Quasi-optical system for 8 mm microwave imaging reflectometry
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摘要: 微波反射成像（MIR）是等离子体湍流扰动诊断中的一种重要手段，它注重于测量高时空分辨力的二维/三维分布，实现等离子体空间湍流结构的可视化实时观测，以获得更为准确的物理信息。针对等离子体诊断要求，结合托卡马克HL-2A装置的参数,对具有准光结构的8 mm微波反射成像系统进行了理论计算和仿真设计，设计出一套准光系统，为指导微波反射成像的系统设计奠定基础。Abstract: Microwave imaging reflectometry (MIR) is a kind of important means in plasma turbulence diagnosis, which is used to obtain the 2-D/3-D image of the turbulences and instabilities with high space and time resolutions, so that visualized real-time observation of plasma turbulence field can be achieved and more accurate information can be gained. This paper presents the theoretical calculation and optical simulation of an 8 mm MIR with quasi-optical system according to the parameters of the HL-2A Tokamak. And the quasi-optical system in the MIR is then designed.
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Key words:
- plasma diagnosis /
- turbulence /
- microwave imaging reflectometry /
- quasi-optical system
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