R. A. Pitts

Details der Publikationsliste

Zeitraum

1992 - 2009

Anzahl

281

Co-Autoren

High heat flux components - readiness to proceed from near term fusion systems to power plants. (2009)

Raffray, A.R., Nygren, R., Whyte, D.G., Abdel-Khalik, S., Dörner, R., Escourbiac, F., ...

36th International Conference on Plasma Science (ICOPS) and 23rd Symposium on Fusion Engineering (SOFE-23), San Diego, Calif., May 31 - June 5, 2009

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...

Radiation distributions in TCV (2007)

Veres, G., Pitts, R. A., Wischmeier, M., Gulejova, B., Horacek, J., Kalvin, S.

Total radiative powers measured by foil bolometer and AXUV camera systems are compared to SOLPS5 simulations in low and high density deuterium and helium diverted discharges on the TCV tokamak. For...

Overview of co-deposition and fuel inventory in castellated divertor structures at JET (2007)

Rubel, M. J., Coad, J. P., Pitts, R. A.

The main focus of this work is fuel retention in plasma components of the JET water-cooled Mk-I divertors operated with small tiles, first with carbon fibre composite (CFC) and then with castellated...

Parallel SOL flow on TCV (2007)

Pitts, R. A., Horacek, J., Fundamenski, W., Garcia, O. E., Nielsen, A. H., Wischmeier, M., ...

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...

Sheath heat transmission factors on TCV (2007)

Marki, J., Pitts, R. A., Eich, T., Herrmann, A., Horacek, J., Sanchez, F., ...

Despite its importance in determining the calculated surface power flux predicted, for example, by scrape-off layer simulation codes, the sheath heat transmission factor, gamma remains a quantity...

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...

SOLPS5 modelling of the type III ELMing H-mode on TCV (2007)

Gulejova, B., Pitts, R. A., Wischmeier, M., Behn, R., Coster, D., Horacek, J., ...

Although ohmic H-modes have long been produced on TCV and the effects of ELMs at the divertor target studied in some detail, no attempt has yet been made to model the scrape-off layer (SOL) in these...

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...

Divertor power deposition and target current asymmetries during type-1 ELMS in ASDEX Upgrade and JET (2007)

Eich, T., Kallenbach, A., Pitts, R. A., Jachmich, S., Fuchs, J. C., Herrmann, A., ...

Analysis of the type-l ELM power load asymmetries using infra-red thermography and target current measurements is performed ASDEX Upgrade Upper Single Null and JET DOC-L type-I ELMy H-Mode discharges...

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 =...

First mirror tests for ITER: Influence of material choice on the erosion/deposition mechanisms affecting optical reflectivity (2007)

De Temmerman, G., Pitts, R. A., Voitsenya, V. S., Marot, L., Veres, G., Maurer, M., ...

Almost all optical diagnostics systems on ITER will be based on in-vessel metallic first mirrors. The possible deterioration of their surface reflectivity as a result of erosion by charge-exchange...

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....

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

Mirror test for International Thermonuclear Experimental reactor at the JET tokamak: An overview of the program (2006)

Rubel, M. J., De Temmerman, G., Coad, J. P., Vince, J., Drake, J. R., Le Guern, F., ...

Metallic mirrors will be essential components of all optical spectroscopy and imaging systems for plasma diagnosis that will be used at the next-step magnetic fusion experiment, International...

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....

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...

Studies of the 'Quiescent H-mode' regime in ASDEX Upgrade and JET (2005)

Suttrop, W., Hynonen, V., Kurki-Suonio, T., Lang, P. T., Maraschek, M., Neu, R., ...

The stationary edge localized mode (ELM)-free 'Quiescent H-mode' (QH-mode) regime, obtained with counter neutral beam injection, is studied in ASDEX Upgrade and Joint European Torus. QH-mode plasmas...

Methane screening in JET reverse field experiments (2005)

Strachan, J. D., Alper, B., Corrigan, G., Erents, S. K., Giroud, C., Korotkov, A., ...

JET plasmas with reverse magnetic field feature a different SOL flow than those with normal field. The observed carbon fuelling efficiency from injecting methane gas was similar in reverse and normal...

