Study of LHCD in HL-2A Non-Circular Cross Section Tokamak

Jiao, Yue; Dong, J. Q.; Gao, Qian; Wang, Aike; Liu, Yong

doi:10.1088/1009-0630/9/1/05

Plasma Sci. Technol.

2007

DOI: 10.1088/1009-0630/9/1/05

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Study of LHCD in HL-2A Non-Circular Cross Section Tokamak

Yue Jiao

J. Q. Dong²,

Qian Gao³

et al.

Abstract: Using the Grad-Shafranov equation, the magnetic configuration is obtained. With this configuration, Brambilla's ray tracing theory has been used to study the propagation of LH waves. The qualitative study of the feasibility of LHCD in the non-circular cross section tokamak HL-2A is made. The optimized current drive method is discussed.

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2012

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Optimization of Lower Hybrid Current Drive Efficiency for EAST Plasma with Non-Circular Cross Section and Finite Aspect-Ratio

Shi¹,

Hu²,

Gao³

2012

Plasma Sci. Technol.

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The two-dimensional equilibrium with flexible boundaries is solved via using a MAT-LAB Equilibrium Code (MEC), which has applied the finite element method to handle the changeable plasma shape and employed the trust-region dogleg method to solve the nonlinear partial differential equation. The corresponding driven current profile is also calculated by coupling with the lower-hybrid simulation code (LSC). The results are applied to optimize the lower hybrid current drive (LHCD) efficiency for the Experimental Advanced Superconductor Tokamak (EAST) and suggested that both elongation and triangularity have a notable effect on the efficiency because of the competition between the increase in the resonant area and in the Shafranov shift. Moreover, large aspect-ratio has a negative effect on the efficiency. These effects are studied numerically, which might be considered carefully for both good plasma confinement and high LHCD efficiency.

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Optimization of Lower Hybrid Current Drive Efficiency for EAST Plasma with Non-Circular Cross Section and Finite Aspect-Ratio

Shi¹,

Hu²,

Gao³

2012

Plasma Sci. Technol.

View full text Add to dashboard Cite

show abstract

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Study of LHCD in HL-2A Non-Circular Cross Section Tokamak

Cited by 1 publication

References 13 publications

Optimization of Lower Hybrid Current Drive Efficiency for EAST Plasma with Non-Circular Cross Section and Finite Aspect-Ratio

Optimization of Lower Hybrid Current Drive Efficiency for EAST Plasma with Non-Circular Cross Section and Finite Aspect-Ratio

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