Results 21 to 30 of about 1,922,886 (290)

Access to stable, high pressure tokamak pedestals using local electron cyclotron current drive

Nuclear Fusion, 2023
Experiments on the DIII-D tokamak demonstrate that edge localized mode (ELM) stability can be manipulated using localized electron cyclotron current drive (ECCD) in conjunction with resonant magnetic perturbations (RMPs).
N.C. Logan, B.C. Lyons, M. Knolker, Q. Hu, T. Cote, P. Snyder   +5 more
doaj   +1 more source

Impact of resonant magnetic perturbations on the L-H transition on MAST [PDF]

Plasma Physics and Controlled Fusion, 2015
23 pages, 7 figures. This is an author-created, un-copyedited version of an article submitted for publication in Plasma Physics and Controlled Fusion. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from ...
Scannell, R., Kirk, A., Carr, M., Hawke, J., Henderson, S. S., O'Gorman, T., Patel, A., Shaw, A., Thornton, A., Team, the MAST   +9 more
openaire   +4 more sources

Effect of resonant magnetic perturbations including toroidal sidebands on magnetic footprints and fast ion losses in HL-2M

Nuclear Fusion, 2023
Externally applied resonant magnetic perturbations (RMPs), generated by magnetic coils located outside the plasma (referred to as RMP coils), provide an effective way to control the edge localized mode (ELM) in tokamak devices. Due to the discrete nature
G.Z. Hao, G.Q. Dong, Y.Q. Liu, Y.H. Xu, Y.F. Zhao, S. Wang, H.D. He, M. Xue, Z.J. Li, J.X. Li, C.Y. Li, L. Wang, J.Q. Xu, W. Chen, L.J. Cai, W.L. Zhong, M. Xu, X.R. Duan   +17 more
doaj   +1 more source

Mechanism of Edge Localized Mode Mitigation by Resonant Magnetic Perturbations [PDF]

Physical Review Letters, 2014
A possible mechanism of edge localized modes (ELMs) mitigation by resonant magnetic perturbations (RMPs) is proposed based on the results of nonlinear resistive magnetohydrodynamic modeling using the jorek code, realistic JET-like plasma parameters and an RMP spectrum of JET error-field correction coils (EFCC) with a main toroidal number n=2 were used ...
Becoulet, Marina, Orain, F., Huijsmans, G. T. A., Pamela, S., Cahyna, P., Hoelzl, M., Garbet, X., Franck, E., Sonnendrücker, E., Dif-Pradalier, Guilhem, Passeron, C., Latu, G., Morales, J., Nardon, E., Fil, Alexandre, Nkonga, B., Ratnani, A., Grandgirard, V.   +17 more
openaire   +4 more sources

Influence of triangularity on the plasma response to resonant magnetic perturbations

Nuclear Fusion, 2022
Abstract The effect of the axisymmetric plasma shape on the non-axisymmetric plasma response to resonant magnetic perturbations is investigated in experiment and modeling for the DIII-D, EAST and ASDEX Upgrade tokamaks. Systematically modeling the effect of the triangularity, whilst keeping other equilibrium quantities largely unchanged,
S. Gu, C. Paz-Soldan, Y.Q. Liu, Y. Sun, B.C. Lyons, D.A. Ryan, D. Weisberg, N. Leuthold, M. Willensdorfer, W. Suttrop, J.-K. Park, N.C. Logan, M.W. Shafer, H.H. Wang, Q. Ma, A. Kirk, B. Tal, M. Griener   +17 more
openaire   +2 more sources

Effect of aspect ratio on plasma response to resonant magnetic perturbations in tokamak devices

AIP Advances, 2023
A systematic numerical study is carried out, computing and comparing the plasma response to the resonant magnetic perturbation (RMP) field, applied for controlling edge localized modes (ELMs), in a series of tokamak plasmas with varying aspect ratio and ...
J. W. Li, L. Li, Y. Q. Liu, Y. F. Wang, P. Qin, Q. B. Luan, X. J. Huang, L. J. Guo, F. C. Zhong   +8 more
doaj   +1 more source

Toroidal modeling of 3D perturbations generated by current filaments in scrape-off layer in tokamak with biased divertor targets

Nuclear Fusion, 2022
The divertor biasing technique offers a promising alternative to control the edge localized mode (ELM) as well as the divertor heat load in tokamaks, as compared to the resonant magnetic perturbation (RMP) generated by magnetic coils.
G.Z. Hao, G.Q. Dong, B.T. Cui, Y.Q. Liu, Y.H. Xu, T.F. Sun, X.Q. Ji, S. Wang, Y.F. Zhao, J.Q. Xu, X. Bai, N. Zhang, C.Y. Li, L. Wang, H.D. He, J.M. Gao, Yi Liu, W.L. Zhong, M. Xu, X.R. Duan   +19 more
doaj   +1 more source

Emerging experimental and computational methods for studying redox‐regulated structural transitions

FEBS Letters, EarlyView.
Redox reactions can reshape proteins and alter how they behave in cells, with important consequences for health and disease. This review explores emerging experimental and computational approaches for discovering these redox‐sensitive protein switches, revealing their structural effects, and predicting their behavior, opening new opportunities to ...
Tasneem Rass, Dana Reichmann, Gábor Erdős   +2 more
wiley   +1 more source

Taming harmful bursts and heat flux in high-confinement tokamak plasmas

Nature Communications
A major challenge in tokamak fusion research is first-wall erosion caused by steady heat loads and sudden energy bursts known as edge-localized modes. Divertor detachment reduces steady-state heat flux, while resonant magnetic perturbations can suppress ...
Q. M. Hu, H. Q. Wang, M. Navarro, H. H. Wang, D. Eldon, S. Gu, X. X. Ma, H. Frerichs, F. Scotti, L. Wang, R. S. Wilcox, T. M. Wilks, A. Bortolon, L. Ceelen, F. Effenberg, X. Z. Gong, M. N. Jia, S. K. Kim, C. J. Lasnier, A. W. Leonard, K. D. Li, N. C. Logan, Q. Ma, R. Maingi, L. Y. Meng, A. L. Moser, T. H. Osborne, C. Paz-Soldan, M. W. Shafer, Y. W. Sun, S. M. Yang, C. Ye   +31 more
doaj   +1 more source

Synergistic perspectives—How single‐molecule biophysics complement biochemical understanding

FEBS Letters, EarlyView.
In this review, we discuss how ensemble biochemistry and single‐molecule approaches are complementary, outline commonly used single‐molecule techniques, and illustrate their relevance through two representative case studies: chromatin organization by SMC complexes and pathway choice during DNA double‐strand break repair.
Sara De Bragança, Eline L. Jansen, Jorine M. Eeftens   +2 more
wiley   +1 more source