ELMS and strike point jumps (2005)

Solano, E. R., Jachmich, S., Villone, F., Hawkes, N., Corre, Y., Pitts, R. A., ...

If an ELM is a peeling of flux surfaces from the plasma, due to a broken separatrix, current density is lost as well as particles and energy. The fast loss of a current-carrying plasma layer modifies...

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...

Overview of edge electrostatic turbulence experiments on TCV (2005)

Horacek, J., Pitts, R. A., Graves, J. P.

Experiments on edge turbulence in the TCV tokamak have been performed for the first time at the beginning of 2003. This paper presents an overview of some of the results obtained, concentrating in...

Self-similar density turbulence in the TCV tokamak scrape-off layer (2005)

Graves, J. P., Horacek, J., Pitts, R. A., Hopcraft, K. I.

Plasma fluctuations in the scrape-off layer (SOL) of the TCV tokamak exhibit statistical properties which are universal across a broad range of discharge conditions. Electron density fluctuations,...

Safety factor profile requirements for electron ITB formation in TCV (2005)

Goodman, T. P., Behn, R., Camenen, Y., Coda, S., Fable, E., Henderson, M. A., ...

On the Tokamak a Configuration Variable (TCV), electron internal transport barriers (eITBs) can be formed during a gradual evolution from a centrally peaked to a hollow current profile while all...

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...

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...

Outer divertor target deposited layers during reversed magnetic field operation in JET (2005)

Andrew, P., Coad, J. P., Corre, Y., Eich, T., Herrmann, A., Matthews, G. F., ...

Divertor surface temperatures are significantly affected by the presence of deposited surface layers. This phenomenon can be used to monitor deposited layer evolution on a shot-by-shot basis. It was...

Third-harmonic X-mode, real-time controlled top-launch ECW experiments on TCV Tokamak (2005)

Alberti, S., Arnoux, G, Porte, L, Bortolon, A, Karpushov, A, Martin, Y, ...

In the moderate magneticfield of TCV (1.5T), the recently installed X3 system (3 gyrotrons @118 GHz, 0.45 MW/each, 2s) broadens the operational space with the possibility of heating plasmas at high...

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...

The influence of molecular dynamics on divertor detachment in TCV (2004)

Wischmeier, M., Pitts, R. A., Alfier, A., Andrebe, Y., Behn, R., Coster, D., ...

If vibrationally excited molecules are discretised into individual species and proper account is taken of the toroidal geometry in simulating neutrals, some improvement can be made in simulating the...

Fluctuation measurements using a five-pin triple probe in the Joint European Torus boundary plasma (2004)

Silva, C., Goncalves, B., Hidalgo, C., Pedrosa, M. A., Erents, K., Matthews, G., ...

A multi-probe system has been developed to investigate the importance of electron temperature fluctuations turbulent transport in the Joint European Torus boundary plasma. The compact five-pin triple...

Particle-in-cell simulations of the impact of retarding field analyser probe head geometry on ion saturation current measurements (2004)

Panek, R., Pitts, R. A., Gunn, J. R., Erents, S. K.

The Retarding Field Analyser (REA) is essentially the only practical tool for the measurement of ion energies parallel to the total magnetic field in the tokamak scrape-off layer plasma. One such...

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...

AXUV bolometer and Lyman-alpha camera systems on the TCV tokamak (2004)

Degeling, A. W., Weisen, H., Zabolotsky, A., Duval, B. P., Pitts, R. A., Wischmeier, M., ...

A set of seven twin slit cameras, each containing two 20-element linear absolute extreme ultraviolet photodiode arrays, has been installed on the Tokamak a Configuration Variable. One array in each...

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...

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...

Recent results from the electron cyclotron heated plasmas in Tokamak à Configuration Variable (TCV) (2003)

Henderson, M. A., Alberti, S., Angioni, C., Arnoux, G., Behn, R., Blanchard, P., ...

In noninductively driven discharges, 0.9 MW second harmonic (X2) off-axis co-electron cyclotron current drive deposition is combined with 0.45 MW X2 central heating to create an electron internal...

An overview of recent results from the TCV Tokamak (2003)

Goodman, T. P., Ahmed, S. M., Alberti, S., Andrèbe, Y., Angioni, C., Appert, K., ...

