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Prediction of ICRH coupling resistance for J-TEXT
Plasma Science and TechnologyAbstract To predict the coupling efficiency of ion cyclotron resonance heating (ICRH), a data-driven prediction model for ICRH coupling resistance based on a long short-term memory (LSTM) network is developed. The model is trained using multi-diagnostic time-series data acquired from the ICRH system, the far-infrared three-wave ...
Yulong Deng +4 more
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Progress of recent experimental research on the J-TEXT tokamak
Nuclear Fusion, 2017The progress of experimental research over the last two years on the J-TEXT tokamak is reviewed and reported in this paper, including: investigations of resonant magnetic perturbations (RMPs) on the J-TEXT operation region show that moderate amplitude of applied RMPs either increases the density limit from less than 0.7n G to 0.85n G (n G is the ...
G. Zhuang +23 more
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Study of the penetration of resonant magnetic perturbations in J-TEXT
Nuclear Fusion, 2014In the J-TEXT tokamak, the penetration of resonant magnetic perturbations (RMPs) has been studied by using a set of in-vessel RMP coils. It is found that, once the RMP amplitude exceeds a critical value, the applied RMP can lead to field penetration and excitation of a large locked mode in the tearing-stable plasma.
Nengchao Wang +13 more
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The preliminary design of Global Interlock System in J-TEXT
2013 IEEE 25th Symposium on Fusion Engineering (SOFE), 2013J-TEXT COntrol, Data Access and Communication (CODAC) is an advanced control system designed for J-TEXT Lab. In J-TEXT CODAC, some critical functions is implemented by some specialized Plant System. Global Interlock System (GIS) is a specialized Plant System of J-TEXT CODAC, which is responsible for coordinate the Plant Interlock Systems (PIS), in ...
Guozhen Zheng +4 more
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The design and application of Alfvén antennas in J-TEXT tokamak
Fusion Engineering and Design, 2018Abstract Research on Alfven waves and Alfven eigenmodes is of importance in tokamak plasma physics, such as investigation of interaction between energetic particles and AEs, turbulence and anomalous transport due to AEs, and so on. An Alfven antennas system is designed for J-TEXT tokamak in order to study the Alfven eigenmode excitation, damping ...
Jiyang He +7 more
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Design of vacuum ultraviolet spectroscopy system on J-TEXT
Journal of Instrumentation, 2017A Vacuum Ultraviolet (VUV) spectroscopy system is designed on J-TEXT tokamak in order to study the transport of the light impurities including carbon and oxygen in edge region with the effect of RMP or ECRH. It covers the wavelength ranging from 30 to 300nm.
Y. Li +4 more
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Rogowski Sensor for Plasma Current Measurement in J-TEXT
IEEE Sensors Journal, 2009Rogowski coil is very useful in transient current measurement. Rogowski sensor consisting of Rogowski coil and integrator is one of the most important diagnostic instrumentations in Tokamak. In recent years, new structures of Rogowski coil based on printed circuit board (PCB) are developed to replace traditional handmade Rogowski coil for more ...
Chen Qing +3 more
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Establishment of the compact radiative divertor configuration on J-TEXT
Plasma Physics and Controlled FusionAbstract To investigate effective methods for mitigating divertor heat loads on the J-TEXT tokamak, compact magnetic geometries with the X-point in close proximity to the target were realized by adjusting the divertor coil current. Subsequently, the compact radiative divertor (CRD) configuration was established through CH₄ injection ...
Lei Yu +9 more
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Automatic text summarization: A comprehensive survey
Expert Systems With Applications, 2021Cherif Salama
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Text Prior Guided Scene Text Image Super-Resolution
IEEE Transactions on Image Processing, 2023Shi Guo, , Jianqi Ma
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