Results 21 to 30 of about 1,118,371 (206)

Status of the heavy ion beam probe system in the Large Helical Device [PDF]

, 2008
A heavy ion beam probe (HIBP) system has been installed into the Large Helical Device (LHD) to measure the spatial profile of the plasma potential and density fluctuations.
A. Shimizu, Firsov, H. Nakano, LHD Experimental Group, , M. Nishiura, M. Wada, R. K. Janev, S. Kato, T. Ido, T. Kato, V. P. Shevelko, Y. Hamada   +11 more
core   +2 more sources

Characteristics of negative ion generation in large area negative ion source based on cavity ring-down spectroscopy

He jishu
BackgroundThe neutral beam injection system (NBI) has the highest heating efficiency and the clearest physical mechanism, so it has become one of the main auxiliary heating methods used in the world's large magnetic confinement controlled thermonuclear ...
ZHU Tengsai, LIANG Lizhen, XIE Yahong, CAO Zhengkun, PENG Xufeng, HU Chundong   +5 more
doaj   +1 more source

Tomographic diagnostic of the hydrogen beam from a negative ion source

Physical Review Special Topics. Accelerators and Beams, 2011
In this paper the tomographic diagnostic developed to characterize the 2D density distribution of a particle beam from a negative ion source is described.
M. Agostini, M. Brombin, G. Serianni, R. Pasqualotto   +3 more
doaj   +1 more source

Ion sources for high-power hadron accelerators

, 2013
Ion sources are a critical component of all particle accelerators. They create the initial beam that is accelerated by the rest of the machine. This paper will introduce the many methods of creating a beam for high-power hadron accelerators.
Faircloth, Dan
core   +1 more source

Development of Spectrally selective Imaging System for Negative Hydrogen Ion Source [PDF]

, 2014
A spectrally selective imaging system has been developed to obtain a distribution of Hα emissions at the extraction region in a hydrogen negative ion source.
H. Nakano, K. Ikeda, K. Nagaoka, K. Tsumori, M. Kisaki, M. Osakabe, O. Kaneko, Y. Takeiri   +7 more
core   +2 more sources

Study of the plasma near the plasma electrode by probes and photodetachment in ECR-driven negative ion source [PDF]

, 2008
Contributions to the conference will be published, following peer review, in the American Institute of Physics conference proceedings.International audienceThe effect of the plasma electrode bias on the plasma characteristics near the extraction aperture
Bacal, M., Béchu, Stéphane, Pelletier, J., Svarnas, P.   +3 more
core   +3 more sources

Correlation of source parameters and beam properties in the early operation of the full size ITER negative ion beam source

Nuclear Fusion
One of the requirements of Heating and current drive Neutral Beam injectors for ITER is a beam homogeneity greater than 90%, to achieve an optimal beam transmission while keeping the heat load consistently low on the acceleration electrodes.
M. Ugoletti, M. Agostini, C. Poggi, E. Sartori, G. Serianni, B. Zaniol   +5 more
doaj   +1 more source

RF and Microwave Ion Sources Study at Institute of Modern Physics

Plasma, 2021
Intense ion beam production is of high importance for various versatile applications from accelerator injectors to secondary ion mass spectrometry (SIMS). For these purposes, different types of ion beams are needed and, accordingly, the optimum plasma to
Qian Y. Jin, Yu G. Liu, Yang Zhou, Qi Wu, Yao J. Zhai, Liang T. Sun   +5 more
doaj   +1 more source

Response of negative ion beamlet width and axis deflection to RF field in beam extraction region

Scientific Reports
Beam-divergence characteristics of single negative ion beamlet have been experimentally investigated with a superimposition of a controlled perturbation of a radio frequency wave (RF) field in a filament-arc discharge negative ion source. Oscillations of
Kenichi Nagaoka, Haruhisa Nakano, Taiga Hamajima, Ryoya Nakamoto, Katsuyoshi Tsumori, Masaki Osakabe, Masashi Kisaki, Kenji Miyamoto, Kazunori Takahashi, Ursel Fantz   +9 more
doaj   +1 more source

Molecular dynamic simulation of Cs corrosion in Cs oven for negative ion source applications

AIP Advances, 2022
Molecular dynamic simulation is used to simulate the corrosion process of Fe or Ni in liquid Cs by Large-scale Atomic/Molecular Massively Parallel Simulator.
Yiqin Zhu, Jun Hu, Xin Zhang, Jie Huang, Yuhong Xu, Guangjiu Lei, Shaofei Geng, Heng Li, Zilin Cui, Xiaolong Li, Yuxiang Ni, Haifeng Liu, Xianqu Wang, Hai Liu, Jun Cheng, Junfeng Shen, Changjian Tang   +16 more
doaj   +1 more source