Design of the high-resolution soft X-ray imaging system on the Joint Texas Experimental Tokamak

Journal Article · Sat Nov 15 00:00:00 EST 2014 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4886432· OSTI ID:22308945

Li, Jianchao; Ding, Yonghua; Zhang, Xiaoqing; Xiao, Zhengyu; Zhuang, Ge ^[1]

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1. State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electric and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074 (China)

A new soft X-ray diagnostic system has been designed on the Joint Texas Experimental Tokamak (J-TEXT) aiming to observe and survey the magnetohydrodynamic (MHD) activities. The system consists of five cameras located at the same toroidal position. Each camera has 16 photodiode elements. Three imaging cameras view the internal plasma region (r/a < 0.7) with a spatial resolution about 2 cm. By tomographic method, heat transport outside from the 1/1 mode X-point during the sawtooth collapse is found. The other two cameras with a higher spatial resolution 1 cm are designed for monitoring local MHD activities respectively in plasma core and boundary.

• OSTI ID: 22308945
• Journal Information: Review of Scientific Instruments, Vol. 85, Issue 11; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CAMERAS
HEAT TRANSFER
MAGNETOHYDRODYNAMICS
PLASMA INSTABILITY
SAWTOOTH OSCILLATIONS
SOFT X RADIATION
SPATIAL RESOLUTION
TEXT DEVICES
TOMOGRAPHY