Palm trees and islands – Current filaments in the edge of JET

Ch. Maszl; Volker Naulin; M. Brix; T.W. Versloot; R. Schrittwieser

doi:10.1016/j.jnucmat.2010.12.245

Palm trees and islands – Current filaments in the edge of JET

Ch. Maszl, Volker Naulin, M. Brix, T.W. Versloot, R. Schrittwieser

Research output: Contribution to journal › Conference article › Research › peer-review

Abstract

It is now well known that edge localized modes (ELMs) lead to the ejection of a number of filamentary structures into the scrape-off layer (SOL). ELMs thus generate structures with excess energy and density. Recent results show that ELM filaments also carry current. Furthermore it can be conjectured that ELM filaments leave corresponding holes behind. If such a hole is able to reach a resonant magnetic surface it may close on itself and thus increase its lifetime significantly, thereby becoming detectable. We presume that the Palm Tree Mode (PTM) is a signature of such an event. Understanding PTMs therefore enhances our knowledge of ELMs and edge physics and contributes to the verification of ELM models.

Original language	English
Journal	Journal of Nuclear Materials
Volume	415
Issue number	1
Pages (from-to)	S451-S454
ISSN	0022-3115
DOIs	https://doi.org/10.1016/j.jnucmat.2010.12.245
Publication status	Published - 2011
Event	19th International Conference on Plasma Surface Interaction in Controlled Fusion - San Diego, United States Duration: 24 May 2010 → 28 May 2010 https://fusion.gat.com/conferences/psi2010/

Conference

Conference	19th International Conference on Plasma Surface Interaction in Controlled Fusion
Country	United States
City	San Diego
Period	24/05/2010 → 28/05/2010
Internet address	https://fusion.gat.com/conferences/psi2010/

Keywords

Fusion energy

Access to Document

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title = "Palm trees and islands – Current filaments in the edge of JET",

abstract = "It is now well known that edge localized modes (ELMs) lead to the ejection of a number of filamentary structures into the scrape-off layer (SOL). ELMs thus generate structures with excess energy and density. Recent results show that ELM filaments also carry current. Furthermore it can be conjectured that ELM filaments leave corresponding holes behind. If such a hole is able to reach a resonant magnetic surface it may close on itself and thus increase its lifetime significantly, thereby becoming detectable. We presume that the Palm Tree Mode (PTM) is a signature of such an event. Understanding PTMs therefore enhances our knowledge of ELMs and edge physics and contributes to the verification of ELM models.",

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author = "Ch. Maszl and Volker Naulin and M. Brix and T.W. Versloot and R. Schrittwieser",

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T1 - Palm trees and islands – Current filaments in the edge of JET

AU - Maszl, Ch.

AU - Naulin, Volker

AU - Brix, M.

AU - Versloot, T.W.

AU - Schrittwieser, R.

PY - 2011

Y1 - 2011

N2 - It is now well known that edge localized modes (ELMs) lead to the ejection of a number of filamentary structures into the scrape-off layer (SOL). ELMs thus generate structures with excess energy and density. Recent results show that ELM filaments also carry current. Furthermore it can be conjectured that ELM filaments leave corresponding holes behind. If such a hole is able to reach a resonant magnetic surface it may close on itself and thus increase its lifetime significantly, thereby becoming detectable. We presume that the Palm Tree Mode (PTM) is a signature of such an event. Understanding PTMs therefore enhances our knowledge of ELMs and edge physics and contributes to the verification of ELM models.

AB - It is now well known that edge localized modes (ELMs) lead to the ejection of a number of filamentary structures into the scrape-off layer (SOL). ELMs thus generate structures with excess energy and density. Recent results show that ELM filaments also carry current. Furthermore it can be conjectured that ELM filaments leave corresponding holes behind. If such a hole is able to reach a resonant magnetic surface it may close on itself and thus increase its lifetime significantly, thereby becoming detectable. We presume that the Palm Tree Mode (PTM) is a signature of such an event. Understanding PTMs therefore enhances our knowledge of ELMs and edge physics and contributes to the verification of ELM models.

KW - Fusion energy

KW - fusionsenergiforskning

U2 - 10.1016/j.jnucmat.2010.12.245

DO - 10.1016/j.jnucmat.2010.12.245

M3 - Conference article

VL - 415

SP - S451-S454

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

SN - 0022-3115

IS - 1

T2 - 19th International Conference on Plasma Surface Interaction in Controlled Fusion

Y2 - 24 May 2010 through 28 May 2010

ER -