An accurate automated technique for quasi-optics measurement of the microwave diagnostics for fusion plasma

Jianqiang HU (胡健强); Ahdi LIU (刘阿娣); Chu ZHOU (周楚); Xiaohui ZHANG (张小辉); Mingyuan WANG (王明远); Jin ZHANG (张津); Xi FENG (冯喜); Hong LI (李弘); Jinlin XIE (谢锦林); Wandong LIU (刘万东); Changxuan YU (俞昌旋)

doi:10.1088/2058-6272/aa6794

Plasma Science and Technology > 2017 > 19(8): 84002-084002. > DOI: 10.1088/2058-6272/aa6794

Jianqiang HU (胡健强), Ahdi LIU (刘阿娣), Chu ZHOU (周楚), Xiaohui ZHANG (张小辉), Mingyuan WANG (王明远), Jin ZHANG (张津), Xi FENG (冯喜), Hong LI (李弘), Jinlin XIE (谢锦林), Wandong LIU (刘万东), Changxuan YU (俞昌旋). An accurate automated technique for quasi-optics measurement of the microwave diagnostics for fusion plasma[J]. Plasma Science and Technology, 2017, 19(8): 84002-084002. DOI: 10.1088/2058-6272/aa6794

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An accurate automated technique for quasi-optics measurement of the microwave diagnostics for fusion plasma

CAS Key Laboratory of Geospace Environment, Department of Modern Physics, University of Science and Technology of China, Hefei 230026, People’s Republic of China

Funds: This work is supported by National Natural Science Foundation of China (Grant Nos. 10990211, 11475173) and the ITER Domestic Program of China (Grant Nos. 2013GB106002, 2014GB109002).

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Abstract

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.
- LabVIEW,
- Matlab,
- Gaussian fitting,
- reflectometer,
- ECEI,
- microwave quasi-optics

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