| EAST ??????ICRF ???????????????? |
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| 引用本文： | ??,????????????,????????????????????,??.EAST ??????ICRF ????????????????[J].核聚变与等离子体物理,2015,35(3):233-239. |
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| 作者姓名： | ?? ???????????? ???????¾???????????? ?? |
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| 作者单位： | (1???й??????????????????????????????? 230029?? 2???й??????????????????о???????? 230031) |
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| 摘 要： |
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Three dimensional electromagnetic analysis of the four strap ICRF antenna for EAST |
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| YANG Hua,WU Cong-feng,DONG Sai,ZHANG Xin-jun,ZHAO Yan-ping,SHANG Lei.Three dimensional electromagnetic analysis of the four strap ICRF antenna for EAST[J].Nuclear Fusion and Plasma Physics,2015,35(3):233-239. |
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| Authors: | YANG Hua WU Cong-feng DONG Sai ZHANG Xin-jun ZHAO Yan-ping SHANG Lei |
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| Institution: | (1. National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230029; 2. Institute of Plasma Physics, the Chinese Academy of Sciences, Hefei 230031) |
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| Abstract: | The performance of the four strap ion cyclotron range of frequency (ICRF) antenna in EAST was studied by three dimensional electromagnetic code CST MWS. The coupling impedance with various frequencies, the distribution of current on straps and the power spectra for the three types of phases were calculated. The voltage breakdown and ICRF-related impurity were also studied. Simulation results show that the coupling impedance and power spectrum of the antenna design were reasonable, however, highest electric field, which is 3.61MV?m?1 for (0, 0, 0, 0) toroidal phasing at the local area, exceeds the empirical value of breakdown. After the structure size was optimized, the maximum of E-field was below the breakdown value, the results also show that the high radio frequency (RF) potential was close to the antenna limiter, the RF potential along total B-field in front of Faraday screens 10mm for (0, π, π, 0) phasing was one-third of that for (0, 0, π, π) phasing. |
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