Y. Andrew

Publication List Details

Period

2000 - 2009

Number

84

Co-Authors

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...

Influence of rotational shear on triggering and sustainment of internal transport barriers on JET (2009)

Crombé, K., Andrew, Y., Blanco, E., Tala,Tuomas Et Al.

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

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...

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....

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...

Effect of poloidal rotation on the predictions for the ITB dynamics and transport in JET plasmas (2005)

Tala, Tuomas, Andrew, Y., Corrigan, G., Crombe, K., Heading, D., Parail, V., ...

32nd EPS Conference on Controlled Fusion and Plasma Physics. Tarragona, ES, 27 June - 1 July 2005. Europhysics Conference Abstracts. Vol. 29C, P-4.044

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...

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...

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...

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...

The formation and evolution of extreme shear reversal in JET and its influence on local thermal transport (2002)

Hawkes, N. C., Andrew, Y., Challis, C. D., DeAngelis, R., Drozdov, V., Hobirk, J., ...

In JET discharges where lower hybrid heating and current drive (LHCD) is applied early during the current ramp, a region of the plasma with zero current density is formed near the axis. At the...

Improved performance of ELMy H-modes at high density by plasma shaping in JET (2002)

Saibene, G., Sartori, R., Loarte, A., Campbell, D. J., Lomas, P. J., Parail, V., ...

We present the results of experiments in JET to study the effect of plasma shape on high density ELMy H-modes, with geometry of the magnetic boundary similar to that envisaged,for the standard,Q = 10...

Edge operational space for high density/high confinement ELMY H-modes in JET (2002)

Sartori, R., Saibene, G., Becoulet, M., Lomas, P. J., Loarte, A., Campbell, D. J., ...

This paper discusses how the proximity to the L-H threshold affects the confinement of ELMy H-modes at high density. The largest reduction in confinement at high density is observed at the transition...

High density, high performance high-confinement-mode plasmas in the Joint European Torus (JET) (2002)

Suttrop, W., Ongena, J., Becoulet, M., Cordey, J. G., Dumortier, P., Huysmans, G. T. A., ...

Recent experiments at the Joint European Torus [Rebut , Fusion Eng. Des. 22, 7 (1993)] aim to improve confinement quality in high-confinement-mode (H-mode) plasmas at high densities. Energy...

Improved performance of ELMy H-modes at high density by plasma shaping in JET (2002)

Saibene, G., Sartori, R., Loarte, A., Campbell, I. D., Lomas, P. J., Parail, V., ...

This version is available at the following Publisher URL: http://dx.doi.org/10.1088/0741-3335/44/9/301

High density, high performance high-confinement-mode plasmas in the Joint European Torus (JET) (2002)

Suttrop, W., Ongena, J., Becoulet, M., Cordey, J. G., Dumortier, P., Huysmans, G. T. A., ...

Recent experiments at the Joint European Torus [Rebut , Fusion Eng. Des. 22, 7 (1993)] aim to improve confinement quality in high-confinement-mode (H-mode) plasmas at high densities. Energy...

Absolute densities of long lived species in an ionized physical vapor deposition copper-argon plasma (2000)

Andrew, Y., Abraham, I., Booske, John H., Lu, Z.C., Wendt, Amy E.

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