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ALFVéN INSTABILITIES DURING ICRF MINORITY HEATING IN TFTR

机译:TFTR中ICRF少数族裔加热期间的Alvvén不稳定

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摘要

High power ICRF minority heating produces an energetic tail in the distribution functionrnof the resonant ions. When the energy in this tail exceeds a certain threshold, various kinds ofrnAlfvénic instabilities can be excited. In TFTR, it is found that modes whose frequencies decreasernvs. time cause fast ion losses and in turn a reduced Rf heating efficiency, unlike the usual globalrnTAE. The frequency decrease of the modes is found to correspond to a radial movement of thernmode itself: modelling shows that this feature causes an avalanche of fast ion losses due to arndiffusion process. The frequency-decreasing modes play a fundamental role in the stabilization ofrnthe sawtooth and in its subsequent crash.
机译:高功率ICRF少数加热会在共振离子的分布函数中产生高能尾。当该尾巴中的能量超过某个阈值时,会激发各种Alfvénic不稳定性。在TFTR中,发现频率降低的模式。与通常的globalTAE不同,时间会导致离子快速损失,进而降低Rf加热效率。发现这些模式的频率降低与该模式本身的径向运动相对应:建模表明,该特征由于纺丝过程引起了快速离子损失的雪崩。频率降低模式在锯齿的稳定及其随后的碰撞中起着基本作用。

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  • 来源
    《Fusion energy 1998》|1998年|p.1-4|共4页
  • 会议地点 Yokohama(JP)
  • 作者单位

    Princeton Plasma Physics Laboratory, P.O. box 451, Princeton N.J. 08543;

    rnPrinceton Plasma Physics Laboratory, P.O. box 451, Princeton N.J. 08543;

    rnPrinceton Plasma Physics Laboratory, P.O. box 451, Princeton N.J. 08543;

    rnPrinceton Plasma Physics Laboratory, P.O. box 451, Princeton N.J. 08543;

    rnPrinceton Plasma Physics Laboratory, P.O. box 451, Princeton N.J. 08543;

    rnPrinceton Plasma Physics Laboratory, P.O. box 451, Princeton N.J. 08543;

    rnPrinceton Plasma Physics Laboratory, P.O. box 451, Princeton N.J. 08543;

    rnPrinceton Plasma Physics Laboratory, P.O. box 451, Princeton N.J. 08543;

    rnTRINITI, Troitsk, Moscow, Russia 142 092;

    rnPrinceton Plasma Physics Laboratory, P.O. box 451, Princeton N.J. 08543;

    rnIntevac Inc., 3550 Basset St., Santa Clara, Ca. 95054;

    rnPrinceton Plasma Physics Laboratory, P.O. box 451, Princeton N.J. 08543;

    rnPrinceton Plasma Physics Laboratory, P.O. box 451, Princeton N.J. 08543;

    rnPrinceton Plasma Physics Laboratory, P.O. box 451, Princeton N.J. 08543;

    rnAssociazione EURATOM-ENEA, CRE 00044Frascati, Italy;

    rnPrinceton Plasma Physics Laboratory, P.O. box 451, Princeton N.J. 08543;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 受控热核反应(聚变反应理论及实验装置);
  • 关键词

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