The role of edge current density on kink mode stability and its implication for magnetohydrodynamic activity associated with edge localized modes

1992 ◽  
Vol 4 (7) ◽  
pp. 1901-1908 ◽  
Author(s):  
Janardhan Manickam
Keyword(s):  
Current Density ◽  
Localized Modes ◽  
Kink Mode ◽  
Edge Current ◽  
Mode Stability ◽  
Edge Localized Modes

scholarly journals The effect of the edge current density on confinement and kink mode stability in H-mode and VH-mode discharges

1994 ◽  
Author(s):  
J.R. Ferron ◽  
L.L. Lao ◽  
T.H. Osborne ◽  
E.J. Strait ◽  
T.S. Taylor ◽  
...  
Keyword(s):  
Current Density ◽  
Kink Mode ◽  
Edge Current ◽  
Mode Stability

Shrinking of core neoclassical tearing mode magnetic islands due to edge localized modes and the role of ion-scale turbulence in island recovery in DIII-D

2017 ◽  
Vol 24 (6) ◽  
pp. 062503 ◽  
Author(s):  
L. Bardóczi ◽  
T. L. Rhodes ◽  
T. A. Carter ◽  
R. J. La Haye ◽  
A. Bañón Navarro ◽  
...  
Keyword(s):  
Magnetic Islands ◽  
Tearing Mode ◽  
Localized Modes ◽  
Edge Localized Modes ◽  
Scale Turbulence ◽  
Neoclassical Tearing Mode

The model of synchronization between internal reconnections and edge-localized modes

2021 ◽  
Author(s):  
Viktor Bulanin ◽  
Gleb Kurskiev ◽  
Vladimir Solokha ◽  
Alexander Yashin ◽  
Nikita Sergeevich Zhiltsov
Keyword(s):  
Stability Analysis ◽  
Numerical Analysis ◽  
Experimental Evidence ◽  
Penetration Depth ◽  
Current Density ◽  
Induced Current ◽  
Localized Modes ◽  
Excess Current ◽  
Edge Localized Modes ◽  
Magnetic Equilibrium

Abstract A new model for interaction between the internal reconnections caused by sawtooth and the edge-localized modes (ELM) was presented. The experimental evidence of the coupling between sawtooth crash and ELM events were observed in the Globus-M and Globus-M2 tokamaks. The numerical analysis of magnetic equilibrium showed that internal reconnections can induce the excess current density near the separatrix during the several hundreds of μs. The excess current destabilizes the peeling-ballooning instability. The peeling-ballooning stability analysis showed that the penetration depth of the induced current should be in the range of ψnorm = 0.8 - 0.95 to trigger the instability.

scholarly journals The role of temperature fluctuations in the dynamics of type-I and type-II edge localized modes at ASDEX Upgrade

2013 ◽  
Vol 53 (7) ◽  
pp. 073005 ◽  
Author(s):  
I.G.J. Classen ◽  
J.E. Boom ◽  
A.V. Bogomolov ◽  
E. Wolfrum ◽  
M. Maraschek ◽  
...  
Keyword(s):  
Temperature Fluctuations ◽  
Type I ◽  
Type Ii ◽  
Localized Modes ◽  
Edge Localized Modes

Analytical electron microscopy of grain boundaries in Al-Cu metallizations

1992 ◽  
Vol 50 (2) ◽  
pp. 1684-1685
Author(s):  
J. R. Michael ◽  
A. D. Romig ◽  
D. R. Frear
Keyword(s):  
Electron Microscopy ◽  
Integrated Circuits ◽  
Failure Mode ◽  
Current Density ◽  
Thermal History ◽  
Analytical Electron Microscopy ◽  
Cu Metallization ◽  
Analytical Electron ◽  
Interconnect Lines

Al with additions of Cu is commonly used as the conductor metallizations for integrated circuits, the Cu being added since it improves resistance to electromigration failure. As linewidths decrease to submicrometer dimensions, the current density carried by the interconnect increases dramatically and the probability of electromigration failure increases. To increase the robustness of the interconnect lines to this failure mode, an understanding of the mechanism by which Cu improves resistance to electromigration is needed. A number of theories have been proposed to account for role of Cu on electromigration behavior and many of the theories are dependent of the elemental Cu distribution in the interconnect line. However, there is an incomplete understanding of the distribution of Cu within the Al interconnect as a function of thermal history. In order to understand the role of Cu in reducing electromigration failures better, it is important to characterize the Cu distribution within the microstructure of the Al-Cu metallization.

Mechanical Performances of ITER In-Vessel Coil’s Conductor

2013 ◽  
Author(s):  
Huan Jin ◽  
Wu Yu ◽  
Feng Long ◽  
Min Yu ◽  
Qiyang Han ◽  
...  
Keyword(s):  
Stainless Steel ◽  
High Temperature ◽  
Strong Coupling ◽  
Thermal Fatigue ◽  
Work Conditions ◽  
Nuclear Radiation ◽  
Localized Modes ◽  
Edge Localized Modes ◽  
Point Bend ◽  
Mechanical Performances

The design and R&D for ITER In-Vessel Coils (IVCs) is being deployed. The concerned issue of “Edge Localized Modes” (ELMs) and “Vertical Stabilization” (VS) of the ITER plasma can be addressed by the implemented IVCs. The ELM and VS coils will be installed in the vessel just behind the blanket shield modules to reach the requirement of keeping strong coupling with the plasma. The 59mm Stainless Steel Jacketed Mineral Insulated Conductor (SSMIC) using MgO as the insulation is being designed for the IVCs to resist the special challenges, including the nuclear radiation, high temperature, electromagnetic and thermal fatigue. It is necessary to take the mechanical performances of the SSMIC and the feasibility of fabrication techniques into consideration of the R&D program. The mechanical performances of the SSMIC close to the actual work conditions, including the three point bend modulus, three point bend cyclical performance and the cyclical performance with a U-bend sample of the SSMIC prototypes have been investigated and the results are presented in this paper.

scholarly journals On the onset of type I edge localized modes

2009 ◽  
Vol 49 (4) ◽  
pp. 049801
Author(s):  
G.Y Antar ◽  
S.I Krasheninnikov ◽  
P.B Snyder ◽  
R.A Moyer ◽  
R Pugno ◽  
...  
Keyword(s):  
Type I ◽  
Localized Modes ◽  
Edge Localized Modes

scholarly journals Comparison of small edge-localized modes on MAST and ASDEX Upgrade

2011 ◽  
Vol 53 (9) ◽  
pp. 095008 ◽  
Author(s):  
A Kirk ◽  
H W Muller ◽  
E Wolfrum ◽  
H Meyer ◽  
A Herrmann ◽  
...  
Keyword(s):  
Localized Modes ◽  
Edge Localized Modes
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