The Effect of a Poloidal Phase Difference on the Asymmetry of the Coupling Characteristics of an ICRH Antenna |
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| Authors: | Dan Du Xue‐Yu Gong He‐Ping Hu Bai‐Qing Liu Qian‐Hong Huang Xing‐Qiang Lu |
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| Institution: | 1. Department of Mathematics and Physics, University of South China, HengYang 421001, China;2. Department of Nuclear Science and Technology, University of South China, HengYang 421001, China;3. Department of Environmental Monitoring, Changsha Environmental Protection College, ChangSha 410004, China |
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| Abstract: | The coupling asymmetry characteristics of an ion cyclotron resonance heating (ICRH) antenna consisting of two poloidal aligned straps are studied for a JET‐type tokamak. The model used combines a three‐dimensional (3‐D) planar, cold‐plasma, single pass antenna‐plasma coupling code with any phase difference between the current straps, which takes into account the feeders' current and phase difference effects. The result shows that the asymmetry of radiated energy in poloidal direction can be controlled through changing the phase difference of the antenna straps, and when the phase difference equals to π, the asymmetry tends to become most pronounced (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim) |
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| Keywords: | 3‐D model ICRF ICRH phase difference the asymmetry |
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