Study of type III ELMs in JET

R. Sartori; G. Saibene; L. D. Horton; M. Becoulet; R. Budny; D. Borba; A. Chankin; G. D. Conway; G. Cordey; D. McDonald; K. Guenther; M. G. Von Hellermann; Yu Igithkanov; A. Loarte; P. J. Lomas; O. Pogutse; J. Rapp

doi:10.1088/0741-3335/46/5/002

Study of type III ELMs in JET

R. Sartori, G. Saibene, L. D. Horton, M. Becoulet, R. Budny, D. Borba, A. Chankin, G. D. Conway, G. Cordey, D. McDonald, K. Guenther, M. G. Von Hellermann, Yu Igithkanov, A. Loarte, P. J. Lomas, O. Pogutse, J. Rapp

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Abstract

The study of the operational space of plasmas with Type III ELMs, in terms of local and global plasma parameters, in JET Mark II Gas Box (GB) divertor was described. The Type III ELMs were observed in standard ELMy H-modes and in plasmas with an internal transport barrier (ITB). In JET Type III ELMy H-modes, the energy confinement enhancement factor degraded with density and increased with triangularity over the entire collisionality range. It was observed that the classical pedestal temperature for the transition from Type III to Type I ELMs was increased with decreasing density at low density and was approximately constant at high density.

Original language	English
Pages (from-to)	723-750
Number of pages	28
Journal	Plasma Physics and Controlled Fusion
Volume	46
Issue number	5
DOIs	https://doi.org/10.1088/0741-3335/46/5/002
State	Published - May 2004
Externally published	Yes

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title = "Study of type III ELMs in JET",

abstract = "The study of the operational space of plasmas with Type III ELMs, in terms of local and global plasma parameters, in JET Mark II Gas Box (GB) divertor was described. The Type III ELMs were observed in standard ELMy H-modes and in plasmas with an internal transport barrier (ITB). In JET Type III ELMy H-modes, the energy confinement enhancement factor degraded with density and increased with triangularity over the entire collisionality range. It was observed that the classical pedestal temperature for the transition from Type III to Type I ELMs was increased with decreasing density at low density and was approximately constant at high density.",

author = "R. Sartori and G. Saibene and Horton, {L. D.} and M. Becoulet and R. Budny and D. Borba and A. Chankin and Conway, {G. D.} and G. Cordey and D. McDonald and K. Guenther and {Von Hellermann}, {M. G.} and Yu Igithkanov and A. Loarte and Lomas, {P. J.} and O. Pogutse and J. Rapp",

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doi = "10.1088/0741-3335/46/5/002",

language = "English",

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pages = "723--750",

journal = "Plasma Physics and Controlled Fusion",

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T1 - Study of type III ELMs in JET

AU - Sartori, R.

AU - Saibene, G.

AU - Horton, L. D.

AU - Becoulet, M.

AU - Budny, R.

AU - Borba, D.

AU - Chankin, A.

AU - Conway, G. D.

AU - Cordey, G.

AU - McDonald, D.

AU - Guenther, K.

AU - Von Hellermann, M. G.

AU - Igithkanov, Yu

AU - Loarte, A.

AU - Lomas, P. J.

AU - Pogutse, O.

AU - Rapp, J.

PY - 2004/5

Y1 - 2004/5

N2 - The study of the operational space of plasmas with Type III ELMs, in terms of local and global plasma parameters, in JET Mark II Gas Box (GB) divertor was described. The Type III ELMs were observed in standard ELMy H-modes and in plasmas with an internal transport barrier (ITB). In JET Type III ELMy H-modes, the energy confinement enhancement factor degraded with density and increased with triangularity over the entire collisionality range. It was observed that the classical pedestal temperature for the transition from Type III to Type I ELMs was increased with decreasing density at low density and was approximately constant at high density.

AB - The study of the operational space of plasmas with Type III ELMs, in terms of local and global plasma parameters, in JET Mark II Gas Box (GB) divertor was described. The Type III ELMs were observed in standard ELMy H-modes and in plasmas with an internal transport barrier (ITB). In JET Type III ELMy H-modes, the energy confinement enhancement factor degraded with density and increased with triangularity over the entire collisionality range. It was observed that the classical pedestal temperature for the transition from Type III to Type I ELMs was increased with decreasing density at low density and was approximately constant at high density.

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VL - 46

SP - 723

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JO - Plasma Physics and Controlled Fusion

JF - Plasma Physics and Controlled Fusion

IS - 5

ER -

Study of type III ELMs in JET

Abstract

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