C. Giroud

Details der Publikationsliste

Zeitraum

1990 - 2009

Anzahl

186

Co-Autoren

Observation of confined current ribbon in JET plasmas (2009)

Solano, E. R., Lomas, P. J., Alper, B., Xu, G. S., Andrew, Y., Arnoux, G., ...

we report the identification of a localised current structure inside the JET plasma. It is a field aligned closed helical ribbon, carrying current in the same direction as the background current...

Radio-frequency power injection and impurity profile control in JET (2009)

Valisa, M., Angioni, C., Carraro, L., Coffey, I., Giroud, C., Predebon, I., ...

36th European Physical Society Conference on Plasma Physics, Sofia, Bulgaria, June 29-July 3, 2009

Effect of ELMs on rotation and momentum confinement in H-mode discharges at JET (2009)

Versloot, T.W., Vries, De P.C., Giroud, C., Tala, Tuomas Et Al.

36th European Physical Society Conference on Plasma Physics, Sofia, Bulgaria, June 29-July 3, 2009

Scaling of rotation and momentum confinement in JET plasmas (2008)

Hua, M.D., De Vries, P.C., McDonald, D.C., Giroud, C., Janvier, M.F., Johnson, M.F., ...

35th EPS Conference on Plasma Physics, Hersonissos, Crete, Greece, June 9-13, 2008

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...

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....

Toroidal and poloidal momentum transport studies in JET (2007)

Tala, T., Andrew, Y., Crombé, Kristel, De Vries, P. C., Garbet, X., Hawkes, N., ...

This paper reports on the recent studies of toroidal and poloidal momentum transport in JET. The ratio of the global energy confinement time to the momentum confinement is found to be close to...

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....

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...

Scaling of density peaking in JET H-modes and implications for ITER (2006)

Weisen, H., Zabolotsky, A., Maslov, M., Beurskens, M., Giroud, C., Mazon, D.

Results from an extensive profile database analysis of JET density profiles in H-mode show that the density peaking factor n(e0)/ < n(e) > in JET H-modes increases as the effective collisionality...

The role of the radial electric field for the transition to high confinement regimes (2006)

Testa, D., Garzotti, L., Giroud, C.

The radial electric field E-r(x, t), and particularly its gradient, has been invoked by various theories and empirical models as a crucial parameter 'per se' for determining the transition to high...

Exploring a small sawtooth regime in Joint European Torus plasmas with counterinjected neutral beams (2006)

Nave, M. F. F., Koslowski, H. R., Coda, S., Graves, J., Brix, M., Buttery, R., ...

During a recent reversed toroidal field (B-T) campaign at the Joint European Torus (JET), experiments were performed to investigate the effect on sawteeth of neutral beam injection (NBI)-driven...

Plasma rotation and momentum transport studies at JET (2006)

De Vries, P. C., Rantamaki, K. M., Giroud, C., Asp, E., Corrigan, G., Eriksson, A., ...

An experimental study in plasma rotation and momentum transport was carried out at JET. The toroidal rotation profile was found to scale approximately with that of the ion temperature. However,...

Poloidal rotation dynamics, radial electric field, and neoclassical theory in the jet internal-transport-barrier region (2005)

Crombe, K, Andrew, Y, Brix, M, Giroud, C, Hacquin, S, Hawkes, N, ...

Results from the first measurements of a core plasma poloidal rotation velocity (v(theta)) across internal transport barriers (ITB) on JET are presented. The spatial and temporal evolution of the ITB...

Complex spectra in fusion plasmas (2005)

Von Hellermann, M.G., Bertschinger, G., Biel, W., Giroud, C., Jaspers, R., Jupen, C., ...

The need for quantitative evaluation of complex line emission spectra as observed in hot fusion plasmas initiated a challenging development of sophisticated interpretation tools based on integrating...

Collisionality and shear dependences of density peaking in JET and extrapolation to ITER (2005)

Weisen, H., Zabolotsky, A., Angioni, C., Furno, I., Garbet, X., Giroud, C., ...

Results from an extensive database analysis of JET density profiles in stationary conditions show that the density peaking factor n(e0)/< n(e)> in JET H modes increases from near 1.2 at high...

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...

Complex spectra in fusion plasmas (2005)

Von Hellermann, M.G., Bertschinger, G., Biel, W., Giroud, C., Jaspers, R., Jupen, C., ...

The need for quantitative evaluation of complex line emission spectra as observed in hot fusion plasmas initiated a challenging development of sophisticated interpretation tools based on integrating...

Complex spectra in fusion plasmas (2005)

Von Hellermann, M.G., Bertschinger, G., Biel, W., Giroud, C., Jaspers, R., Jupen, C., ...

The need for quantitative evaluation of complex line emission spectra as observed in hot fusion plasmas initiated a challenging development of sophisticated interpretation tools based on integrating...

Calibration of the charge exchange recombination spectroscopy diagnostic for core poloidal rotation velocity measurements on JET (2004)

Crombe, K, Andrew, Y, Giroud, C, Hawkes, N, Murari, A, Valisa, M, ...

This article describes recent improvements in the measurement of C6+ impurity ion poloidal rotation velocities in the core plasma of JET using charge exchange recombination spectroscopy. Two...

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

Towards the realization on JET of an integrated H-mode scenario for ITER (2004)

Ongena, J., Monier-Garbet, P., Suttrop, W., Andrew, Ph., Becoulet, M., Budny, R., ...

This version is available at the following URL: http://dx.doi.org/10.1088/0029-5515/44/1/015

Density peaking in low collisionlity ELMy H-mode in JET (2004)

Valovic, M., Budny, R., Garzotti, L., Garbet, X., Korotkov, A. A., Rapp, J., ...

