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| 引用本文： | ????????????????,??????????????????.?п?????е??????????????Э????????????Ч?????[J].核聚变与等离子体物理,2013,33(3):214-218. |
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| 作者姓名： | ???????????????? ????????????????¾? |
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| 作者单位： | (1. ??????????????????????? 610065??2. ?й??????????о????????? 100190??3. ?й??????????????????о???????? 230031) |
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| 摘 要： |
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Mechanisms of the negative synergy effect between electron cyclotron current drive and lower hybrid current drive in tokamak |
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| CHEN Shao-yong,HONG Bin-bin,YANG Wen,TANG Chang-Jian,ZHANG Xin-Jun.Mechanisms of the negative synergy effect between electron cyclotron current drive and lower hybrid current drive in tokamak[J].Nuclear Fusion and Plasma Physics,2013,33(3):214-218. |
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| Authors: | CHEN Shao-yong HONG Bin-bin YANG Wen TANG Chang-Jian ZHANG Xin-Jun |
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| Institution: | (1.College of Physical Science and Technology, Sichuan University, Chengdu 610065; 2. Institute of Physics, Chinese Academy of Sciences, Beijing 100190; 3. Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031) |
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| Abstract: | The synergy current drive by combining electron cyclotron wave (ECW) with lower hybrid wave (LHW) can be used to either increase the noninductive current drive efficiency or shape the plasma current profile. In this paper, the synergy current drive by ECW and LHW is studied with numerical simulation. The nonlinear relationship between the wave powers and the synergy current of ECW and LHW is revealed. When the LHW power is small, the synergy current reduces as the ECW power increases, and the synergy current is even reduced to lower than zero, which is referred as negative synergy in the this context. Research shows that the mechanism of the negative synergy is the peaking effect of LHW power profile and the trapped electrons effect. The present research is helpful for understanding the physics of synergy between electron cyclotron current drive and lower hybrid current drive, it can also instruct the design of experiments. |
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