Results 81 to 90 of about 89,460 (299)

Experimental and simulation study on the backstreaming positive ions on the quarter-size negative ion source for CRAFT NNBI test facility

Nuclear Engineering and Technology
As an effective methods of plasma heating, neutral beam injection (NBI) systems based on negative hydrogen ion sources will be utilized in future magnetic-confinement nuclear fusion experiments.
Yongjian Xu, Yuwen Yang, Jianglong Wei, Ling Yu, Wen Deng, Rixin Wang, Yuming Gu, Chundong Hu, Yahong Xie   +8 more
doaj   +1 more source

Plasma equilibrium in diamagnetic trap with neutral beam injection

Journal of Plasma Physics
This paper presents a theoretical model of plasma equilibrium in the diamagnetic confinement mode in an axisymmetric mirror device with neutral beam injection. The hot ionic component is described within the framework of the kinetic theory, since the Larmor radius of the injected ions appears to be comparable to or even larger than the characteristic ...
Mikhail S. Khristo, Alexei D. Beklemishev   +1 more
openaire   +2 more sources

Asymmetric Lamellar Templating of the Perovskite/C60 Interface for Scalable Inverted Perovskite Photovoltaics

Advanced Materials, EarlyView.
Asymmetric lamellar templating at the perovskite/C60 interface is achieved using a laterally polarized indole spacer. Surface anchoring and Ind–Ind assembly form a π‐rich lamellar interphase that supports uniform C60 contact formation, suppresses recombination, preserves electron extraction, and enables certified high‐efficiency cells and modules with ...
Taeyoon Ki, Jong‐Guk Ahn, Sangcho Kim, Sangjin Kim, Min‐Ho Lee, In‐Wook Hwang, Jinju Jeong, Soobin Shim, Jaeboong Ahn, Jun Hong Park, Seungjin Lee, Jung‐Yong Lee, Yousoo Kim, Ju‐Hyeon Kim, Hongkyu Kang, Sukwon Hong, Kwanghee Lee   +16 more
wiley   +1 more source

Investigation of double frequency fishbone in EAST with neutral beam injection

Nuclear Fusion
In the EAST experiments with neutral beam injection and at a low electron density, fishbone instabilities characterized by mode numbers m / n = 1/1, 2/2 have been observed. The simultaneous growth of these modes, particularly m / n = 1/1 and m / n = 2/2,
Wei Shen, Liqing Xu, Zhiyong Qiu, Yan Chao, Yifeng Wang, Yuqi Chu, Jianwen Liu, Baolong Hao, Ming Xu, Yinfei Jin, Guoqiang Zhong, Zhihong Kuang, Shengfa Wu, the EAST Team   +13 more
doaj   +1 more source

Diffusion of a plasma subject to neutral beam injection [PDF]

, 1986
Two-dimensional numerical plasma simulations have been carried out in a uniform magnetic field to study the effects of neutral beam injection on plasma diffusion. Neutral beams injected across a magnetic field are assumed to be ionized by various ionization processes in a plasma. It is found that the suprathermal convective motion of a plasma generated
Okuda, H., Hiroe, S.
openaire   +2 more sources

Universal Strategy for Phase‐Selective Synthesis of Monolayer TMDs via Colloidal Chemistry

Advanced Materials, EarlyView.
ABSTRACT Colloidal synthesis of monolayer transition metal dichalcogenides (TMDs) remains challenging regarding uniform size, thickness, and crystalline phase. While significant progress has been made in phase engineering, a unified chemical strategy for on‐demand selection of both 2H and 1T′ phases across multiple TMD systems within a single chemical ...
Hoon Ju Lee, Weiguang Yang, Dae Young Park, Mrinal Kanti Kabiraz, Benoit Mahler, Hyeon Suk Shin   +5 more
wiley   +1 more source

Fabrication of TiN/TiO2 Nanotube‐Based Heterostructure for Hydrogen Sensing Applications

Advanced Materials Interfaces, EarlyView.
A hydrogen sensor based on titanium dioxide nanotubes coated with titanium nitride has been developed. The coating process causes a mixed titanium oxynitride layer to form, which improves the sensor performance. Sensor response R depends on the TiN thickness and is not degraded after 7 days in air.
Esme Isik, Dominic Sterland, Marc Walker, Necmettin Kilinc, Gavin R. Bell   +4 more
wiley   +1 more source

Conceptional design of photoneutralization test system for negative ion-based neutral beam injection

Nuclear Engineering and Technology
Neutral beam injection is one of the effective heating methods in the field of magnetic confinement fusion, and neutralization is the most crucial link in the case of negative ions.
Hui-hui Hong, Li-zhen Liang, Yuan-lai Xie, Qian-xu Wang, Zhuo Pan, Yao Jiang   +5 more
doaj   +1 more source

Energy composition of high-energy neutral beams on the COMPASS tokamak

Nukleonika, 2016
The COMPASS tokamak is equipped with two identical neutral beam injectors (NBI) for additional plasma heating. They provide a beam of deuterium atoms with a power of up to ~(2 × 300) kW.
Mitosinkova Klara, Stöckel Jan, Varju Jozef, Weinzettl Vladimir   +3 more
doaj   +1 more source

Stable Spheromaks Sustained by Neutral Beam Injection

Journal of Fusion Energy, 2008
It is shown that spheromak equilibria, stable at zero-beta but departing from the Taylor state, could be sustained by non-inductive current drive at acceptable power levels. Stability to both ideal MHD and tearing modes is verified using the NIMROD code for linear stability analysis.
T. K. Fowler, R. Jayakumar, H. S. McLean
openaire   +2 more sources