Results 251 to 260 of about 1,079,787 (297)

Vibration mitigation in J-TEXT far-infrared diagnostic systems

Review of Scientific Instruments, 2012
Optical structure stability is an important issue for far-infrared (FIR) phase measurements. To ensure good signal quality, influence of vibration should be minimized. Mechanical amelioration and optical optimization can be taken in turn to decrease vibration's influence and ensure acceptable measurement.
Q, Li, J, Chen, G, Zhuang, Z J, Wang, L, Gao, W, Chen   +5 more
openaire   +2 more sources

Design of Thomson scattering diagnostic system on J-TEXT

Review of Scientific Instruments, 2016
An infrared multi-channel Thomson scattering diagnostic system is designed from the viewpoint of development of the proposed system on the Joint Texas Experimental Tokamak (J-TEXT). A 3 J/50 Hz Nd:YAG laser, which is injected vertically into plasma in the direction from top to bottom, serves as the power source of the system.
Yinan, Zhou, Li, Gao, Jiefeng, Huang, Qingshuang, Qiu, Ge, Zhuang   +4 more
openaire   +2 more sources

Recent research work on the J-TEXT tokamak

Nuclear Fusion, 2013
An overview of the recent research work on the J-TEXT tokamak over the last two years is presented. A series of experiments and simulations of the interaction between resonant magnetic perturbations (RMPs) and plasma were carried out on the J-TEXT tokamak.
G. Zhuang, K.W. Gentle, B. Rao, X.D. Feng, J. Chen, Q.M. Hu, W. Jin, X.W. Hu, Z.Y. Chen, Z.J. Wang, Y.H. Ding, M. Zhang, Z.P. Chen, Z.J. Yang, L. Gao, X.Q. Zhang, Z.F. Cheng, Y. Pan, K.X. Yu, H. Huang   +19 more
openaire   +1 more source

Equilibrium Reconstruction and Its Integration in J-TEXT

Plasma Science and Technology, 2016
The equilibrium fitting code (EFIT) and its application in the J-TEXT tokamak are integrated by the Matlab language. The function of analysis and visualization to the results is added. In addition, the experiment data measured by soft X-ray (SXR) are used to calculate plasma equilibrium as a constraint condition.
Fan Zhang, Tao Xu, Xinfeng Sun, Xiaoqing Zhang, Ge Zhuang, Xiang Jian   +5 more
openaire   +1 more source

J-TEXT distributed data storage and management system

Fusion Engineering and Design, 2018
Abstract As fusion experiment goes to steady state and high-performance data acquisition system been developed, traditional storage solutions cannot cope with the needs of fusion experiment data storage. Distributed file systems such as Lustre are being adopted by more and more facilities.
W. Zheng, Q. Liu, M. Zhang, K. Wan, F. Hu, K. Yu   +5 more
openaire   +1 more source

The J-TEXT CODAC system design and implementation

Fusion Engineering and Design, 2014
Abstract Inspired by the ITER COntrol, Data Access and Communication (CODAC) and ITER instrumentation and control system, J-TEXT tokamak has upgraded its control system with J-TEXT CODAC system. The J-TEXT CODAC system is based on Experimental Physics and Industrial Control System (EPICS).
W. Zheng, M. Zhang, J. Zhang, G. Zhuang, Y. He, T. Ding   +5 more
openaire   +1 more source

The timing system on the J-TEXT tokamak

Fusion Engineering and Design, 2014
Abstract This paper describes the timing system designed to control the operation time-sequence and to generate clocks for various sub-systems on J-TEXT tokamak. The J-TEXT timing system is organized as a distributed system which is connected by a tree-structured optical fiber network.
Wei Zheng, Ming Zhang, Ge Zhuang, Tonghai Ding, Fuqiang Huang, Lingjie Shan   +5 more
openaire   +1 more source

Fusion power supply advances by the J-TEXT engineering team

Plasma Science and Technology, 2022
Abstract To meet the stringent requirements of the fusion power supply for large-scale fusion devices, the J-TEXT engineering team has carried out key technology research and applications in several important directions of fusion power supply.
Ming ZHANG, Hongqi ZHANG, Rumeng WANG, Xiaohan XIE, Wenshan WANG, Yixing JIANG, Zhiheng LI, Peilong ZHANG, Liye WANG, Shaoxiang MA, Yong YANG, Wei ZHENG, Bo RAO   +12 more
openaire   +1 more source

Tangential x-ray imaging crystal spectrometer on J-TEXT tokamak

Review of Scientific Instruments, 2012
A tangential x-ray imaging crystal spectrometer (XICS) has been developed for the J-TEXT tokamak to measure the ion temperature and the plasma toroidal rotation velocity. The resonance spectral line and its satellites of Ar XVII in the ranges of 3.94 Å–4.0 Å are detected. A spherically bent quartz crystal with 2d = 4.913 Å is used in this system.
W, Jin, Z Y, Chen, Y S, Cen, S G, Lee, Y J, Shi, Y H, Ding, Z J, Yang, Z J, Wang, G, Zhuang   +8 more
openaire   +2 more sources

The Design of Global Interlock System in J-TEXT

IEEE Transactions on Plasma Science, 2014
J-TEXT control, data access, and communication (CODAC) is an advanced control system designed for J-TEXT Laboratory. In J-TEXT CODAC, some critical functions are implemented by some specialized plant systems. Global interlock system (GIS) is a specialized plant system, which provides protection of investment for the J-TEXT.
Guozhen Zheng, Wei Zheng, Ge Zhuang, Ming Zhang, Tonghai Ding   +4 more
openaire   +1 more source