scholarly journals Effects of electron cyclotron current drive on magnetic islands in tokamak plasmas

2017 ◽  
Vol 24 (8) ◽  
pp. 082508 ◽  
Keyword(s):  
Electron Cyclotron ◽  
Current Drive ◽  
Tokamak Plasmas ◽  
Magnetic Islands

Magnetic island suppression by electron cyclotron current drive as converse of a forced reconnection problem

2018 ◽  
Vol 84 (3) ◽  
Author(s):  
D. Grasso ◽  
D. Borgogno ◽  
L. Comisso ◽  
E. Lazzaro
Keyword(s):  
Robust Control ◽  
Control Strategy ◽  
Electron Cyclotron ◽  
Current Drive ◽  
Magnetic Islands ◽  
Tearing Mode ◽  
Magnetic Island ◽  
Technical Approach ◽  
Physical Conditions ◽  
Secondary Instabilities

This paper addresses one aspect of the problem of the suppression of tearing mode magnetic islands by electron cyclotron current drive (ECCD) injection, formulating the problem as the converse of a forced reconnection problem. New physical conditions are discussed which should be considered in the technical approach towards a robust control strategy. Limits on the ECCD deposition are determined to avoid driving the system into regimes where secondary instabilities develop. Numerical simulations confirming the theory are also presented.

Current drive with combined electron cyclotron wave and high harmonic fast wave in tokamak plasmas

2016 ◽  
Vol 23 (12) ◽  
pp. 122504 ◽  
Author(s):  
J. C. Li ◽  
X. Y. Gong ◽  
J. Q. Dong ◽  
J. Wang ◽  
N. Zhang ◽  
...  
Keyword(s):  
High Harmonic ◽  
Electron Cyclotron ◽  
Current Drive ◽  
Fast Wave ◽  
Tokamak Plasmas ◽  
Electron Cyclotron Wave

scholarly journals The effects of electron cyclotron heating and current drive on toroidal Alfvén eigenmodes in tokamak plasmas

2017 ◽  
Vol 60 (1) ◽  
pp. 014026 ◽  
Author(s):  
S E Sharapov ◽  
M Garcia-Munoz ◽  
M A Van Zeeland ◽  
B Bobkov ◽  
I G J Classen ◽  
...  
Keyword(s):  
Electron Cyclotron ◽  
Current Drive ◽  
Tokamak Plasmas ◽  
Electron Cyclotron Heating ◽  
Alfven Eigenmodes

Control of multi-helicity neo-classical tearing modes by electron cyclotron current drive in tokamak plasmas

2020 ◽  
Vol 60 (10) ◽  
pp. 106009
Author(s):  
Tong Liu ◽  
Jialei Wang ◽  
Lai Wei ◽  
Zheng-Xiong Wang
Keyword(s):  
Electron Cyclotron ◽  
Current Drive ◽  
Tokamak Plasmas ◽  
Tearing Modes

scholarly journals Open problems of magnetic island control by electron cyclotron current drive

2016 ◽  
Vol 82 (6) ◽  
Author(s):  
D. Grasso ◽  
E. Lazzaro ◽  
D. Borgogno ◽  
L. Comisso
Keyword(s):  
Electron Cyclotron ◽  
Current Drive ◽  
Small Scale ◽  
Magnetic Islands ◽  
Magnetic Island ◽  
Open Problems ◽  
Scale Structures ◽  
Key Aspects ◽  
Small Scale Structures ◽  
Open Issues

This paper reviews key aspects of the problem of magnetic islands control by electron cyclotron current drive in fusion devices. On the basis of the ordering of the basic spatial and time scales of the magnetic reconnection physics, we present the established results, highlighting some of the open issues posed by the small-scale structures that typically accompany the nonlinear evolution of the magnetic islands and constrain the effect of the control action.

Cross-effect on electron cyclotron and lower hybrid current drive in tokamak plasmas

1987 ◽  
Vol 27 (4) ◽  
pp. 579-587 ◽  
Author(s):  
I. Fidone ◽  
G. Giruzzi ◽  
V. Krivenski ◽  
E. Mazzucato ◽  
L.F. Ziebell
Keyword(s):  
Electron Cyclotron ◽  
Current Drive ◽  
Lower Hybrid ◽  
Tokamak Plasmas ◽  
Cross Effect ◽  
Lower Hybrid Current Drive
Sign in / Sign up

Export Citation Format

Share Document