Heavy‐ion beam probe for the Advanced Toroidal Facility
Heavy‐ion beam probe for the Advanced Toroidal Facility
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用于先进环形设施的重离子束探头
DOI：
10.1063/1.1140128
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发表时间：
1988
影响因子：
1.6
通讯作者：
C. Eberle
中科院分区：
文献类型：
--
作者：
A. Carnevali;K. Connor;S. Aceto;J. Lewis;J. Glowienka;D. Shipley;C. Eberle
新古典理论预测，径向电场会在非轴对称圆环内限制的等离子体中产生，并且它们会强烈影响此类设备的限制。橡树岭国家实验室的 ATF Torsatron 已计划使用重离子束探头，其主要目标是直接测量等离子体电势径向分布，从而直接测量径向电场。复杂的 ATF 几何形状和磁场结构呈现出比之前在托卡马克、镜子和凹凸环面上运行的光束探针系统更具挑战性的诊断环境。特别关注系统调整和控制能力。由于无论有或没有等离子体，探测离子轨迹基本保持相同，因此使用合适的电离目标的原位校准方案是可能的。计划于 1988 年安装完整的诊断系统。
Neoclassical theory predicts that radial electric fields develop in plasmas confined in nonaxisymmetric tori and that they strongly influence the confinement in such devices. A heavy‐ion beam probe has been planned for the ATF torsatron at Oak Ridge National Laboratory with the primary goal of providing direct measurements of the plasma potential radial profile and thus of the radial electric field. The complex ATF geometry and magnetic field structure present a diagnostic environment more challenging than that found on previous beam probe systems which have operated on tokamaks, mirrors, and bumpy tori. Particular attention has been given to system alignment and control capabilities. Since the probing ion trajectories remain essentially the same with or without the plasma, an in situ calibration scheme using suitable ionization targets is possible. Installation of the complete diagnostic system is planned for 1988.