Scientific Commons: W. Fundamenski

Particle flow measurements parallel to the total magnetic field direction have been obtained for the first time in the TCV tokamak scrape-off layer. The plasma shape flexibility of TCV, coupled with...

Transient heat loads in current fusion experiments, extrapolation to ITER and consequences for its operation (2007)

Loarte, A., Saibene, G., Sartori, R., Riccardo, V., Andrew, P., Paley, J., ...

New experimental results on transient loads during ELMs and disruptions in present divertor tokamaks are described and used to carry out a extrapolation to ITER reference conditions and to draw...

Chapter 4: Power and particle control (2007)

Loarte, A., Lipschultz, B., Kukushkin, A. S., Matthews, G. F., Stangeby, P. C., Asakura, N., ...

Progress, since the ITER Physics Basis publication (ITER Physics Basis Editors et al 1999 Nucl. Fusion 39 2137-2664), in understanding the processes that will determine the properties of the plasma...

Divertor particle and power deposition profiles in JET ELMy H-mode discharges (2007)

Jachmich, S., Eich, T., Fundamenski, W., Kallenbach, A., Pitts, R. A.

The transient pulses of heat and particles arriving at the divertor target plates as a consequence of upstream ELM activity have been characterised at JET using an array of target embedded Langmuir...

Turbulent transport in the TCV SOL (2007)

Garcia, O. E., Pitts, R. A., Horacek, J., Nielsen, A. H., Fundamenski, W., Graves, J. P., ...

From probe measurements in the far SOL of TCV it is demonstrated that while the particle density profile becomes increasingly broader with increasing line averaged density, the radial variation of...

Fluctuations and transport in the TCV scrape-off layer (2007)

Garcia, O. E., Horacek, J., Pitts, R. A., Nielsen, A. H., Fundamenski, W., Naulin, V., ...

Fluctuations and particle transport in the scrape-off layer of TCV plasmas have been investigated by probe measurements and direct comparison with two-dimensional interchange turbulence simulations...

ELM-wall interaction on JET and ITER (2007)

Fundamenski, W., Pitts, R. A.

Significant interaction of ELM filaments with the vessel wall is now observed on JET by several diagnostics. To interpret the experimental data, a model of ELM-filament evolution was developed, with...

Dissipative processes in interchange driven scrape-off layer turbulence (2007)

Fundamenski, W., Garcia, O. E., Naulin, V., Pitts, R. A., Nielsen, A. H., Rasmussen, J. J., ...

First principles expressions are given for the parameters governing collisional diffusion and parallel losses of mass, momentum and energy in tokamak scrape-off layer (SOL) plasmas. These...

ELM resolved energy distribution studies in the JET MKII Gas-Box divertor using infra-red thermography (2007)

Eich, T., Andrew, P., Herrmann, A., Fundamenski, W., Loarte, A., Pitts, R. A.

Using infra-red (IR) thermography, power loads onto the MKII Gas-Box divertor targets have been investigated in Type-I ELMy H-Mode plasmas at JET in medium current discharges (I-p = 2.6MA and B-T =...

A possible role of radial electric field in driving parallel ion flow in scrape-off layer of divertor tokamaks (2007)

Chankin, A. V., Coster, D. P., Asakura, N., Corrigan, G., Erents, S. K., Fundamenski, W., ...

The radial electric field in known to be one of the drivers of parallel ion flow in the SOL. It contributes to the ion Pfirsch-Schluter flow and also determines the 'return parallel flow' that can...

Discrepancy between modelled and measured radial electric fields in the scrape-off layer of divertor tokamaks: a challenge for 2D fluid codes? (2007)

Chankin, A. V., Coster, D. P., Asakura, N., Bonnin, X., Conway, G. D., Corrigan, G., ...

Examination of radial electric field (E,.) profiles in the scrape-off layer (SOL) of ASDEX Upgrade (AUG) and JET revealed large discrepancies between 2D fluid edge modelling and experiment....

