Development of microwave imaging reflectometry on the HL-2A tokamak

Shi Zhongbing; Jiang Min; Che Yonglong; Wang Bin; Yin Yong; Meng Lin; Zhong Wulu; Chen Wei; Shi Peiwan; Liu Zhetian; Fu Binzhong; Ding Xuantong; Liu Yi; Yang Qingwei; Duan Xuru

doi:10.1063/1.4889741

Development of microwave imaging reflectometry on the HL-2A tokamak

Rev Sci Instrum. 2014 Nov;85(11):11D816. doi: 10.1063/1.4889741.

Authors

Shi Zhongbing¹, Jiang Min¹, Che Yonglong¹, Wang Bin², Yin Yong², Meng Lin², Zhong Wulu¹, Chen Wei¹, Shi Peiwan¹, Liu Zhetian¹, Fu Binzhong¹, Ding Xuantong¹, Liu Yi¹, Yang Qingwei¹, Duan Xuru¹

Affiliations

¹ Southwestern Institute of Physics, Chengdu 610041, China.
² School of Physical Electronics, University of Electronics Science and Technology of China, Chengdu 610054, China.

PMID: 25430229
DOI: 10.1063/1.4889741

Abstract

A microwave imaging reflectometry system has been developed to visualize the density fluctuations on the HL-2A tokamak. This system is characterized by a quasi-optical system, a four frequency microwave transmitter, and a microwave quadrature receiver system with a 3D adjustable U-shaped horn antenna array, that generate 8 (poloidal) × 4 (radial) × 2 (toroidal) = 64 channel images of density fluctuations. Simulations and laboratory tests of the optical system have been conducted. The test results are in good agreement with the simulations.