Effect of gas injection during LH wave coupling at ITER-relevant plasma-wall distances in JET (2009)
Ekedahl, A., Rantamäki, K., Goniche, M., Mailloux, J., Petrzilka, V., Alper, B., ...
Active control of type-I edge localized modes on JET. Invited Paper (2007)
Liang, Y., Koslowski, H. R., Thomas, P. R., Nardon, E., Jachmich, S., Alper, B., ...
Casati, A., Mantica, P., Van Eester, D., Hawkes, N., Imbeaux, F., Joffrin, E., ...
New results on electron heat wave propagation using ion cyclotron resonance heating power modulation in the Joint European Torus (JET) [P. H. Rebut , Nucl. Fusion 25, 1011 (1985)] plasmas...
Toroidal and poloidal momentum transport studies in JET (2007)
Tala, Tuomas, Andrew, Y., Crombé, K., De Vries, P.C., Garbet, X., Hawkes, N., ...
Nuclear Fusion Vol.47 Nr.8, 1012 - 1023
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...
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...
Marinoni, A., Mantica, P., Van Eester, D., Imbeaux, F., Mantsinen, M., Hawkes, N., ...
Understanding the physics of internal transport barriers (ITBs) is a crucial issue in developing ITER relevant advanced tokamak scenarios. To gain new information on ITBs, RF power modulation...
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...
ELMs and strike point jumps (2005)
Solano, E., Corre, Y., Villon, F., Hawkes, N., Jachmich, S., Loarte, A., ...
Progress in Understanding Heat Transport at JET (2005)
Mantica, P., Garbet, X., Angioni, C., Asp, E., De Baar, M., Baranov, Y., ...
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...
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...
Power modulation experiments in JET ITB plasmas (2004)
Mantica, P., Imbeaux, F., Mantsinen, M., Van Eester, D., Marioni, A., Hawkes, N., ...
Feasibility of a motional Stark effect system on the TCV tokamak (2004)
Siegrist, M. R., Hawkes, N., Weisen, H.
This article presents a feasibility study for a motional Stark effect diagnostic on the TCV tokamak. A numerical simulation code has been used to identify the optimal port arrangement and geometrical...
Feasibility of a motional Stark effect system on the TCV tokamak (2004)
Siegrist, M. R., Hawkes, N., Weisen, H.
This paper presents a feasibility study for a motional Stark effect (MSE) [F. M. Levinton , Phys. Rev. Lett. 63, 2060 (1989)] diagnostic on the TCV tokamak. A numerical simulation code has been used...
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...
Poloidal rotation velocity studies on JET (2004)
Crombé, Kristel, ANDREW, Y, BRIX, M, GIROUD, C, HAWKES, N, MURARI, A, ...
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...
Spatially resolved toroidal plasma rotation with ICRF on JET (2003)
Righi, E., Chan, V., DeGrassie, J., Kirov, K., Mantsinen, M., ...
Plasmas heated by ICRF only in the JET tokamak show distinct structures in the toroidal rotation profile, with regions where &ddiff;ω/&ddiff;r>0 when the minority cyclotron resonance layer is far...
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...
Bulk Plasma Rotation in the Presence of Waves in the Ion Cyclotron Range Frequencies (2003)
Assas, S., Giroud, C., DeGrassie, J., Hellsten, T., ...
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,...
On the measurement of poloidal rotation of ions in JET ITB plasmas (2003)
Crombé, Kristel, ANDREW, Y, GIROUD, C, HAWKES, N, SATTIN, F, VALISA, M, ...
Spatially resolved toroidal plasma rotation with ICRF on JET (2003)
Noterdaeme, Jean-Marie, RIGHI, E, CHAN, V, DEGRASSIE, J, KIROV, K, MANTSINEN, M, ...
Electron heated internal transport barriers in JET (2002)
Hogeweij, G. M. D., Baranov, Y., Conway, G. D., Cortes, S. R., De Baar, M. R., Hawkes, N., ...
By applying lower hybrid current drive (LHCD) for strong electron heating and off-axis current drive starting very early in the discharge, an electron internal transport barrier (eITB) can be...
Mailloux, J., Alper, B., Baranov, Y., Becoulet, A., Cardinali, A., Castaldo, C., ...
Physics of Plasmas Vol.9 Nr.5, 2156 - 2164
Hawkes, N., Andrew, Y., Challis, C., DeAngelis, R., Drozdov, V., Hobirk, J., ...
Plasma Physics and Controlled Fusion Vol.44 Nr.7, 1105 - 1125
Tala, Tuomas, Parail, V., Becoulet, A., Challis, C., Corrigan, G., Hawkes, N., ...
Plasma Physics and Controlled Fusion Vol.44 Nr.7, 1181 - 1202
Explorative studies for the development of fast He beam plasma diagnostics (2001)
Menhart, S., Proschek, M., Anderson, H., Summers, H., Stäbler, A., ...
Electron Heated Internal Transport Barriers in JET (2001)
Hogeweij, G.M.D., Baranov, Y., Challis, C.D., Conway, G., Crisanti, F., De Baar, M., ...
