Results 21 to 30 of about 89,460 (299)
Plasma Physics and Controlled Fusion, 2020 We demonstrate 2D reconstructions of the fast-ion velocity distribution from two-view fast-ion D-alpha (FIDA) measurements at the EAST tokamak. By expressing the distribution in a basis relying on the fast-ion slowing-down process in fusion plasmas, the ...
B. Madsen +23 more
semanticscholar +1 more source
Observation of Alfvén Eigenmodes driven by off-axis neutral beam injection in the TCV tokamak
Plasma Physics and Controlled Fusion, 2020 Fast-particle driven Alfvén Eigenmodes have been observed in low-collisionality discharges with off-axis neutral beam injection (NBI), electron cyclotron resonance heating (ECRH) and a reduced toroidal magnetic field.
B. Geiger +15 more
semanticscholar +1 more source
Analysis of equivalent impedance characteristics of a high power RF ion source driver
He jishu, 2021 BackgroundThe ion source is one of the key components of the neutral beam injection system. Radio frequency (RF) ion source has the advantages of long life time, easy maintenance and long pules operation, which make it the main alternative source for the
YANG Puqiong +7 more
doaj +1 more source
Commissioning and initial operation of the W7-X neutral beam injection heating system
, 2020 The first, of two planned, neutral beam injectors for the stellarator Wendelstein 7-X (W7-X) was commissioned for and participated in the experimental campaign (OP1.2b) from July to October 2018.
P. McNeely +15 more
semanticscholar +1 more source
Real-time capable modeling of neutral beam injection on NSTX-U using neural networks
Nuclear Fusion, 2019 A new model of heating, current drive, torque and other effects of neutral beam injection on NSTX-U that uses neural networks has been developed. The model has been trained and tested on the results of the Monte Carlo code NUBEAM for the database of ...
M. Boyer, S. Kaye, K. Erickson
semanticscholar +1 more source
PLT neutral beam injection systems [PDF]
, 1979 A brief description of the Princeton Large Torus (PLT) neutral beam injection system is given and its performance characteristics are outlined. A detailed operational procedure is included, as are some tips on troubleshooting. Proper operation of the source is shown to be a crucial factor in system performance.
Menon, M. M., Barber, G. C., Blue, C. W.
openaire +2 more sources
Thermodynamic simulation and structural optimization of the collimator in the drift duct of EAST-NBI
Nuclear Engineering and Technology, 2022 The collimator is one of the high-heat-flux components used to avoid a series of vacuum and thermal problems. In this paper, the heat load distribution throughout the collimator is first calculated through experimental data, and a transient thermodynamic
Ning Tang +7 more
doaj +1 more source
Advances in Mechanical Engineering, 2017 An efficient and accurate thermo-fluid-coupled analysis is the basis of structure design and optimization for high-heat-flux components in neutral beam injection system of Experimental Advanced Superconducting Tokamak and has an important significance of
Ling Tao, Chundong Hu, Yuanlai Xie
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Nuclear Fusion, 2023 This paper presents the first results from the analysis of Balmer-alpha spectra at Wendelstein 7-X which contain the broad charge exchange emission from fast-ions.
Peter Zs. Poloskei +9 more
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The conceptual design of NNBI electrostatic residual ion dump for fusion reactor
He jishu, 2022 BackgroundNegative ion source based on neutral beam injector is an important auxiliary heating and current driving system for the China Fusion Experimental Test Reactor (CFETR).
LI Chao +6 more
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