The cross-polarization scattering system for the magnetic fluctuation measurement in the Experimental Advanced Superconducting Tokamak
| Autor: | Ge Zhuang, S. B. Zhang, C. Zhou, H. Li, J. Zhang, H.R. Fan, Z. Y. Liu, Tao Lan, Y. Q. Liu, Zhengkun Liu, Xuefei Feng, J. L. Xie, A. D. Liu, Wenzhe Mao, Weihao Liu, J. X. Ji, Xiaodong Zhong, L. Q. Hu |
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| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Physics business.industry Scattering Cross polarization 01 natural sciences Electromagnetic radiation 010305 fluids & plasmas Ray tracing (physics) Superconducting tokamak symbols.namesake Optics Amplitude 0103 physical sciences symbols Wavenumber business Instrumentation Doppler effect |
| Zdroj: | The Review of scientific instruments. 92(4) |
| ISSN: | 1089-7623 |
| Popis: | The cross-polarization scattering (CPS) system for magnetic fluctuation measurements in the Experimental Advanced Superconducting Tokamak (EAST) has been designed and installed. Different from the Doppler reflectometer (DR) system, the CPS system detects the perpendicular polarization of the electromagnetic wave induced by magnetic fluctuations B̃. The CPS system in the EAST has been developed from the existing Doppler reflectometer system, and they are integrated together for simultaneous measurement of magnetic and density fluctuations. Ray-tracing simulations are used to calculate the scattering locations and the wavenumber coverage of the magnetic fluctuation for CPS. In the experiments, the CPS and DR system data were different in Doppler shift, amplitude, and spectrum broadening. In this article, the hardware design, the ray tracing, and the preliminary results of the system in the EAST are presented. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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