Results 51 to 60 of about 3,533 (208)

Overcurrent Protection for Gyrotrons in EAST ECRH System

, 2017
In this paper, an overcurrent protection system is designed to ensure the safety of the gyrotrons in the EAST ECRH system. Two overcurrent protection systems were established, a fast one and a slow one.
Feng, Jianqiang, Hu, Huaichuan, Liu, Fukun, Tang, Yunying, Xu, Handong, Xu, Weiye, Yang, Yong   +6 more
core   +1 more source

Newly uncovered physics of MHD instabilities using 2-D electron cyclotron emission imaging system in toroidal plasmas [PDF]

, 2019
Validation of physics models using the newly uncovered physics with a 2-D electron cyclotron emission imaging (ECEi) system for magnetic fusion plasmas has either enhanced the confidence or substantially improved the modeling capability.
Aydemir AY, Bateman G., Chang CS, Chang Z, Costley AE, Dubois MA, Evans TE, Fredrickson ED, Gao B.X., Granetz RS, Igochine V, Janicki C, Jiang M., Kadomtsev BB, Kusano K, Kwon J-M, Maggi CF, Nagayama Y, O’Rourke J., Parks GK, Park HK, Choi MJ, Hong SH, Titov VS, Tobias B, Tsurutani B.T., Udintsev VS, Von Goeler S., Wan B., Wang Y., Wesson JA, West WP, Wolf RC   +30 more
core   +1 more source

On the Behavior of Two C1 Finite Elements Versus Anisotropic Diffusion

International Journal for Numerical Methods in Fluids, Volume 97, Issue 12, Page 1541-1557, December 2025.
Bi‐cubic Hemite‐Bézier and reduced cubic Hsieh‐Clough‐Tocher finite elements, of class C1, are compared for the solution of a highly anisotropic diffusion equation. They are tested numerically for various ratios of the diffusion coefficients on different meshes, even aligned with the anisotropy.
Blaise Faugeras, Hervé Guillard, Boniface Nkonga, Francesca Rapetti   +3 more
wiley   +1 more source

Long-pulse H-mode operation with stored-energy monitoring for detachment feedback control with a new lower tungsten divertor in EAST

Nuclear Fusion, 2023
One of the key challenges for future fusion research is to mitigate the high steady-state heat load on the divertor target plates, and divertor detachment offers a promising solution. The Experimental Advanced Superconducting Tokamak (EAST) has developed
Y.Q. Tao, G.S. Xu, K. Wu, Q.Q. Yang, L. Wang, Q.P. Yuan, Y.F. Wang, X. Lin, L.Y. Meng, G.F. Ding, L. Yu, R. Chen, J.B. Liu, N. Yan, H. Lan, P.J. Sun, K.D. Li, J.C. Xu, Y.M. Duan, Q. Zang, Y.F. Jin, L. Zhang, S.X. Wang, K.N. Geng, R.R. Liang   +24 more
doaj   +1 more source

High-order Discretization of a Gyrokinetic Vlasov Model in Edge Plasma Geometry

, 2017
We present a high-order spatial discretization of a continuum gyrokinetic Vlasov model in axisymmetric tokamak edge plasma geometries. Such models describe the phase space advection of plasma species distribution functions in the absence of collisions ...
Colella, Phillip, Dorf, Mikhail A., Dorr, Milo R., Ghosh, Debojyoti, Hittinger, Jeffrey A. F., Schwartz, Peter O.   +5 more
core   +1 more source

A h‐Adaptivity Strategy for Hybridizable Discontinuous Galerkin (HDG) Simulations of Fluid Transport Models in Tokamak Plasma

International Journal for Numerical Methods in Engineering, Volume 126, Issue 17, 15 September 2025.
ABSTRACT The highly anisotropic, multi‐scale nature of fusion plasma simulations in tokamaks, combined with the complexity in the geometries of plasma‐facing components and magnetic equilibrium, challenges numerical schemes. They therefore require the development of advanced numerical techniques to enhance computational efficiency and enable codes to ...
Marcello Capasso, Ivan Kudashev, Frédéric Schwander, Éric Serre   +3 more
wiley   +1 more source

Observations of xenon spectra on the EAST x-ray crystal spectrometer for high-temperature plasma diagnostics

Nuclear Fusion, 2023
The Xe ^44+ 2.7203 Å line, which has been proposed as one of the diagnostic lines for the x-ray imaging crystal spectrometer on ITER, is observed on the EAST tokamak together with its several satellite lines. The observations are made under high electron
Dian Lu, Fudi Wang, Luis F. Delgado-Aparicio, Yang Yang, Kenneth Hill, Cheonho Bae, Manfred Bitter, Jia Fu, Hongming Zhang, Yongcai Shen, Yifei Jin, Haijing Liu, Liang He, Shengyu Fu, Qing Zang, Bo Lyu   +15 more
doaj   +1 more source

Confinement of fast ions in east tokamak

Acta Physica Sinica, 2006
The three well-known parameters of motion (magnetic momentum, energy and canonical toroidal momentum) are utilized to develop a guiding center orbit code, GCORBIT. The effect of poroidal field ripple and toroidal angle scatter is considered in the GCORBIT.
null Zhang Jie, null Luo Jia-Rong, null Wang Shao-Jie   +2 more
openaire   +1 more source

Neutron Energy Spectrum Measurements with a Compact Liquid Scintillation Detector on EAST

, 2013
A neutron detector based on EJ301 liquid scintillator has been employed at EAST to measure the neutron energy spectrum for D-D fusion plasma. The detector was carefully characterized in different quasi-monoenergetic neutron fields generated by a 4.5 MV ...
Chen, Jinxiang, Chen, Zhongjing, Fan, Tieshuan, Gorini, G., Hu, Liqun, Peng, Xingyu, Wan, Baonian, Xie, Xufei, Yuan, Xi, Zhang, Guohui, Zhang, Xing, Zhong, Guoqiang   +11 more
core   +1 more source

Measurements of Auroral Plasma Properties Using Low‐Cost, Mobile, Ground‐Based Detectors

Earth and Space Science, Volume 12, Issue 9, September 2025.
Abstract An expedition to Fairbanks, AK, was undertaken to study the aurora during the peak of solar cycle 25. Low‐cost diagnostics were developed to enable ground‐based measurements of ionospheric plasma parameters and auroral phenomena, namely a compact spectrometer and a high‐resolution all‐sky camera with 2‐axis magnetometer. Observations were made
S. Mackie, J. Rivera, T. Evans, J. L. Ball, S. Dannhoff, J. Heinzel, J. Van de Lindt, S. Moroch   +7 more
wiley   +1 more source