Design and development of a synchronized operation control system for Thomson scattering diagnostic on J-TEXT

Jingjun ZHOU (周靖钧); Li GAO (高丽); Yinan ZHOU (周乙楠); Jiefeng HUANG (黄杰锋); Ge ZHUANG (庄革)

doi:10.1088/2058-6272/aabd73

Plasma Science and Technology > 2018 > 20(8): 84001-084001. > DOI: 10.1088/2058-6272/aabd73

Jingjun ZHOU (周靖钧), Li GAO (高丽), Yinan ZHOU (周乙楠), Jiefeng HUANG (黄杰锋), Ge ZHUANG (庄革). Design and development of a synchronized operation control system for Thomson scattering diagnostic on J-TEXT[J]. Plasma Science and Technology, 2018, 20(8): 84001-084001. DOI: 10.1088/2058-6272/aabd73

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Design and development of a synchronized operation control system for Thomson scattering diagnostic on J-TEXT

International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering in Huazhong University of Science and Technology, Wuhan 430074, People’s Republic of China

Funds: This work is supported by the National Magnetic Confinement Fusion Science Program of China under Contract No. 2015GB111001 and by National Natural Science Foundation of China (Grant No. 11575067).

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Received Date: December 25, 2017

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Abstract

Abstract

A Thomson scattering diagnostic system is under construction at the Joint Texas Experimental Tokamak (J-TEXT). A 1064 nm Nd:YAG laser with 50 Hz repetition rate is used as the laser source. We have used a software for careful and precise control of the laser through serial communication. A time sequence operating system has been developed to synchronize the laser control and data acquisition system with the central control system (CSS). The system operates commands from the CSS of J-TEXT and generates triggers for the laser and data acquisition system in the proper sequence. It also measures an asynchronous time value that is needed for accurate time stamping. All functions are served by a field-programmable gate array development platform that is suitable for high-speed data and signal processing applications. Several embedded peripherals, including Ethernet and USB 2.0, provide communication with the CSS and the server.
- Thomson scattering diagnostic,
- laser control,
- synchronized operation

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References (14)

References

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Design and development of a synchronized operation control system for Thomson scattering diagnostic on J-TEXT