Sawtooth and Impurity Accumulation Control in JET Radiative Mantle Discharges (2001)
Nave, M.F.F., Rapp, J., Bolzonella, T., Dux, R., Hawkes, N., Jamich, S., ...
Toroidal Plasma Rotation with ECRF on JET (2001)
Righi, E., De Grassie, J., Chan, V., Nave, M.F.F., ...
Towards Full Current Drive Operation in JET (2001)
Litaudon, X., Crisanti, F., Mailloux, J., Baranov, Y., Barbato, E., Basiuk, V., ...
Recent progress on JET towards the ITER reference mode of operation at high density (2001)
Ongena, J., Suttrop, W., Becoulet, M., Cordey, G., Dumortier, P., Eich, T., ...
Recent progress towards obtaining high density and high confinement in JET as required for the ITER reference scenario at Q = 10 is summarized. Plasmas with simultaneous confinement H-98(y.2) = 1 and...
Hawkes, N., Stratton, B., Tala, Tuomas, Challis, C., Conway, G., DeAngelis, R., ...
Physical Review Letters Vol.87 Nr.11, 115001-1 - 115001-4
Tala, Tuomas, Parail, V., Beccoulet, A., Challis, C., Corrigan, G., Hawkes, N., ...
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...
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...
Extreme shear reversal in JET discharges (2001)
Hawkes, N., Stratton, B., Baranov, Y., Bolzonella, T., Challis, C., Cortes, S., ...
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...
ICRF current drive experiments on JET (2001)
Nguyen, F., Noterdame, J., Mayoral, M., Hellsten, T., Mantsinen, M., Hartmann, D., ...
Proceedings of the 28th EPS Conference on Controlled Fusion and Plasma Physics. Funchal, Madeira, PT, 18 - 22 June 2001. CD-ROM
Use of lower hybrid current drive and heating in optimised shear plasmas in JET (2001)
Mailloux, J., Alper, B., Baranov, Y., Barbato, E., Becoulet, A., Cardinali, 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...
Stability of JET discharges with zero core current density (2001)
Stratton, B., Hawkes, N., Breslau, J., Budny, R., Hender, T., ...
43rd Annual Meeting of the Division of Plasma Physics. Long Beach, CA, 29 Oct. - 2 Nov. 2001
Mailloux, J., Alper, B., Baranov, Y., Becoulet, A., Cardinali, A., Castaldo, C., ...
43rd Annual Meeting of the Division of Plasma Physics. Long Beach, CA, 29 Oct. - 2 Nov. 2001
Mattioli, M., Peacock, N., Summers, H., Denne, B., Hawkes, N.
In a multi-keV temperature deuterium plasma such as JET, CVI emission arises from collision processes which, in the absence of neutral deuterium beam heating, occur near the plasma boundary....
Mattioli, M., Peacock, N., Summers, H., Denne, B., Hawkes, N.
In a multi-keV temperature deuterium plasma such as JET, CVI emission arises from collision processes which, in the absence of neutral deuterium beam heating, occur near the plasma boundary....
BROADBAND (1-25Å) X-RAY CRYSTAL SPECTROSCOPY OF IMPURITY IONS IN THE DITE TOKAMAK (1988)
Barnsley, R., Evans, K., Hawkes, N., Peacock, N.
We present results from a Bragg rotor spectrometer and refer to wide-ranging studies of intrinsic and injected impurity ions in the DITE Tokamak.The instrument has absolute calibration for flux and...
BROADBAND (1-25Å) X-RAY CRYSTAL SPECTROSCOPY OF IMPURITY IONS IN THE DITE TOKAMAK (1988)
Barnsley, R., Evans, K., Hawkes, N., Peacock, N.
We present results from a Bragg rotor spectrometer and refer to wide-ranging studies of intrinsic and injected impurity ions in the DITE Tokamak.The instrument has absolute calibration for flux and...
Bulk Plasma Rotation in the Presence of Waves in the Ion Cyclotron Range Frequencies
Assas, S., Giroud, C., DeGrassie, J., Hellsten, T., ...
Integrated scenario in JET using real-time profile control
Joffrin, E., Crisanti, F., Felton, R., Litaudon, X., Mazon, D., Moreau, D., ...
New Results on Acceleration of Deuterons with ICRF Mode Conversion in the JET Tokamak
Castaldo, C., Cesario, R., Cardinali, A., Andrew, Y., Beaumont, P., Bertalot, L., ...
Power modulation experiments in JET ITB plasmas
Mantica, P., Imbeaux, F., Mantsinen, M., Van Eester, D., Marioni, A., Hawkes, N., ...
Non-hepatic hyperammonaemia: an important, potentially reversible cause of encephalopathy
Hawkes, N, Thomas, G, Jurewicz, A, Williams, O, Hillier, C, McQueen, I, ...
The clinical syndrome of encephalopathy is most often encountered in the context of decompensated liver disease and the diagnosis is usually clear cut. Non-hepatic causes of encephalopathy are rarer...