Details

Autor(en) / Beteiligte

• Xu, M.
• Duan, X.R.
• Liu, Yi
• Song, X.M.
• Liu, D.Q.
• Wang, Y.Q.
• Lu, B.
• Yang, Q.W.
• Zheng, G.Y.
• Ding, X.T.
• Dong, J.Q.
• Hao, G.Z.
• Zhong, W.L.
• Shi, Z.B.
• Yan, L.W.
• Zou, X.L.
• Liu, Y.Q.
• Chen, W.
• Xiao, G.L.
• Zhang, Y.P.
• Jiang, M.
• Hou, Y.M.
• Cheng, J.
• Liang, A.S.
• Bai, X.Y.
• Cao, J.Y.
• Cao, Z.
• Chen, H.T.
• Cui, C.H.
• Cui, Z.Y.
• Delpech, L.
• Diamond, P.H.
• Ekedahl, A.
• Feng, B.B.
• Giruzzi, G.
• Gong, S.B.
• He, H.M.
• Hoang, T.
• Huang, M.
• Huang, Y.
• Ida, K.
• Inagaki, S.
• Isobe, M.
• Itoh, K.
• Itoh, S.-I.
• Ji, X.Q.
• Ke, R.
• Kobayashi, M.
• Lei, G.J.
• Li, B.
• Li, G.S.
• Li, H.J.
• Li, J.Q.
• Li, Q.
• Li, Qing
• Li, X.D.
• Li, Y.G.
• Li, Yongge
• Mao, W.C.
• Mazon, D.
• Mckee, G.R.
• Morita, S.
• Nie, L.
• Peng, J.F.
• Peysson, Y.
• Rao, J.
• Ren, Y.
• Tynan, G.R.
• Wang, H.X.
• Wang, Q.M.
• Wei, H.L.
• Xia, F.
• Xiao, X.P.
• Xuan, W.M.
• Yan, Z.
• Yao, K.
• Yu, L.M.
• Yu, Y.
• Yu, D.L.
• Yuan, B.D.
• Yuan, B.S.
• Zhang, J.H.
• Zhou, Y.
• Liu, Yong

Titel

Overview of HL-2A recent experiments

Ist Teil von

• Nuclear fusion, 2019-11, Vol.59 (11), p.112017

Ort / Verlag

IOP Publishing

Erscheinungsjahr

2019

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The mission of HL-2A is to explore the key physical topics relevant to ITER and to the advanced tokamak operation (e.g. the operation of future HL-2M), such as the access of H-mode, energetic particle physics, edge-localized mode (ELM) mitigation/suppression and disruption mitigation. Since the 2016 Fusion Energy Conference, the HL-2A team has focused on the investigations on the following areas: (i) pedestal dynamics and L-H transition, (ii) techniques of ELM control, (iii) turbulence and transport, (iv) energetic particle physics. The HL-2A results demonstrated that the increase of mean shear flow plays a key role in triggering L-I and I-H transitions, while the change of flow is mainly induced by the ion pressure gradient. Both mitigation and suppression of ELMs were realized by laser blow-off seeded impurity (Al, Fe, W). The 30% Ne mixture supersonic molecular beam injection seeding also robustly induced ELM mitigation. The ELMs were mitigated by low-hybrid current drive. The stabilization of m/n  =  1/1 ion fishbone activities by electron cyclotron resonance heating was found on the HL-2A. A new m/n  =  2/1 ion fishbone activity was observed recently, and the modelling indicated that passing fast ions dominantly contribute to the driving of 2/1 fishbone. The non-linear coupling between the toroidal Alfven eigenmode and tearing mode (TM) led to the generation of a high frequency mode with the toroidal mode number n  =  0. The turbulence was modulated by TM when the island width exceeds a threshold and the modulation is localized merely in the inner area of the islands. Meanwhile, turbulence radial spread took place across the island region.