The TCV tokamak ( R = 0.88 m, κ = 2.5, are produced at low normalized current using far off-axis EC heating (ECH) and ECCD to broaden the current profile. Third harmonic heating is used to heat the...

Divertor detachment during pure helium plasmas in JET (2003)

Wischmeier, M., Coster, D., Bonnin, X., Eich, T., Huber, A., Ingesson, C., ...

A campaign of pure helium discharges in the JET tokamak equipped with the MarkIIGB divertor has been performed. This paper describes some of the experimental observations of divertor detachment...

Divertor detachment during pure helium plasmas in JET (2003)

Wischmeier, M., Coster, D., Bonnin, X., Eich, T., Huber, A., Ingesson, C., ...

A campaign of pure helium discharges in the JET tokamak equipped with the MarkIIGB divertor has been performed. This paper describes some of the experimental observations of divertor detachment...

Retarding field energy analyzer for the JET plasma boundary (2003)

Pitts, R. A., Chavan, R., Davies, S. J., Erents, S. K., Kaveney, G., Matthews, G. F., ...

Retarding field analyzers (RFAs) are essentially the only practical tool with which to measure the distribution of ion energies in the boundary plasma of magnetic fusion devices. The technique has...

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...

ELM driven divertor target currents on TCV (2003)

Pitts, R. A., Alberti, S., Blanchard, P., Horacek, J., Reimerdes, H., Stangeby, P. C.

There is currently both considerable interest in the physics of ELM transport in the scrape-off layer (SOL) and concern over the impact of the ELM power and particle loads on the divertor targets of...

Accessibility and properties of ELMy H-mode and ITB plasmas in TCV (2003)

Martin, Y. R., Henderson, M. A., Alberti, S., Amorim, P., Andrebe, Y., Appert, K., ...

This paper presents experimental results on the accessibility and the properties of plasmas with improved confinement in TCV. First, the H-mode threshold power is measured in Ohmic plasmas. Above an...

Predicted effects of parallel temperature gradients on the overestimation of TCV divertor target Langmuir probe T-e measurements (2003)

Horacek, J., Pitts, R. A., Stangeby, P. C., Batishchev, O., Loarte, A.

During high recycling conditions and divertor detachment in the TCV tokamak, divertor target Langmuir probes never measure electron temperatures much below similar to5 eV. Code simulations using...

Recent results from the electron cyclotron heated plasmas in Tokamak a Configuration Variable (TCV) (2003)

Henderson, M. A., Alberti, S., Angioni, C., Arnoux, G., Behn, R., Blanchard, P., ...

In noninductively driven discharges, 0.9 MW second harmonic (X2) off-axis co-electron cyclotron current drive deposition is combined with 0.45 MW X2 central heating to create an electron internal...

An overview of results from the TCV tokamak (2003)

Goodman, T. P., Ahmed, S. M., Alberti, S., Andrebe, Y., Angioni, C., Appert, K., ...

The Tokamak Configuration Variable (TCV) tokamak (R = 0.88 m, a < 0.25 m, B < 1.54 T) programme is based on flexible plasma shaping and heating for studies of confinement, transport, control and...

Statistical properties of turbulence: a new approach to characterize transport in fusion plasmas (2003)

Goncalves, B., Hidalgo, C., Pedrosa, M. A., Silva, C., Erents, K., Matthews, G., ...

A view of recent experimental results and progress in the characterization of the statistical properties of edge turbulence in fusion plasmas is given. The study of the dynamical interplay between...

Comparison of carbon and main ion radiation profiles in matched helium and deuterium plasmas in JET (2003)

Fenstermacher, M. E., Lawson, K. D., Porter, G. D., Erents, S. K., Ingesson, C., Matthews, G. F., ...

This paper examines the radiation profiles and corresponding ionization source profiles of carbon and main plasma ions in matched helium and deuterium. L-mode plasmas in JET. The radiation...

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...

Shape dependence of sawtooth inversion radii and profile peaking factors in TCV L mode plasmas (2002)

Weisen, H., Furno, I., Alberti, S., Angioni, C., Appert, K., Behn, R., ...

Sawtooth inversion radii and profile peaking factors of a large variety of ohmic and ECH heated L mode plasmas, including, elongations up to 2.6 and triangularities between -0.5 and 0.75, have been...

