• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Plasma physics and controlled fusion >Simulation of optical and synthetic imaging using microwave reflectometry
【24h】

Simulation of optical and synthetic imaging using microwave reflectometry

机译：使用微波反射仪模拟光学和合成成像

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Two-dimensional full-wave time-dependent simulations in full plasma geometry are presented, which show that conventional reflectometry (without a lens) can be used to synthetically image density fluctuations in fusion plasmas under conditions where the parallel correlation length greatly exceeds the poloidal correlation length of the turbulence. The advantage of synthetic imaging is that the image can be produced without the need for a large lens of high optical quality, and each frequency that is launched can be independently imaged. A particularly simple arrangement, consisting of a single receiver located at the midpoint of a microwave beam propagating along the plasma midplane is shown to suffice for imaging purposes. However, as the ratio of the parallel to poloidal correlation length decreases, a poloidal array of receivers needs to be used to synthesize the image with high accuracy. Simulations using DIII-D relevant parameters show the similarity of synthetic and optical imaging in present day experiments.
机译：提出了在全等离子体几何形状中的二维全波时变模拟，表明在平行相关长度大大超过极相关性的条件下，常规反射法（无透镜）可用于合成图像融合等离子体中的密度波动湍流的长度。合成成像的优势在于无需高光学质量的大镜头即可生成图像，并且发射的每个频率都可以独立成像。示出了一种特别简单的布置，该布置由位于沿等离子体中平面传播的微波束的中点的单个接收器组成，足以满足成像目的。然而，随着平行与多倍体相关长度的比率减小，需要使用接收器的多倍体阵列来高精度地合成图像。使用DIII-D相关参数进行的模拟显示了当今实验中合成成像和光学成像的相似性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号