Prospects for steady-state scenarios on JET (2007)

Litaudon, X., Bizarro, J.P.S., Challis, C.D., Crisanti, F., De Vries, P.C., Lomas, P., ...

Nuclear Fusion Vol.47 Nr.9, 1285 - 1292

Transient heat loads in current fusion experiments, extrapolation to ITER and consequences for its operation. (2007)

Loarte, A., Saibene, G., Sartori, R., Riccardo, V., Andrew, P., Paley, J., ...

Physica Scripta, T128(2007) S.222-28

Transient heat loads in current fusion experiments, extrapolation to ITER and consequences for its operation. (2007)

Loarte, A., Saibene, G., Sartori, R., Riccardo, V., Andrew, P., Paley, J., ...

11th Internat.Workshop on Plasma-Facing Materials and Components for Fusion Applications, Greifswald, October 10-12, 2006

Active control of type-I edge-localized modes with n=1 perturbation fields in the JET tokamak (2007)

Liang, Y., Koslowski, H. R., Thomas, P. R., Nardon, E., Alper, B., Andrew, P., ...

Type-I edge-localized modes (ELMs) have been mitigated at the JET tokamak using a static external n=1 perturbation field generated by four error field correction coils located far from the plasma....

Active control of type-I edge localized modes on JET (2007)

Liang, Y., Koslowski, H. R., Thomas, P. R., Nardon, E., Jachmich, S., Alper, B., ...

The operational domain for active control of type-I edge localized modes (ELMs) with an n = 1 external magnetic perturbation field induced by the ex-vessel error field correction coils on JET has...

Material Erosion and Redeposition during the JET MkIIGB-SRP Divertor Campaign (2006)

Kirschner, A., Philipps, V., Balden, M., Bonnin, X., Brezinsek, S., Coad, J., ...

Plasma-surface interaction, scrape-off layer and divertor physics: Implications for ITER (2006)

Lipschultz, B., Asakura, N., Bonnin, X., Coster, D., Counsell, G., Doerner, R., ...

Survey of Type I ELM Dynamics Measurements (2006)

Leonard, A.W., Asakura, N., Boedo, J.A., Becoulet, M., Counsell, G.F., Eich, T., ...

Turbulence simulations of interchange motions and intermittent transport in TCV scrape-off layer plasmas (2006)

Garcia, O.E., Pitts, R.A., Horacek, J., Nielsen, A.H., Fundamenski, W., Graves, J.P., ...

Turbulent transport in the TCV SOL (2006)

Garcia, O.E., Pitts, R.A., Horacek, J., Nielsen, A.H., Fundamenski, W., Graves, J.P., ...

Turbulent transport in the TCV SOL (2006)

Garcia, O.E., Pitts, R.A., Horacek, J., Nielsen, A.H., Fundamenski, W., Graves, J.P., ...

Parallel flow in TCV (2006)

Pitts, R.A., Horacek, J., Fundamenski, W., Nielsen, A.H., Garcia, O.E., Naulin, V., ...

Divertor Power Deposition and Target Current Asymmetries during Type-I ELMs in JET and ASDEX Upgrade (2006)

Eich, T., Kallenbach, A., Jachmich, S., Andrew, P.L., Fuchs, J.C., Fundamenski, W., ...

Divertor Particle and Power Deposition Profiles in JET ELMy H-Mode Discharges (2006)

Jachmich, S., Eich, T., Fundamenski, W., Kallenbach, A., Pitts, R.A.

ELM filament interaction with outboard limiters on JET and ITER (2006)

Fundamenski, W., Pitts, R.A.

Transient heat loads in current fusion experiments, extrapolation to next step devices and consequences for their operation (2006)

Loarte, A., Saibene, G., Sartori, R., Riccardo, V., Andrew, P., Paley, J., ...

