Innovative diagnostics for ITER physics addressed in JET

A. Murari, T. Edlington, A. Alfier, A. Alonso, Y. Andrew, G. Arnoux, M. Beurskens, P. Coad, K. Crombe, E. Gauthier, C. Giroud, C. Hidalgo, S. Hong, S. Kempenaars, V. Kiptily, T. Loarer, A. Meigs, R. Pasqualotto, Tuomas Tala, JET-EFDA Contributors

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

In recent years, JET diagnostic capability has been significantly improved to widen the range of physical phenomena that can be studied and thus contribute to the understanding of some ITER relevant issues. The most significant results reported in this paper refer to the plasma wall interactions, the interplay between core and edge physics and fast particles. A synergy between new infrared cameras, visible cameras and spectroscopy diagnostics has allowed investigating a series of new aspects of the plasma wall interactions. The power loads on the plasma facing components of JET main chambers have been assessed at steady state and during transient events like ELMs and disruptions. Evidence of filaments in the edge region of the plasma has been collected with a new fast visible camera and high resolution Thomson scattering. The physics of detached plasmas and some new aspects of dust formation have also been devoted particular attention. The influence of the edge plasma on the core has been investigated with upgraded active spectroscopy, providing new information on momentum transport and the effects of impurity injection on ELMs and ITBs and their interdependence. Given the fact that JET is the only machine with a plasma volume big enough to confine the alphas, a coherent programme of diagnostic developments for the energetic particles has been undertaken. With upgraded γ-ray spectroscopy and a new scintillator probe, it is now possible to study both the redistribution and the losses of the fast particles in various plasma conditions.
Original languageEnglish
Article number124043
JournalPlasma Physics and Controlled Fusion
Volume50
Issue number12
DOIs
Publication statusPublished - 2008
MoE publication typeA1 Journal article-refereed

Fingerprint

Physics
Plasmas
physics
Cameras
cameras
Beam plasma interactions
Spectroscopy
spectroscopy
Thomson scattering
energetic particles
Phosphors
scintillation counters
Dust
filaments
Momentum
rays
dust
chambers
interactions
Scattering

Cite this

Murari, A., Edlington, T., Alfier, A., Alonso, A., Andrew, Y., Arnoux, G., ... JET-EFDA Contributors (2008). Innovative diagnostics for ITER physics addressed in JET. Plasma Physics and Controlled Fusion, 50(12), [124043]. https://doi.org/10.1088/0741-3335/50/12/124043
Murari, A. ; Edlington, T. ; Alfier, A. ; Alonso, A. ; Andrew, Y. ; Arnoux, G. ; Beurskens, M. ; Coad, P. ; Crombe, K. ; Gauthier, E. ; Giroud, C. ; Hidalgo, C. ; Hong, S. ; Kempenaars, S. ; Kiptily, V. ; Loarer, T. ; Meigs, A. ; Pasqualotto, R. ; Tala, Tuomas ; JET-EFDA Contributors. / Innovative diagnostics for ITER physics addressed in JET. In: Plasma Physics and Controlled Fusion. 2008 ; Vol. 50, No. 12.
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abstract = "In recent years, JET diagnostic capability has been significantly improved to widen the range of physical phenomena that can be studied and thus contribute to the understanding of some ITER relevant issues. The most significant results reported in this paper refer to the plasma wall interactions, the interplay between core and edge physics and fast particles. A synergy between new infrared cameras, visible cameras and spectroscopy diagnostics has allowed investigating a series of new aspects of the plasma wall interactions. The power loads on the plasma facing components of JET main chambers have been assessed at steady state and during transient events like ELMs and disruptions. Evidence of filaments in the edge region of the plasma has been collected with a new fast visible camera and high resolution Thomson scattering. The physics of detached plasmas and some new aspects of dust formation have also been devoted particular attention. The influence of the edge plasma on the core has been investigated with upgraded active spectroscopy, providing new information on momentum transport and the effects of impurity injection on ELMs and ITBs and their interdependence. Given the fact that JET is the only machine with a plasma volume big enough to confine the alphas, a coherent programme of diagnostic developments for the energetic particles has been undertaken. With upgraded γ-ray spectroscopy and a new scintillator probe, it is now possible to study both the redistribution and the losses of the fast particles in various plasma conditions.",
author = "A. Murari and T. Edlington and A. Alfier and A. Alonso and Y. Andrew and G. Arnoux and M. Beurskens and P. Coad and K. Crombe and E. Gauthier and C. Giroud and C. Hidalgo and S. Hong and S. Kempenaars and V. Kiptily and T. Loarer and A. Meigs and R. Pasqualotto and Tuomas Tala and {JET-EFDA Contributors}",
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Murari, A, Edlington, T, Alfier, A, Alonso, A, Andrew, Y, Arnoux, G, Beurskens, M, Coad, P, Crombe, K, Gauthier, E, Giroud, C, Hidalgo, C, Hong, S, Kempenaars, S, Kiptily, V, Loarer, T, Meigs, A, Pasqualotto, R, Tala, T & JET-EFDA Contributors 2008, 'Innovative diagnostics for ITER physics addressed in JET', Plasma Physics and Controlled Fusion, vol. 50, no. 12, 124043. https://doi.org/10.1088/0741-3335/50/12/124043

