A. C. C. Sips

Publication List Details

Period

1994 - 2009

Number

293

Co-Authors

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

Peeters, A. G., Angioni, C., Sips, A. C. C.

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)...

Chapter 8: Plasma operation and control (2007)

Gribov, Y., Humphreys, D., Kajiwara, K., Lazarus, E. A., Lister, J. B., Ozeki, T., ...

The ITER plasma control system has the same functional scope as the control systems in present tokamaks. These are plasma operation scenario sequencing, plasma basic control (magnetic and kinetic),...

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...

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...

Integrated exhaust scenarios with actively controlled ELMs (2005)

Lang, P. T., Kallenbach, A., Bucalossi, J., Conway, G. D., Degeling, A., Dux, R., ...

An integrated radiative high performance scenario has been established at ASDEX Upgrade based on simultaneous feedback control of the average divertor neutral particle and power flux in combination...

Local 3D perturbation experiments for probing the ELM stability (2005)

Lang, P. T., Hobirk, J., Horton, L. D., Kallenbach, A., Maraschek, M., Mertens, V., ...

Empirical estimates indicate that the transient divertor power load induced by type-I ELMs in the standard H-mode ITER scenario might result in intolerably short target life times. Significant...

Frequency control of type-I ELMs by magnetic triggering in ASDEX Upgrade (2004)

Lang, P. T., Degeling, A. W., Lister, J. B., Martin, Y. R., McCarthy, P. J., Sips, A. C. C., ...

Magnetic triggering of edge localized modes (ELMs) was reported first from TCV in ohmic plasmas showing type-III ELMs. This method, showing successful locking of the ELM frequency to an imposed...

ITER-relevant H-mode physics at ASDEX upgrade (2004)

Horton, L. D., Conway, G. D., Degeling, A. W., Eich, T., Kallenbach, A., Lang, P. T., ...

A variety of techniques are being tested on ASDEX Upgrade for avoiding or reducing the divertor energy load caused by ELMs. Quiescent H-mode operation has been improved by operation with recently...

Hybrid advanced scenarios: perspectives for ITER and new experiments with dominant RF heating (2004)

Gormezano, C., Becoulet, A., Buratti, P., Carraro, L., Crisanti, F., Esposito, B., ...

A 'hybrid' scenario for ITER is defined through its objectives: a large fusion yield for a long time duration. In many tokamaks, discharges characterized by a stationary current density profile,...

ELM-free stationary H-mode plasmas in the ASDEX Upgrade tokamak (2003)

Suttrop,W., Maraschek,M., Conway,G. D., Haas,G., Horton,L. D., ...

ELM-free H-mode plasmas with stationary plasma density and radiation level are obtained in the ASDEX Upgrade tokamak with large clearance between the last closed flux surface and the wall, and...

Neoclassical tearing modes on ASDEX Upgrade: improved scaling laws, high confinement at high βN and new stabilization experiments (2003)

Günter,S., Gantenbein,G., Gude,A., Igochine,V., Maraschek,M., Mück,A., ...

In this paper, recent results on the physics of neoclassical tearing modes (NTMs) achieved on ASDEX Upgrade are reported. A scaling law for NTM decay has been found, showing that the minimum local...

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...

Neoclassical tearing modes on AUG: improved scaling laws, high confinement at high βN and new stabilization experiments (2003)

Günter,S., Gantenbein,G., Gude,A., Igochine,V., Maraschek,M., Sauter,O., ...

The accuracy of the scaling laws derived so far for the normalised beta values at the onset of neoclassical tearing modes is limited as the results depend on the presence and magnitude of seed...

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...

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...

Integrated scenario in JET using real-time profile control (2003)

Joffrin,E., Crisanti,F., Felton,R., Litaudon,X., Mazon,D., Moreau,D., ...

The recent development of real-time measurements and control tools in JET has enhanced the reliability and reproducibility of the relevant ITER scenarios. Diagnostics such as charge exchange,...

ELM-free stationary H-mode plasmas in the ASDEX Upgrade tokamak (2003)

Suttrop, W., Maraschek, M., Conway, G. D., Haas, G., Horton, L. D., ...

ELM-free H-mode plasmas with stationary plasma density and radiation level are obtained in the ASDEX Upgrade tokamak with large clearance between the last closed flux surface and the wall, and...

Neoclassical tearing modes on ASDEX Upgrade: improved scaling laws, high confinement at high βN and new stabilization experiments (2003)

Günter, S., Gantenbein, G., Gude, A., Igochine, V., Maraschek, M., Mück, A., ...