On the origin of anomalous radial transport in the tokamak SOL (2006)

Pitts, R.A., Horacek, J., Garcia, O.E., Fundamenski, W., Graves, J.P., Naulin, V., ...

ELM transport in the JET scrape-off layer (2006)

Pitts, R.A., Fundamenski, W., Andrew, P., Arnoux, G., Bonnin, X., Coster, D., ...

ELM Transport in the JET Scrape-Off Layer (2006)

Pitts, R.A., Andrew, P., Arnoux, G., Eich, T., Fundamenski, W., Gauthier, E., ...

ELM Transport in the JET Scrape-Off Layer (2006)

Pitts, R.A., Andrew, P., Arnoux, G., Eich, T., Fundamenski, W., Gauthier, E., ...

On the origin of anomalous radial transport in the tokamak SOL (2006)

Horacek, J., Garcia, O.E., Pitts, R.A., Fundamenski, W., Graves, J.P., Naulin, V., ...

On the origin of anomalous radial transport in the tokamak SOL (2006)

Horacek, J., Garcia, O.E., Pitts, R.A., Fundamenski, W., Graves, J.P., Naulin, V., ...

Material erosion and redeposition during the JET MkIIGB-SRP divertor campaign (2006)

Kirschner, A., Philipps, V., Balden, M., Bonnin, X., Brezinsek, S., Coad, J.P., ...

ELMs and disruptions in ITER: Expected Energy Fluxes on Plasma Facing Components from Multi-machine Experimental Extrapolations and Consequences for ITER Operation (2006)

Loarte, A., Saibene, G., Sartori, R., Campbell, D., Riccardo, V., Andrew, P., ...

Far SOL ELM ion energies in JET (2006)

Pitts, R. A., Fundamenski, W., Erents, S. K., Andrew, Y., Loarte, A., Silva, C.

There is an increasing body of evidence that the energy lost from diverted tokamak plasmas due to edge localized mode (ELM) activity may not be confined solely to deposition on divertor components....

Integrated ELM modelling (2006)

Lonnroth, J. S., Bateman, G., Becoulet, M., Beyer, P., Corrigan, G., Figarella, C., ...

This paper presents a short overview of current trends and progress in integrated ELM modelling. First, the concept of integrated ELM modelling is introduced, various interpretations of it are given...

Survey of Type I ELM dynamics measurements (2006)

Leonard, A. W., Asakura, N., Boedo, J. A., Becoulet, M., Counsell, G. F., Eich, T., ...

This report summarizes Type I edge localized mode (ELM) dynamics measurements from a number of tokamaks, including ASDEX-Upgrade, DIII-D, JET, JT-60U and MAST, with the goal of providing guidance and...

Interchange turbulence in the TCV scrape-off layer (2006)

Garcia, O. E., Horacek, J., Pitts, R. A., Nielsen, A. H., Fundamenski, W., Graves, J. P., ...

Probe measurements of electrostatic plasma fluctuations in the scrape-off layer (SOL) of the TCV tokamak are compared with the results from two-dimensional interchange turbulence simulations....

A model of ELM filament energy evolution due to parallel losses (2006)

Fundamenski, W., Pitts, R. A.

In this paper, two simplified models of edge localized mode (ELM) power exhaust are developed, one based on the kinetic and the other on the fluid treatment of parallel losses. These models are found...

Integrated ELM Modelling. (2006)

Lönnroth, J.S., Bateman, G., Becoulet, M., Beyer, P., Corrigan, G., Figarella, C., ...

10th Internat.Workshop on Plasma Edge Theory in Fusion Devices (PET 10), Jülich, October 17-19, 2005

Integrated ELM Modelling. (2006)

Lönnroth, J.S., Bateman, G., Becoulet, M., Beyer, P., Corrigan, G., Figarella, C., ...

Contributions to Plasma Physics, 46(2006) S.726-38

Power Exhaust on JET: an Overview of Dedicated Experiments (2005)

Fundamenski, W., Andrew, P., Eich, T., Matthews, G. F., Pitts, R. A., Riccardo, V., ...

