The Faraday-effect based polarimeter and interferometer are developed for non-perturbation magnetic field and density measurements on the Keda Reconnection eXperiment (KRX) device. The magnetic reconnection is externally driven by a pair of parallel current plates. To design this instrument and provide an alternative way to facilitate theory–experiment comparisons via forward modeling of the diagnostics process with full plasma dynamics given by simulation, we develop a synthetic diagnostics based on 2D photonic integrated circuit simulation for magnetic reconnection on the KRX. The view-line geometry is optimized and wavelengths (1 mm) of the polarimeter and interferometer are selected to ensure the sensitivity of measurement on the KRX. We have simulated magnetic reconnection on the x-line (x–z plane) with horizontal viewing and vertical viewing for line of sight measurements. It is found that the current sheet width and indicator of magnetic reconnection can be inferred directly from the dynamics of Faraday rotation even with the line-integrated character of polarimeter–interferometer diagnostics.

中文翻译：

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在 Keda Reconnection eXperiment (KRX) 设备上开发法拉第旋转测量

基于法拉第效应的旋光仪和干涉仪是为在 Keda Reconnection eXperiment (KRX) 设备上进行非微扰磁场和密度测量而开发的。磁重联由一对平行电流板从外部驱动。为了设计该仪器并提供一种替代方法，通过使用仿真给出的完整等离子体动力学对诊断过程进行正向建模来促进理论-实验比较，我们开发了一种基于 2D 光子集成电路仿真的合成诊断方法，用于 KRX 上的磁重联。优化了视线几何形状，并选择了偏振计和干涉仪的波长 (1 mm)，以确保 KRX 上的测量灵敏度。我们已经模拟了 x 线（x-z 平面）上的磁重联，水平观察和垂直观察进行了视线测量。结果发现，即使具有旋光仪-干涉仪诊断的线积分特性，也可以直接从法拉第旋转的动力学中推断出电流片宽度和磁重联指标。