An accurate automated technique for quasi-optics measurement of the microwave diagnostics for fusion plasma |
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| Authors: | Jianqiang HU Ahdi LIU Chu ZHOU Xiaohui ZHANG Mingyuan WANG Jin ZHANG Xi FENG Hong LI Jinlin XIE Wandong LIU Changxuan YU |
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| Affiliation: | CAS Key Laboratory of Geospace Environment, Department of Modem Physics, University of Science and Technology of China, Hefei 230026, People's Republic of China |
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| Abstract: | A new integrated technique for fast and accurate measurement of the quasi-optics,especially for the microwave/millimeter wave diagnostic systems of fusion plasma,has been developed.Using the LabVIEW-based comprehensive scanning system,we can realize not only automatic but also fast and accurate measurement,which will help to eliminate the effects of temperature drift and standing wave/multi-reflection.With the Matlab-based asymmetric two-dimensional Gaussian fitting method,all the desired parameters of the microwave beam can be obtained.This technique can be used in the design and testing of microwave diagnostic systems such as reflectometers and the electron cyclotron emission imaging diagnostic systems of the Experimental Advanced Superconducting Tokamak. |
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| Keywords: | LabVIEW Matlab Gaussian fitting reflectometer ECEI microwave quasi-optics |
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