Details

Autor(en) / Beteiligte

• Liang, Y
• Koslowski, H R
• Thomas, P R
• Nardon, E
• Alper, B
• Andrew, P
• Andrew, Y
• Arnoux, G
• Baranov, Y
• Bécoulet, M
• Beurskens, M
• Biewer, T
• Bigi, M
• Crombe, K
• De La Luna, E
• de Vries, P
• Fundamenski, W
• Gerasimov, S
• Giroud, C
• Gryaznevich, M P
• Hawkes, N
• Hotchin, S
• Howell, D
• Jachmich, S
• Kiptily, V
• Moreira, L
• Parail, V
• Pinches, S D
• Rachlew, E
• Zimmermann, O

Titel

Active control of type-I edge-localized modes with n=1 perturbation fields in the JET tokamak

Ist Teil von

• Physical review letters, 2007-06, Vol.98 (26), p.265004-265004, Article 265004

Ort / Verlag

United States

Erscheinungsjahr

2007

Link zum Volltext

Quelle

American Physical Society Journals

Beschreibungen/Notizen

• 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. During the application of the n=1 field the ELM frequency increased by a factor of 4 and the amplitude of the D(alpha) signal decreased. The energy loss per ELM normalized to the total stored energy, DeltaW/W, dropped to values below 2%. Transport analyses shows no or only a moderate (up to 20%) degradation of energy confinement time during the ELM mitigation phase.