Liu M, Yi H, Lin M, Wang Y, Shi P, Zheng J, Sun X. Ion cyclotron resonance heating (ICRH) systems for the Keda Mirror with AXisymmetry (KMAX).
Rev Sci Instrum 2017;
88:053505. [PMID:
28571457 DOI:
10.1063/1.4983801]
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Abstract
In this paper, we describe the engineering work involved in constructing two ion cyclotron resonance heating (ICRH) systems for use in the Keda Mirror with AXisymmetry tandem mirror experiment. Because they offer an effective and robust heating method, ICRH systems have been widely used in a variety of plasma experiments. The goal of our system is to heat the hydrogen plasma contained in the central cell using the fundamental ion cyclotron frequency. Both systems can deliver a radiofrequency power of ∼120 kW with adjustable operating frequencies that are tuned to be slightly lower than their local ion cyclotron frequencies. Two types of antennas are installed in the central cell in an attempt to launch both slow and fast waves. The heating mechanism is reliant on the magnetic beach effect for slow waves.
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