Results 31 to 40 of about 89,460 (299)

First Prototype of a Cesium Oven Design for Negative-Ion-Source-Based Neutral Beam Injector at ASIPP

Energies, 2022
The RF-driven negative ion source has a steady state characteristic and will be a promising ion source for neutral beam injection (NBI) in the future.
Wei Liu, Bo Liu, Yuanzhe Zhao, Qinglong Cui, Chundong Hu, Lizhen Liang   +5 more
doaj   +1 more source

Study on transmission efficiency of 7 MW neutral beam injector for HL-3 tokamak

He jishu
BackgroundNeutral beam injection heating is a very effective auxiliary heating method in magnetic confinement fusion experiment. The built 5 MW neutral beam injection plays an important role in the H-mode operation with 1 MA plasma current of HL-3 ...
YANG Xianfu, WEI Huiling, WAN Yinxiang, ZHOU Bowen, YU Peixuan, LUO Huaiyu, ZHOU Hongxia, TANG Peiqin, GENG Shaofei   +8 more
doaj   +1 more source

Analytical and Statistical Modelling of a Fast Ion Source Formed by Injection of a Neutral Beam into Magnetically Confined Plasma

Atoms, 2023
Mathematical modelling of heating and current drive as well as yields and distributions of fusion products in a magnetically confined plasma subject to neutral beam injection requires, in turn, modelling of distributions of fast ions, which is a complex ...
Pavel Goncharov
doaj   +1 more source

Interpretation of suprathermal emission at deuteron cyclotron harmonics from deuterium plasmas heated by neutral beam injection in the KSTAR tokamak

Nuclear Fusion, 2019
Intense bursts of suprathermal radiation, with spectral peaks at frequencies corresponding to the deuteron cyclotron frequency in the outer midplane edge region, are often detected from deuterium plasmas in the KSTAR tokamak that are heated by tangential
B. Chapman, R. Dendy, S. Chapman, K. McClements, G. Yun, S. Thatipamula, M.H. Kim   +6 more
semanticscholar   +1 more source

Neutralisation and transport of negative ion beams: physics and diagnostics

New Journal of Physics, 2017
Neutral beam injection is one of the most important methods of plasma heating in thermonuclear fusion experiments, allowing the attainment of fusion conditions as well as driving the plasma current.
G Serianni, P Agostinetti, M Agostini, V Antoni, D Aprile, C Baltador, M Barbisan, M Brombin, M Cavenago, G Chitarin, M Dalla Palma, R Delogu, F Fellin, N Fonnesu, N Marconato, R Pasqualotto, A Pimazzoni, E Sartori, S Spagnolo, M Spolaore, P Veltri, B Zaniol, M Zaupa   +22 more
doaj   +1 more source

Feasibility Study of Neutral Beam Injection on Chinese First Quasi-Axisymmetric Stellarator (CFQS)

Plasma and Fusion Research, 2019
Physics and engineering designs of Chinese First Quasi-axisymmetric Stellarator (CFQS) have been performed under the collaboration between National Institute for Fusion Science and Southwest Jiaotong University.
K. Ogawa, R. Seki, H. Yamaguchi, S. Murakami, M. Isobe, A. Shimizu, S. Kinoshita, S. Okamura, Haifeng Liu, Yuhong Xu, Cfqs Team   +10 more
semanticscholar   +1 more source

Development of HVDC Gas-Insulated Components for the Power Supply of Neutral Beam Injectors

IEEE Access, 2023
The development of High Voltage Direct Current Gas-Insulated components that will be employed for the power supply of Neutral Beam Injectors, requires specific numerical tools to analyze the electric field distribution, with the purpose of supporting the
Francesco Lucchini, Nicolo Marconato
doaj   +1 more source

Numerical study of neutral beam injection prompt loss at KSTAR poloidal limiters

Physics of Plasmas, 2019
We use a newly developed simulation tool to numerically study fast-ion loading on plasma-facing components (PFCs) at the Korea Superconducting Tokamak Advanced Research facility in the high-poloidal-β plasma operation regime.
T. Rhee, K. Shinohara, Hyun-Seok Kim, J. Kwon, Y. Jeon, Junghee Kim, S. Hahn, J. Kwak, Sonjong Wang, B. Park, B. Na   +10 more
semanticscholar   +1 more source

Is an Apple an Orange? A Large Language Model Benchmark for Candidate Term Extraction and Subclass Decisions Against Upper Ontologies in Engineering and Materials Science

Advanced Engineering Materials, EarlyView.
Building machine‐readable vocabularies for materials science is slow, expert‐driven work. This study benchmarks 13 large language models on two of its first steps: finding candidate terms in engineering articles and deciding where they belong in a class hierarchy.
Thomas Bjarsch, Maximilian Holland, Klaus Drechsler, Johannes Schilp   +3 more
wiley   +1 more source

Two Dimensional Simulation of Beam Injection Into Neutral Plasma [PDF]

Journal of Astronomy and Space Sciences, 1990
Two dimensional electrostatic model was used to investigate the interactions between bean electron and neutral plasma. It was found that results heavily depend on the beam density.
Jong Ho Seon, Kyoung Wook Min
doaj