ECH physics and new operational regimes on TCV (2002)

Moret, J. M., Ahmed, S. M., Alberti, S., Andrebe, Y., Appert, K., Arnoux, G., ...

The physics of tokamak plasmas, in which electrons are heated by electron cyclotron heating (ECH) and whose current is driven by electron cyclotron current drive (ECCD), is investigated in this paper...

Overview of TCV results (2001)

Weisen, H., Alberti, S., Angioni, C., Appert, K., Bakos, J., Behn, R., ...

The TCV tokamak (R = 0.88 in, a < 0.25 in, BT < 1.54 T) is equipped with six 0.5 MW gyrotron sources operating at 82.7 GHz for second harmonic X mode ECH. By distributing the ECCD current sources...

Steady-state fully noninductive operation with electron cyclotron current drive and current profile control in the tokamak a configuration variable (TCV) (2001)

Sauter, O., Angioni, C., Coda, S., Gomez, P., Goodman, T. P., Henderson, M. A., ...

Fully noninductive, steady-state electron cyclotron current drive (ECCD) has been demonstrated for the first time in experiments carried out in the tokamak a configuration variable (TCV) [O. Sauter ,...

Divertor geometry effects on detachment in TCV (2001)

Pitts, R. A., Duval, B. P., Loarte, A., Moret, J. M., Boedo, J. A., Coster, D., ...

Experimental observations and some preliminary results from B2-Eirene code modelling of divertor detachment in the TCV tokamak are reported, with emphasis on the aspects of this detachment related to...

Stability and energy confinement of highly elongated plasmas in TCV (2001)

Hofmann, F., Behn, R., Coda, S., Goodman, T. P., Henderson, M., Lavanchy, P., ...

The operating space of the TCV tokamak has been extended to higher elongation, kappa = 2.8, and higher normalized current, I-N = I-p/aB = 3.6MA/mT, than were previously attainable. This has been...

Steady-state fully noninductive current driven by electron cyclotron waves in a magnetically confined plasma (2000)

Sauter, O., Henderson, M. A., Hofmann, F., Goodman, T., Alberti, S., Angioni, C., ...

A steady-state, fully noninductive plasma current has been sustained for the first time in a tokamak using electron cyclotron current drive only. In this discharge, 123 kA of current have been...

Technical issues associated with the control of steady state tokamaks (2000)

Lister, J. B., Bruzzone, P. L., Costley, A. E., Fukuda, T., Gribov, Y., Mertens, V., ...

Plasma control concepts are introduced which are likely to change when going from a 500-1000 s tokamak pulse to the discharges in a steady state tokamak, whose more economical design relies on the...

High-power ECH and fully non-inductive operation with ECCD in the TCV tokamak (2000)

Coda, S., Goodman, T. P., Henderson, M. A., Hofmann, F., Pietrzyk, Z. A., Sauter, O., ...

Experiments with high-power electron cyclotron heating (ECH) and current drive (ECCD) in the TCV tokamak are discussed. Power up to 2.7 MW from six gyrotrons is delivered to the tokamak at the...

Energy confinement and MHD activity in shaped TCV plasmas with localized electron cyclotron heating (1999)

Pochelon, A., Goodman, T. P., Henderson, M., Angioni, C., Behn, R., Coda, S., ...

Confinement in TCV electron cyclotron heated discharges was studied as a function of plasma shape, i.e. as a function of elongation, 1.1 < kappa < 2.15, and triangularity, -0.65 less than or equal to...

Experimental investigation of the effects of neon injection in TCV (1999)

Pitts, R. A., Refke, A., Duval, B. P., Furno, I., Joye, B., Lister, J. B., ...

This contribution describes the results of impurity seeding experiments using neon gas injection into the private fl zone of an ohmically heated TCV single null lower, deuterium fuelled, open...

The design of central column protection tiles for the TCV tokamak (1999)

Pitts, R. A., Chavan, R., Moret, J. M.

The large variety of plasma shapes produced in the TCV tokamak places unique demands on the plasma facing surfaces. In particular, the central column graphite armour tiles are solicited during the...

