Optics design for J-TEXT ECE imaging with field curvature adjustment lens

被引：20

作者：

Zhu, Y. ^{[1
]}

Zhao, Z. ^{[1
]}

Liu, W. D. ^{[1
]}

Xie, J. ^{[1
]}

Hu, X. ^{[2
]}

Muscatello, C. M. ^{[2
]}

Domier, C. W. ^{[2
]}

Luhmann, N. C., Jr. ^{[2
]}

Chen, M. ^{[2
]}

Ren, X. ^{[2
]}

Tobias, B. J. ^{[3
]}

Zhuang, G. ^{[4
]}

Yang, Z. ^{[4
]}

机构：

[1] Univ Sci & Technol China, Sch Phys, Hefei 230026, Anhui, Peoples R China

[2] Univ Calif Davis, Davis, CA 95616 USA

[3] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA

[4] Huazhong Univ Sci & Technol, Coll Elect & Elect Engn, Wuhan 430074, Peoples R China

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2014年 / 85卷 / 11期

关键词：

Electron cyclotron resonance - Magnetoplasma - Magnetohydrodynamics;

D O I：

10.1063/1.4893352

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Significant progress has been made in the imaging and visualization of magnetohydrodynamic and microturbulence phenomena in magnetic fusion plasmas. Of particular importance has been microwave electron cyclotron emission imaging (ECEI) for imaging T-e fluctuations. Key to the success of ECEI is a large Gaussian optics system constituting a major portion of the focusing of the microwave radiation from the plasma to the detector array. Both the spatial resolution and observation range are dependent upon the imaging optics system performance. In particular, it is critical that the field curvature on the image plane is reduced to decrease crosstalk between vertical channels. The receiver optics systems for two ECEI on the J-TEXT device have been designed to ameliorate these problems and provide good performance with additional field curvature adjustment lenses with a meniscus shape to correct the aberrations from several spherical surfaces. (C) 2014 AIP Publishing LLC.

引用

页数：3

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