Integrated modelling of material migration and target plate power handling at JET (2005)

Coster, D.P., Bonnin, X., Chankin, A., Corrigan, G., Erents, S. K., Fundamenski, W., ...

Material erosion and migration in tokamaks. Invited paper (2005)

Pitts, R. A., Coad, J. P., Coster, D. P., Federici, G., Fundamenski, W., Horacek, J., ...

Tritium Pathways in JET Trace Tritium Transport Experiments (2005)

Hogan, J., Parail, V., Coster, D., Reiter, D., Belo, P., ...

Material erosion and migration in tokamaks (2005)

Pitts, R. A., Coad, J. P., Coster, D. P., Federici, G., Fundamenski, W., Horacek, J., ...

The issue of first wall and divertor target lifetime represents one of the greatest challenges facing the successful demonstration of integrated tokamak burning plasma operation, even in the case of...

Edge and divertor physics with reversed toroidal field in JET (2005)

Pitts, R. A., Andrew, P., Bonnin, X., Chankin, A. V., Corre, Y., Corrigan, G., ...

Asymmetries are a ubiquitous feature of the scrape-off layer (SOL) and divertor plasmas in any tokamak and are thought to be driven primarily by a variety of drift flows, the directions of which...

EDGE2D code simulations of SOL flows and in-out divertor asymmetries in JET (2005)

Kirnev, G. S., Corrigan, G., Coster, D., Erents, S. K., Fundamenski, W., Matthews, G. F., ...

EDGE2D simulations show that high SOL flows can be generated when an additional radial convective transport is applied in the SOL and pedestal region along with a 'ballooning-like' poloidal variation...

The effect of field reversal on the JET MkIIGB-SRP divertor performance in L-mode density limit discharges (2005)

Huber, A., Rapp, J., Andrew, P., Coad, P., Corrigan, G., Erents, K., ...

The effect of field reversal on the JET MkIIGB-SRP divertor performance has been investigated in L-mode density limit discharges. These experiments show that the direction of the magnetic field has a...

Interchange turbulence in the TCV scrape-off layer (2005)

Garcia, O.E., Horacek, J, Pitts, R A, Nielsen, A H, Fundamenski, W, Graves, J P, ...

ELM-averaged power exhaust on JET (2005)

Fundamenski, W., Pitts, R. A., Matthews, G. F., Riccardo, V., Sipila, S.

This paper describes experiments performed on JET over the past two years dedicated to characterizing ELM-averaged power exhaust (based on time-averaged divertor power deposition profiles), with an...

Effect of B x del B direction on SOL energy transport in JET (2005)

Fundamenski, W., Andrew, P., Erents, K., Huber, A., Kirnev, G., Matthews, G., ...

The toroidal field and plasma current were reversed in recent JET experiments to yield a large number of good forward-reversed matched pairs. The direction, magnitude and scaling of the poloidal...

Power deposition onto plasma facing components in poloidal divertor tokamaks during type-I ELMS and disruptions (2005)

Eich, T., Herrmann, A., Pautasso, G., Andrew, P., Asakura, N., Boedo, J. A., ...

A comparative analysis of the spatial and temporal characteristics of transient energy loads (ELMs and disruptions) on plasma facing components (PFCs) in present tokamak devices and their...

INSTITUTE OF PHYSICS PUBLISHING PLASMA PHYSICS AND CONTROLLED FUSION Plasma Phys. Control. Fusion 47 (2005) B303–B322 doi:10.1088/0741-3335/47/12B/S22 Material erosion and migration in tokamaks (2005)

R A Pitts, J P Coad, D P Coster, G Federici, W Fundamenski, J Horacek, ...

The issue of first wall and divertor target lifetime represents one of the greatest challenges facing the successful demonstration of integrated tokamak burning plasma operation, even in the case of...

