Results 21 to 30 of about 12,708 (208)

Large density amplification measured on jets ejected from a magnetized plasma gun [PDF]

, 2007
Observation of a large density amplification in the collimating plasma jet ejected from a coplanar coaxial plasma gun is reported. The jet velocity is ~30 km s^-1 and the electron density increases from ~10^20 to 10^(22–23) m^-3.
Bellan, Paul M., You, Setthivoine, Yun, Gunsu S.   +2 more
core   +1 more source

Formation of convective cells in the scrape-off layer of the CASTOR tokamak [PDF]

, 2004
Understanding of the scrape-off layer (SOL) physics in tokamaks requires diagnostics with sufficient temporal and spatial resolution. This contribution describes results of experiments performed in the SOL of the CASTOR tokamak (R=40 cm, a = 6 cm) by ...
Counsell G F Cohen R H Hellander P Ryutov D D the MAST team, E Martines, F Zacek, G Bonhomme, G Van Oost, Hara J, Hidalgo C, I Duran, I Voitsekhovitch, J Adamek, J Gunn, J Stockel, Krlin L, M Hron, P Devynck, P Stejskal, Ryutov D D, Stockel J, V Weinzettl, Van Oost G, Van Oost G   +20 more
core   +3 more sources

Plasma Magnetic Control in Tokamak Devices [PDF]

Journal of Fusion Energy, 2018
In tokamak experimental reactors, the magnetic control system is one of the main plasma control systems that is required, together with the density control, since the very beginning, even before first operations. Indeed, the magnetic control drives the current in the external poloidal circuits in order to first achieve the breakdown conditions and ...
openaire   +3 more sources

Cross-machine comparison of runaway electron generation during tokamak start-up for extrapolation to ITER

Nuclear Fusion, 2023
A cross-machine comparison of global parameters that determine the runaway electron (RE) generation and loss process during tokamak start-up was carried out with the aim to extrapolate these to ITER.
P.C. de Vries, Y. Lee, Y. Gribov, A.B. Mineev, Y.S. Na, R. Granetz, B. Stein-Lubrano, C. Reux, Ph. Moreau, V. Kiptily, B. Esposito, D.J. Battaglia, J.R. Martin-Solis, ITPA IOS Collaborators   +13 more
doaj   +1 more source

SIMULATION AND MEASUREMENT OF EXTERNAL ELECTROMAGNETIC ENVIRONMENT OF TOKAMAK DEVICE

Radiation Protection Dosimetry, 2021
Abstract Magnetic confinement nuclear fusion is an important way to realize controllable nuclear fusion. Due to the large current and complicated coil arrangement, there is a complicated electromagnetic environment around the fusion device. In this paper, the B-dot sensor is used to measure the magnetic field, the D-dot sensor is used to
Maoxing, Zhang, Yunsheng, Jiang, Zhiqian, Xu, Shouzhi, Wang, Wenbin, Liu, Cui, Meng, Yi, Tan, Zhe, Gao   +7 more
openaire   +2 more sources

Helicon Wave Auxiliary Current Drive under D-T Plasma Operation Mode on HL-3 Tokamak Device

Yuanzineng kexue jishu
The D-T plasma discharge is a critical operational mode for reactor-grade Tokamak devices. The helicon wave current drive on HL-3 Tokamak device was studied in the paper.
WANG Sen1, ZI Daozheng1, CHENG Zehou1, LI Xinxia1, 2,
doaj   +1 more source

Gyrokinetic Studies of Microinstabilities in the RFP

, 2013
An analytic equilibrium, the Toroidal Bessel Function Model, is used in conjunction with the gyrokinetic code GYRO to investigate the nature of microinstabilities in a reversed field pinch (RFP) plasma.
Carmody, Daniel, Pueschel, M. J., Terry, P. W.   +2 more
core   +1 more source

Effect of kinetic resonances on the stability of Resistive Wall Mode in Reversed Field Pinch [PDF]

, 2011
The kinetic effects, due to the mode resonance with thermal particle drift motions in the reversed field pinch (RFP) plasmas, are numerically investigated for the stability of the resistive wall mode, using a non-perturbative MHD-kinetic hybrid ...
Alper B, Bishop C M, Bolzonella T, D Yadykin, Gregoratto D, Gryaznevich M, Guazzotto L, Liu Y Q, Menard J E, Okabayashi M, R Paccagnella, Y Q Liu   +11 more
core   +2 more sources

Multi‐objective optimization design of the large‐scale high‐intensity homogeneous magnetic field coil system based on non‐dominated sorting genetic algorithm (NSGA‐II)

IET Electric Power Applications, 2022
With the development of modern tokamak devices, the magnetic interference problem has become increasingly serious. On considering the International Thermonuclear Experimental Reactor (ITER), for example, the stray magnetic field around the tokamak device
Boliang Zhu, Yiwei Lu, Yong Yang, Ming Zhang, Li Jiang, Shusheng Wang   +5 more
doaj   +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