrier (2002)

Kiviniemi,T. P., Heikkinen,J. A., Peeters,A. G.

The ambipolar radial electric field and ion heat flux in the presence of this field are studied using Monte Carlo guiding centre orbit following code ASCOT. These are studied as a function of...

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., ...

E x B flow effects on ITG modes in reverse shear ASDEX Upgrade discharge (2002)

Bottino,A., Allfrey,S. J., Peeters,A. G., Sauter,O., Villard,L.

Drift kinetic simulations of the current driving the neoclassical tearing mode (2002)

Poli,E., Peeters,A. G., Bergmann,A., Günter,S., Pinches,S. D.

Formation criterion and position of internal transport barriers in ASDEX Upgrade (2002)

Quigley,E., McCarthy,P.J., Peeters,A. G., Hobirk,J.

The role of neutral beam injection geometry in advanced discharges scenarios on ASDEX Upgrade (2002)

Stäbler,A., Franzen,P., Hobirk,J., Peeters,A. G., Sips,A. C. C.

Ion Heat Transport in JET and ASDEX Upgrade Tokamak plasmas (2002)

Wolf,R., Baranov,Yu., De Baar,M., Challis,C. D., Dorland,W., Garbet,X., ...

Ion Heat Transport in JET and ASDEX Upgrade Tokamak plasmas (2002)

Wolf,R., Baranov,Yu., De Baar,M., Challis,C. D., Dorland,W., Garbet,X., ...

Neoclassical radial electric field and ion heat flux in the presence of the transport barrier (2002)

Kiviniemi, T. P., Heikkinen, J. A., Peeters, A. G.

The ambipolar radial electric field and ion heat flux in the presence of this field are studied using Monte Carlo guiding centre orbit following code ASCOT. These are studied as a function of...

Confinement physics of the advanced scenario with ELMy H-mode edge in ASDEX Upgrade (2002)

Peeters, A. G., Gruber, O., Günter, S., Kaufmann, M., Meister, H., Pereverzev, G. V., ...

The confinement physics of the improved H-mode is analysed in detail. It is shown that this scenario can be largely unified with that of the standard H-mode. Transport barriers exist in the early...

Reduction of the ion drive and ρ*θ scaling of the neoclassical tearing mode (2002)

Poli, E., Peeters, A. G., Bergmann, A., Günter, S., Pinches, S. D.

In the theoretical description of the neoclassical tearing mode it is usually assumed that the ion banana width w(b) is much smaller than the island width W. This assumption is questionable at least...

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., ...

Theory-based modelling of ASDEX Upgrade discharges with ECH modulation (2002)

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

Electron Cyclotron Heating (ECH) discharges of the tokamak ASDEX Upgrade, exhibiting T-e profile resilience, are used to test the Weiland model in the case of dominant electron heating. Electron heat...

Comparison of theory based transport models with ASDEX Upgrade data (2002)

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

Heat transport in steady state ASDEX Upgrade discharges is compared with the predictions of four theory based models: the IFS/PPPL, Weiland and GLF23 models, based on ion temperature gradient (ITG)...

E x B flow effects on ITG modes in reverse shear ASDEX Upgrade discharge (2002)

Bottino, A., Allfrey, S. J., Peeters, A. G., Sauter, O., Villard, L., ASDEX Upgrade Team

Drift kinetic simulations of the current driving the neoclassical tearing mode (2002)

Poli, E., Peeters, A. G., Bergmann, A., Günter, S., Pinches, S. D.

Formation criterion and position of internal transport barriers in ASDEX Upgrade (2002)

Quigley, E., McCarthy, P.J., Peeters, A. G., Hobirk, J., ASDEX Upgrade Team

The role of neutral beam injection geometry in advanced discharges scenarios on ASDEX Upgrade (2002)

Stäbler, A., Franzen, P., Hobirk, J., Peeters, A.G., Sips, A.C.C., ASDEX Upgrade Team

Ion Heat Transport in JET and ASDEX Upgrade Tokamak plasmas (2002)

Wolf, R., Baranov, Yu., De Baar, M., Challis, C. D., Dorland, W., Garbet, X., ...

Ion Heat Transport in JET and ASDEX Upgrade Tokamak plasmas (2002)

Wolf, R., Baranov, Yu., De Baar, M., Challis, C.D., Dorland, W., Garbet, X., ...