Reduction of divertor heat load in JET ELMy H-modes using impurity seeding techniques (2004)

Rapp, J., Monier-Garbet, P., Matthews, G. F., Sartori, R., Andrew, P., Dumortier, P., ...

Divertor modelling of septum assessment experiments in JET MkIIGB (2004)

Tsitrone, E., Andrew, P., Bonnin, X., Coad, P., Coster, D., Fundamenski, W., ...

Characterization of pedestal parameters and edge localized mode energy losses in the Joint European Torus and predictions for the International Thermonuclear Experimental Reactor (2004)

Loarte, A., Saibene, G., Sartori, R., Eich, T., Kallenbach, A., Suttrop, W., ...

Inner and outer power and energy asymmetries during L-mode power staircase pulses with forward and reversed magnetic field (2004)

Corre, Y., Andrew, P., Eich, T., Fundamenski, W., Gauthier, E., Hogan, J., ...

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

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

Reduction of divertor heat load in JET ELMy H-modes using impurity seeding techniques (2004)

Rapp, J., Monier-Garbet, P., Matthews, G. F., Sartori, R., Andrew, P., Dumortier, P., ...

This version is available at the following URL: http://dx.doi.org/10.1088/0029-5515/44/2/013

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

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

This version is available at the following Publisher URL: http://stacks.iop.org/0741-3335/46/519

Divertor modelling of septum assessment experiments in JET MkIIGB (2004)

Tsitrone, E., Andrew, P., Bonnin, X., Coad, P., Coster, D., Fundamenski, W., ...

We present results obtained from modeling the septum assessment experiments of the JET MkIIGB divertor with the B2-Eirene code package. Similar L-mode discharges have been performed with and without...

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...

A comparison of experimental measurements and code results to determine flows in the JET SOL (2004)

Erents, S. K., Pitts, R. A., Fundamenski, W., Gunn, J. P., Matthews, G. F.

Two reciprocating probe systems, at the same poloidal position at the top of the JET torus but toroidally separated by 180degrees, have been used to measure parallel flow in the scrape-off layer...

Steady-state and transient power handling in JET (2003)

Matthews, G. F., Andrew, P., Eich, T., Fundamenski, W., Herrmann, A., Loarte, A., ...

Steady-state and transient power deposition profiles have been measured in the JET MIIGB divertor using improved diagnostic techniques involving the use of fast infrared (IR), thermocouples and...

The effect of ion orbit losses on JET edge plasma simulations (2003)

Matthews, G. F., Corrigan, G., Erents, K., Fundamenski, W., Kallenbach, A., Kurki-Suonio, T., ...

Ion orbit losses appear to be a prime candidate for explaining the narrow power deposition profiles in JET. In this paper we address the question as to whether the coupling of momentum from these...

Comparing scrape-off layer and divertor physics in JET pure He and D discharges (2003)

Pitts, R. A., Andrew, P., Andrew, Y., Becoulet, C., Coffey, I., Coster, D., ...

Though helium plasmas are one option for the low activation phase of ITER, little effort has thus far been devoted to studying them in a large, diverted tokamak. A recent campaign on JET has...

JET carbon screening experiments using methane gas puffing and its relation to intrinsic carbon impurities (2003)

Strachan, J. D., Fundamenski, W., Charlet, M., Corrigan, G., Erents, K., Gafert, J., ...

JET carbon screening experiments were performed using methane gas injection. L-Mode experiments scanned parameters influencing the JET scrape-off-layer (SOL) and/or intrinsic impurity level. Scaling...

An overview of JET edge modelling activities (2003)

Coster, D. P., Bonnin, X., Corrigan, G., Dejarnac, R., Fenstermacher, M., Fundamenski, W., ...

A number of codes are in use at JET to model the edge plasma. The range of edge codes is described as is the range of physics issues being explored by these codes. The balance between focussed...