Fast bolometric measurements on the TCV tokamak (1999)

Furno, I., Weisen, H., Mlynar, J., Pitts, R. A., Llobet, X., Marmillod, P., ...

The design and first results are presented from a bolometric diagnostic with high temporal resolution recently installed on the TCV tokamak. The system consists of two pinhole cameras viewing the...

A Thomson scattering diagnostic for measurements in the divertor region of TCV (1999)

Behn, R., Rommers, J. H., Pitts, R. A., Pietrzyk, Z. A., Chavan, R., Marletaz, B.

For future divertor studies on TCV measurements of electron temperature and density and their spatial gradients along open flux surfaces will be of major interest. A Thomson scattering system is...

Effect of plasma shape on confinement and MHD behaviour in TCV (1997)

Weisen, H., Alberti, S., Berry, S., Behn, R., Blanchard, P., Bosshard, P., ...

The TCV tokamak (B-T < 1.5 T, R approximate to 0.88 m, a < 0.25 m) has produced a wide variety of plasma configurations, both diverted and limited, with elongations kappa(a), ranging from 0.9 to...

Divertor target profiles and recycling studies in TCV single null lower standard discharges (1997)

Pitts, R. A., Nieswand, C., Weisen, H., Anton, M., Behn, R., Chavan, R. F., ...

A 'standard', single null lower diverted discharge has been developed to enable continuous monitoring of the first wall conditions and to characterise the effectiveness and influence of wall...

Ohmic H-modes in the TCV tokamak (1996)

Weisen, H., Hofmann, F., Dutch, M. J., Martin, Y., Pochelon, A., Moret, J. M., ...

The TCV tokamak has obtained ohmic H-modes in virtually all diverted plasmas with the ion del B drift directed towards an X-point and in several elongated limiter plasmas. Troyon factors...

Effect on confinement of edge-localized modes in TCV (1996)

Weisen, H., Dutch, M. J., Hofmann, F., Martin, Y., Moret, J. M., Nieswand, C., ...

The effect of ELMs on confinement in ohmic H-modes has been investigated by analysing the rates of change of global parameters such as the electron content and the stored energy as a function of ELM...

Recent Results from the Tcv Tokamak (1995)

Weisen, H., Hoffmann, F., Dutch, M. J., Moret, J. M., Lister, J. B., Pochelon, A., ...

During the first two years of operation, the TCV tokamak has produced a large variety of plasma shapes and magnetic configurations, with 1.0 less than or equal to B-tor less than or equal to 1.46T,...

Ohmic H-mode and confinement in TCV (1995)

Moret, J. M., Anton, M., Barry, S., Behn, R., Besson, G., Buhlmann, F., ...

The unique flexibility of TCV for the creation of a wide variety of plasma shapes has been exploited to address some aspects of tokamak physics for which the shape may play an important role. The...

Elm Control During Double-Null Ohmic H Modes in Tcv (1995)

Dutch, M. J., Hofmann, F., Duval, B. P., Corboz, M., Hirt, A., Joye, B., ...

Precise control of the shape and position of double-null divertor configurations in the TCV tokamak has been used to trigger reliably the transition from ELM-free to ELMy ohmic H mode and back....

Creation and Control of Variably Shaped Plasmas in Tcv (1994)

Hofmann, F., Lister, J. B., Anton, M., Barry, S., Behn, R., Bernel, S., ...

During the first year of operation, the TCV tokamak has produced a large variety of plasma shapes and magnetic configurations, with 1.0 less than or equal to B(tor)less than or equal to 1.46T, I-p...

Experimental Measurements of the Fuelling Efficiency of Impurities injected into Textor (1993)

McCracken, G. M., Samm, U., Stangeby, P. C., Bertschinger, G., Boedo, J. A., Davies, S. J., ...

This version is available at http://dx.doi.org/10.1088/0029-5515/33/10/I01 Copyright © IOP Publishing Ltd.

Plasma Ion Mass-Spectrometry in the Textor Boundary (1992)

Matthews, G. F., Elder, D., McCracken, G. M., Monk, R. D., Pitts, R. A., Samm, U., ...

In this paper we present the first results obtained with a plasma ion mass spectrometer in the boundary of the TEXTOR tokamak. Measurements were made several days after TEXTOR was boronised....