scholarly journals THE EFFECT OF ION CYCLOTRON RESONANCE HEATING ON LOWER HYBRID CURRENT DRIVE IN TOKAMAK PLASMA

1992 ◽  
Vol 41 (4) ◽  
pp. 587
Author(s):  
SHEN LIN-FANG ◽  
YU GUO-YANG
Keyword(s):  
Cyclotron Resonance ◽  
Current Drive ◽  
Tokamak Plasma ◽  
Lower Hybrid ◽  
Ion Cyclotron Resonance ◽  
Ion Cyclotron ◽  
Lower Hybrid Current Drive

scholarly journals Analytical edge power loss at the lower hybrid resonance: ANTITER IV validation and application to ion cyclotron resonance heating systems

2021 ◽  
Vol 87 (6) ◽  
Author(s):  
V. Maquet ◽  
A. Druart ◽  
A. Messiaen
Keyword(s):  
Cyclotron Resonance ◽  
Power Loss ◽  
Cold Plasma ◽  
Tokamak Plasma ◽  
Lower Hybrid ◽  
Ion Cyclotron Resonance ◽  
Slab Geometry ◽  
Heating Systems ◽  
Ion Cyclotron ◽  
Large Machine

In the ion cyclotron range of frequency (ICRF), the presence of a lower hybrid (LH) resonance can appear in the edge of a tokamak plasma and lead to deleterious edge power depositions. An analytic formula for these losses is derived in the cold plasma approximation and for a slab geometry using an asymptotic approach and an analytical continuation near the LH resonance. The way to minimize these losses in a large machine like ITER is discussed. An internal verification between the power loss computed with the semi-analytical code ANTITER IV for ion cyclotron resonance heating (ICRH) and the analytic result is performed. This allows us to check the precision of the numerical integration of the singular set of cold plasma wave differential equations. The set of cold plasma equations used is general and can be applied in other parameters domain.

scholarly journals Power requirements for electron cyclotron current drive and ion cyclotron resonance heating for sawtooth control in ITER

2013 ◽  
Vol 53 (6) ◽  
pp. 066001 ◽  
Author(s):  
I.T. Chapman ◽  
J.P. Graves ◽  
O. Sauter ◽  
C. Zucca ◽  
O. Asunta ◽  
...  
Keyword(s):  
Cyclotron Resonance ◽  
Electron Cyclotron ◽  
Current Drive ◽  
Ion Cyclotron Resonance ◽  
Ion Cyclotron

scholarly journals Lower hybrid current drive and ion cyclotron range of frequencies heating experiments in H-mode plasmas in Experimental Advanced Superconducting Tokomak

2014 ◽  
Vol 21 (6) ◽  
pp. 061501 ◽  
Author(s):  
X. J. Zhang ◽  
B. N. Wan ◽  
Y. P. Zhao ◽  
B. J. Ding ◽  
G. S. Xu ◽  
...  
Keyword(s):  
Current Drive ◽  
Lower Hybrid ◽  
Ion Cyclotron ◽  
Lower Hybrid Current Drive

Poloidal field effects on fundamental minority ion cyclotron resonance heating in a tokamak plasma

2000 ◽  
Vol 7 (5) ◽  
pp. 1467-1478 ◽  
Author(s):  
S. C. Jun ◽  
Kaya Imre ◽  
D. C. Stevens ◽  
Harold Weitzner ◽  
C. S. Chang
Keyword(s):  
Cyclotron Resonance ◽  
Tokamak Plasma ◽  
Ion Cyclotron Resonance ◽  
Poloidal Field ◽  
Field Effects ◽  
Ion Cyclotron

scholarly journals Theoretical studies of lower hybrid current drive and ion-cyclotron heating in tokamaks

1985 ◽  
Author(s):  
F.W. Perkins ◽  
E.J. Valeo ◽  
D.C. Eder ◽  
D.Q. Hwang ◽  
F. Jobes ◽  
...  
Keyword(s):  
Current Drive ◽  
Lower Hybrid ◽  
Theoretical Studies ◽  
Ion Cyclotron ◽  
Lower Hybrid Current Drive

Ion cyclotron resonance heating of a tokamak plasma using an antenna without a Faraday shield

1991 ◽  
Vol 31 (9) ◽  
pp. 1770-1774 ◽  
Author(s):  
R. Van Nieuwenhove ◽  
R. Koch ◽  
G. Van Oost ◽  
T. Delvigne ◽  
F. Durodie ◽  
...  
Keyword(s):  
Cyclotron Resonance ◽  
Tokamak Plasma ◽  
Ion Cyclotron Resonance ◽  
Ion Cyclotron ◽  
Faraday Shield

Second-harmonic ion cyclotron resonance heating scenarios of Aditya tokamak plasma

Pramana ◽  
2015 ◽  
Vol 85 (4) ◽  
pp. 713-721 ◽  
Author(s):  
ASIM KUMAR CHATTOPADHYAY ◽  
◽  
S V KULKARNI ◽  
R SRINIVASAN
Keyword(s):  
Cyclotron Resonance ◽  
Second Harmonic ◽  
Tokamak Plasma ◽  
Ion Cyclotron Resonance ◽  
Ion Cyclotron

An asymptotic analysis of the radiation pattern of ion cyclotron resonance heating antennas

1984 ◽  
Vol 32 (2) ◽  
pp. 291-308 ◽  
Author(s):  
R. Koch ◽  
V. P. Bhatnagar ◽  
R. R. Weynants
Keyword(s):  
Asymptotic Analysis ◽  
Radiation Pattern ◽  
Cyclotron Resonance ◽  
Current Drive ◽  
Phase Method ◽  
Stationary Phase Method ◽  
Ion Cyclotron Resonance ◽  
Power Flux ◽  
Ion Cyclotron ◽  
Basic Characteristics

Using the stationary phase method, a simple asymptotic analysis of a two-dimensional model of the coupling of the cold-plasma magnetosonic wave excited by an ion-cyclotron resonance heating (ICRH) antenna is presented. Such an analysis allows quick evaluation of the basic characteristics of the ICRH antenna radiation pattern and shows how the power spectrum radiated by the antenna and plasma dispersion properties combine to produce the power flux distribution observed in the far-field region. The results of the present simplified analysis are found to be in reasonably good agreement with more sophisticated coupling codes. This development thus serves as a simple analytic tool for quick investigation of the most fundamental features of coupling for antenna design studies. With a view to spectrum shaping for improved heating and tokamak RF current drive, the case of a phased antenna array is also analysed.

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