Reduction of divertor heat load in JET ELMy H-modes using impurity seeding techniques (2003)

Rapp, J., Monier-Garbet, P., Andrew, P., Dumortier, P., Eich, T., Fundamenski, W., ...

One of the most severe problems for fusion reactors is the power load on the divertor target plates. In order to reduce the power load in the divertor radiation cooling by seeding of impurities is...

L-mode density limits at JET: E ect of septum removal in the Mk-II gas box divertor (2003)

Rapp, J., Fundamenski, W., Gafert, J., Huber, A., Jachmich, S., Matthews, G.F., ...

Comparing scrape-off layer and divertor physics in JET pure He and D discharges (2003)

Pitts, R. A., Andrew, P., Andrew, Y., Becoulet, M., Coffey, I., Coster, D., ...

Though helium plasmas are one option for the low activation phase of ITER, little effort has thus far been devoted to studying them in a large, diverted tokamak. A recent campaign on JET has...

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...

Deuterium to helium plasma-wall change-over experiments in the JET MkII-gas box divertor (2003)

Hillis, D. L., Loarer, T., Bucalossi, J., Pospieszczyk, A., Fundamenski, W., Matthews, G., ...

The deuterium and helium dynamics in the plasma and subdivertor regions of JET are compared during a sequence of similar ohmic and ICRH pulses where 100% He gas is injected into the JET vacuum...

An overview of JET edge modelling activities (2003)

Coster, D. P., Bonnin, X., Corrigan, G., Dejarnac, R., Fenstermacher, M., Fundamenski, W., ...

A number of codes are in use at JET to model the edge plasma. The range of edge codes is described as is the range of physics issues being explored by these codes. The balance between focussed...

Interpretation of recent power width measurements in JET MkIIGB ELMy H-modes (2002)

Fundamenski, W., Sipilä, S., Matthews, G. F., Riccardo, V., Andrew, P., Eich, T., ...

Helium and neon enrichment studies in the JET mark IIAP and mark IIGB divertors (2002)

Groth, M., Andrew, P., Fundamenski, W., Guo, H. Y., Hillis, D. L., Hogan, J. T., ...

Adequate helium enrichment and exhaust have been achieved in reactor relevant ELMy H mode plasmas in JET performed in the Mark II divertor geometry. These quantities, describing the retention of...

Particle recirculation studies in JET (2002)

Tsitrone, E., Bucalossi, J., Loarer, T., Ghendrih, P., Loarte, A., Andrew, P., ...

A global particle balance analysis has been applied to a variety of L-mode and H-mode deuterium discharges of the C4 campaign of JET, performed at a lower wall temperature, in different magnetic...

Edge transport analysis of JET H-mode discharges and the possible influence of radial drift velocities (2002)

Kallenbach, A., Andrew, Y., Beurskens, M., Corrigan, G., Eich, T., Erents, K., ...

Analysis of SOL Behaviour in MAST Using an Advanced Onion-Skin Solver (OSM2) (2001)

Kirk, A., Coster, D. P., Counsell, G. F., Fundamenski, W.

Comparison of the H-Mode Pedestal Density and its Underlying Physics on JET and ASDEX Upgrade (2001)

Kallenbach, A., Beurskens, M., Dux, R., Erents, K., Fundamenski, W., Korotkov, A., ...

JET and ASDEX Upgrade Divertor Modeling. (2001)

Coster, D.P., Corrigan, G., Beurskens, M., Erents, K., Fundamenski, W., Stamp, M., ...

Novel Method to Study SOL-Response to ELMs by Divertor Target Probes in JET (2001)

Jachmich, S., Laux, M., Becoulet, M., Eich, T., Loarte, A., Matthews, G.F., ...

Particle and Power Fluxes during an ELM Observed by Probes in the Divertors of ASDEX Upgrade and JET (2001)

Laux, M., Jachmich, S., Herrmann, A., Matthews, G.F., Fundamenski, W.