Innovative diagnostics for ITER physics addressed in JET. / Murari, A.; Edlington, T.; Alfier, A.; Alonso, A.; Andrew, Y.; Arnoux, G.; Beurskens, M.; Coad, P.; Crombe, K.; Gauthier, E.; Giroud, C.; Hidalgo, C.; Hong, S.; Kempenaars, S.; Kiptily, V.; Loarer, T.; Meigs, A.; Pasqualotto, R.; Tala, Tuomas; JET-EFDA Contributors.

In: Plasma Physics and Controlled Fusion, Vol. 50, No. 12, 124043, 2008.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Innovative diagnostics for ITER physics addressed in JET

AU - Murari, A.

AU - Edlington, T.

AU - Alfier, A.

AU - Alonso, A.

AU - Andrew, Y.

AU - Arnoux, G.

AU - Beurskens, M.

AU - Coad, P.

AU - Crombe, K.

AU - Gauthier, E.

AU - Giroud, C.

AU - Hidalgo, C.

AU - Hong, S.

AU - Kempenaars, S.

AU - Kiptily, V.

AU - Loarer, T.

AU - Meigs, A.

AU - Pasqualotto, R.

AU - Tala, Tuomas

AU - JET-EFDA Contributors,

PY - 2008

Y1 - 2008

N2 - In recent years, JET diagnostic capability has been significantly improved to widen the range of physical phenomena that can be studied and thus contribute to the understanding of some ITER relevant issues. The most significant results reported in this paper refer to the plasma wall interactions, the interplay between core and edge physics and fast particles. A synergy between new infrared cameras, visible cameras and spectroscopy diagnostics has allowed investigating a series of new aspects of the plasma wall interactions. The power loads on the plasma facing components of JET main chambers have been assessed at steady state and during transient events like ELMs and disruptions. Evidence of filaments in the edge region of the plasma has been collected with a new fast visible camera and high resolution Thomson scattering. The physics of detached plasmas and some new aspects of dust formation have also been devoted particular attention. The influence of the edge plasma on the core has been investigated with upgraded active spectroscopy, providing new information on momentum transport and the effects of impurity injection on ELMs and ITBs and their interdependence. Given the fact that JET is the only machine with a plasma volume big enough to confine the alphas, a coherent programme of diagnostic developments for the energetic particles has been undertaken. With upgraded γ-ray spectroscopy and a new scintillator probe, it is now possible to study both the redistribution and the losses of the fast particles in various plasma conditions.

AB - In recent years, JET diagnostic capability has been significantly improved to widen the range of physical phenomena that can be studied and thus contribute to the understanding of some ITER relevant issues. The most significant results reported in this paper refer to the plasma wall interactions, the interplay between core and edge physics and fast particles. A synergy between new infrared cameras, visible cameras and spectroscopy diagnostics has allowed investigating a series of new aspects of the plasma wall interactions. The power loads on the plasma facing components of JET main chambers have been assessed at steady state and during transient events like ELMs and disruptions. Evidence of filaments in the edge region of the plasma has been collected with a new fast visible camera and high resolution Thomson scattering. The physics of detached plasmas and some new aspects of dust formation have also been devoted particular attention. The influence of the edge plasma on the core has been investigated with upgraded active spectroscopy, providing new information on momentum transport and the effects of impurity injection on ELMs and ITBs and their interdependence. Given the fact that JET is the only machine with a plasma volume big enough to confine the alphas, a coherent programme of diagnostic developments for the energetic particles has been undertaken. With upgraded γ-ray spectroscopy and a new scintillator probe, it is now possible to study both the redistribution and the losses of the fast particles in various plasma conditions.

U2 - 10.1088/0741-3335/50/12/124043

DO - 10.1088/0741-3335/50/12/124043

M3 - Article

VL - 50

JO - Plasma Physics and Controlled Fusion

JF - Plasma Physics and Controlled Fusion

SN - 0741-3335

IS - 12

M1 - 124043

ER -

Murari A, Edlington T, Alfier A, Alonso A, Andrew Y, Arnoux G et al. Innovative diagnostics for ITER physics addressed in JET. Plasma Physics and Controlled Fusion. 2008;50(12). 124043. https://doi.org/10.1088/0741-3335/50/12/124043