This version is available at the following Publisher URL: http://stacks.iop.org/0741-3335/46/1877

Shear and collisionality dependences of particle pinch in JET L-mode plasmas (2004)

Weisen, H., Zabolotsky, A., Garbet, X., Mazon, X., Zabeo, L., Giroud, C., ...

The peakedness of the density profile in source-free MHD-quiescent L-mode plasmas with lower hybrid current drive is observed to decrease with decreasing peaking of the current profile. For the...

Density peaking in low collisionality ELMy H-mode in JET (2004)

Valovic, M., Budny, R., Garzotti, L., Garbet, X., Korotkov, A. A., Rapp, J., ...

Low collisionality, low particle source. ELMy H-modes (type-III) with sawteeth are produced in JET in order to address the question of density profile evolution in the reference q(95) = 3 ITER...

Towards the realization on JET of an integrated H-mode scenario for ITER (2004)

Ongena, J., Monier-Garbet, P., Suttrop, W., Andrew, P., Becoulet, M., Budny, R., ...

ELMy H-mode experiments at JET in 2000/mid-2002 have focused on discharges with normalized parameters for plasma density, energy confinement and beta similar to those of the ITER Q(DT) = 10 reference...

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...

Plasma rotation induced by directed waves in the ion-cyclotron range of frequencies (2004)

Eriksson, L. G., Johnson, T., Hellsten, T., Giroud, C., Kiptily, V. G., Kirov, K., ...

Changes of the toroidal plasma rotation induced by directed waves in the ion-cyclotron range of frequencies (ICRF) have been identified experimentally for the first time on the JET tokamak. The...

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...

Progress towards steady-state operation and real-time control of internal transport barriers in JET (2003)

Litaudon, X., Becoulet, A., Crisanti, F., Wolf, R. C., Baranov, Yu. F., Barbato, E., ...

In JET, advanced tokamak research mainly focuses on plasmas with internal transport barriers (ITBs) that are strongly influenced by the current density profile. A previously developed optimized shear...

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...

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...

Towards the realization on JET of an integrated H-mode scenario for ITER (2003)

Ongena, J., Monier-Garbet, P., Suttrop, W., Andrew, P., Bécoulet, M., Budny, R., ...

ELMy H-Mode experiments at JET since 2000 have focussed on the steady state and simultaneous realization of the ITER QDT=10 requirements in the normalized parameters for density, confinement and...

Progress towards steady-state operation and real time control of internal transport barriers in JET (2003)

Litaudon, X., Bécoulet, A., Crisanti, F., Wolf, R. C., Baranov, Yu. F., Barbato, E., ...

In JET advanced tokamak research mainly focuses on plasmas with internal transport barriers (ITBs), generated by modifications of the current profile. The formerly developed optimised shear regime...

Improved plasma confinement by ion Bernstein waves (IBWs) interacting with ions in JET (Joint European Torus) (2003)

Castaldo, C., Cesario, R., Andrew, Y., Cardinali, A., Kiptly, V., Mantsinen, M., ...

A new coupling scheme of ion Bernstein waves (IBW) to plasma ions, by mode conversion of fast waves, has been tested in D-³He plasma of the JET tokamak. Injecting 4.8 MW ion cyclotron radio...

Equilibria and stability of JET discharges with zero core current density (2003)

Stratton, B. C., Hawkes, N. C., Huysmans, G. T. A., Breslau, J. A., Zakharov, L. E., Alper, B., ...

Injection of Lower Hybrid Heating and Current Drive (LHCD) into the current ramp-up phase of JET discharges has produced extremely reversed q-profiles characterized by a core region of near zero...

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...

JET quasistationary internal-transport-barrier operation with active control of the pressure profile (2002)

Crisanti, F., Litaudon, X., Mailloux, J., Mazon, D., Barbato, E., Baranov, Y., ...

Quasistationary operation has been achieved on the Joint European Torus tokamak in internal-transport-barrier (ITB) scenarios, with the discharge time limited only by plant constraints. Full current...

q=1 advanced tokamak experiments in JET and comparison with ASDEX Upgrade (2002)

Joffrin, E., Wolf, R., Alper, B., Baranov, Y., Challis, C. D., De Baar, M., ...

The ASDEX Upgrade advanced tokamak scenario with central q close to 1 has been reproduced on JET. For almost identical q profiles, the comparative analysis does show similar features like the...

Towards fully non-inductive current drive operation in JET (2002)

Litaudon, X., Crisanti, F., Alper, B., Artaud, J. F., Baranov, Y. F., Barbato, E., ...

Quasi-steady operation has been achieved at JET in the high- confinement regime with internal transport barriers (ITBs). The ITB has been maintained up to 11s. This duration, much larger than the...

Radiation pattern and impurity transport in argon seeded ELMy H-mode discharges in JET (2002)

Puiatti, M. E., Mattioli, M., Telesca, V. M., Valisa, M., Coffey, I. H., Dumortier, P., ...

This version is available at the following Publisher URL: http://dx.doi.org/10.1088/0741-3335/44/9/305

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...

Correlation between magnetic shear and ExB flow shearing rate in JET ITB discharges (2001)

Esposito, B., Baranov, Y., Crisanti, F., Maget, P., Parail, V., Becoulet, A., ...

Proceedings of the 28th EPS Conference on 28th EPS Conference on Controlled Fusion and Plasma Physics. Funchal, Madeira, PT, 18 - 22 June 2001. Europhysics Conference Abstracts, Contributed Papers...