In this paper, recent results on the physics of neoclassical tearing modes (NTMs) achieved on ASDEX Upgrade are reported. A scaling law for NTM decay has been found, showing that the minimum local...

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...

Neoclassical tearing modes on AUG: improved scaling laws, high confinement at high βN and new stabilization experiments (2003)

Günter, S., Gantenbein, G., Gude, A., Igochine, V., Maraschek, M., Sauter, O., ...

The accuracy of the scaling laws derived so far for the normalised beta values at the onset of neoclassical tearing modes is limited as the results depend on the presence and magnitude of seed...

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...

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...

Integrated scenario in JET using real-time profile control (2003)

Joffrin, E., Crisanti, F., Felton, R., Litaudon, X., Mazon, D., Moreau, D., ...

The recent development of real-time measurements and control tools in JET has enhanced the reliability and reproducibility of the relevant ITER scenarios. Diagnostics such as charge exchange,...

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...

Integrated scenario in JET using real-time profile control (2003)

Joffrin, E., Crisanti, F., Felton, R., Litaudon, X., Mazon, D., Moreau, D., ...

The recent development of real-time measurements and control tools in JET has enhanced the reliability and reproducibility of the relevant ITER scenarios. Diagnostics such as charge exchange,...

Neoclassical tearing modes on ASDEX upgrade: improved scaling laws, high confinement at high, beta N and new stabilization experiments (2003)

Gunter, S., Gantenbein, G., Gude, A., Igochine, V., Maraschek, M., Muck, A., ...

In this paper, recent results on the physics of neoclassical tearing modes (NTMs) achieved on ASDEX Upgrade are reported. A scaling law for NTM decay has been found, showing that the minimum local...

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...

Transport in high normalized beta discharges on ASDEX Upgrade (2002)

Na,Y. S., Sips,A. C. C., Gruber,O., Hobirk,J., Pereverzev,G.

An advanced high confinement mode scenario with normalized beta (beta(N)) up to 3.5 in stationary conditions (up to 20 energy confinement times) and beta(N) = 3.8 transiently, has been obtained in...

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...

Transport in high normalized beta discharges on ASDEX Upgrade (2002)

Na, Y. S., Sips, A. C. C., Gruber, O., Hobirk, J., Pereverzev, G.

An advanced high confinement mode scenario with normalized beta (beta(N)) up to 3.5 in stationary conditions (up to 20 energy confinement times) and beta(N) = 3.8 transiently, has been obtained in...

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...

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...

Overview of JET results in support of the ITER physics basis (2001)

Adams, J. M., Ageladarakis, P., Alper, B., Altmann, H., Arshad, S., Bainbridge, N., ...

The JET experimental campaign has focused on studies in support of the ITER physics basis. An overview of the results obtained is given for the reference ELMy H mode and advanced scenarios, which in...

D-T fusion with ion cyclotron resonance heating in the JET tokamak (1998)

Start, D. F. H., Jacquinot, J., Bergeaud, V., Bhatnagar, V. P., Cottrell, G. A., Clement, S., ...

Ion cyclotron resonance heating (ICRH) experiments have been carried out in JET D-T plasmas using scenarios applicable to reactors. Deuterium minority heating in tritium plasmas is used for the first...

High performance Joint European Torus (JET) plasmas for deuterium-tritium operation with the MkII divertor (1997)

Jones, T. T. C., Adams, J. M., Ageladarakis, P., AliArshad, S., Alper, B., Altmann, H., ...

Planned experiments in the Joint European Torus [Plasma Physics and Controlled Fusion Research, Proceedings, 13th International Conference, Washington, D.C., 1990 (International Atomic Energy Agency,...

Latest JET results in deuterium and deuterium-tritium plasmas (1997)

Adams, J. M., Ageladarakis, P., Arshad, S. A., Alper, B., Altmann, H., Andrew, P., ...

All major JET systems have been fully commissioned for D-T and the DTE1 series of experiments has started with the D-T fuel mixture and operating conditions foreseen for ITER. In the area of ITER...

JET results with the new pumped divertor and implications for ITER (1995)

Adams, J. M., Ageladarakis, P., Alper, B., Altmann, H., Andrew, P., AliArshad, S., ...

This paper presents an overview of results of the 1994/95 experimental campaign on JET with the new pumped divertor and draws implications for ITER in the areas of detached and radiative divertor...

First Results with the Modified Jet - the Jet Team (1994)

Adams, J. M., Agarici, Y., Ageladarakis, P., Alper, B., Altmann, H., Andrew, P., ...

JET was extensively modified in the 1992/93 shutdown. The new pumped divertor and many new systems were brought into operation early in 1994. Operations have progressed to 4MA plasma current and,...