Results 51 to 60 of about 1,118,371 (206)

Helicon wave-generated plasmas for negative ion beams for fusion

EPJ Web of Conferences, 2017
In the next generation of fusion reactors, such as DEMO, neutral beam injectors (NBIs) of high energy (0.8-1 MeV) deuterium atoms with high wall-plug efficiency (>50%) will be required to reach burning plasma conditions and to provide a significant ...
Furno Ivo, Agnello Riccardo, Fantz U., Howling Alan, Jacquier Remy, Marini Claudio, Plyushchev Gennady, Guittienne Philippe, Simonin Alain   +8 more
doaj   +1 more source

Production and analysis of multiply charged negative ions by liquid atmospheric pressure matrix-assisted laser desorption/ionization mass spectrometry [PDF]

, 2020
RATIONALE: Liquid AP-MALDI has been shown to enable the production of ESI-like multiply charged analyte ions with little sample consumption and long-lasting, robust ion yield for sensitive analysis by mass spectrometry. Previous reports have focused on
Brown, Jeffery M., Cramer, Rainer, Hale, Oliver J., Morris, Michael, Ryumin, Pavel   +4 more
core   +1 more source

Progress of CRAFT negative ion source neutral beam injection test facility

Nuclear Fusion
The Comprehensive Research Facility for Fusion Technology (CRAFT) is a national large research infrastructure in China. CRAFT aims to develop the key technologies for future fusion reactor and the negative ion source neutral beam injection (NNBI) is one ...
Jianglong Wei, Wei Liu, Yongjian Xu, Yuming Gu, Yahong Xie, Na Wang, Bo Liu, Dmitrii Stepanov, Shengmin Pan, Zhigang Zhu, Bin Guo, Xiancai Meng, Xufeng Peng, Hao Wu, Liang Zhang, Chundong Hu, Lizhen Liang, CRAFT NNBI Team   +17 more
doaj   +1 more source

Recent Negative Ion Source Developments [PDF]

IEEE Transactions on Nuclear Science, 1979
This report describes recent results obtained from studies associated with the development of negative ion sources which utilize sputtering in a diffuse cesium plasma as a means of ion beam generation. Data are presented which relate negative ion yield and important operational parameters such as cesium oven temperature and sputter probe voltage from ...
openaire   +1 more source

Conceptual design of the beam source for the DEMO Neutral Beam Injectors

New Journal of Physics, 2016
DEMO (DEMOnstration Fusion Power Plant) is a proposed nuclear fusion power plant that is intended to follow the ITER experimental reactor. The main goal of DEMO will be to demonstrate the possibility to produce electric energy from the fusion reaction ...
P Sonato, P Agostinetti, U Fantz, T Franke, I Furno, A Simonin, M Q Tran   +6 more
doaj   +1 more source

Negative-ion source applications (invited) [PDF]

Review of Scientific Instruments, 2008
In this paper heavy negative-ion sources which we developed and their applications for materials science are reviewed. Heavy negative ions can be effectively produced by the ejection of a sputtered atom through the optimally cesiated surface of target with a low work function.
openaire   +1 more source

Experimental evaluation of a negative-ion source for a heavy-ion fusion negative-ion driver [PDF]

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2005
Abstract Negative halogen ions have recently been proposed as a possible alternative to positive ions for heavy-ion fusion drivers because electron accumulation would not be a problem in the accelerator, and if desired, the beams could be photodetached to neutrals (Nucl. Instr. and Meth. A 464 (2001) 315; Fusion Sci. Technol.
Grisham, L. R., Hahto, S. K., Hahto, S. T., Kwan, J. W., Leung, K. N.   +4 more
openaire   +2 more sources

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

Hard photon flow and photon-photon correlation in intermediate energy heavy-ion collisions

, 2012
Hard photons emitted from energetic heavy ion collisions are very interesting since they do not experience nuclear interaction, and therefore they are useful to explore properties of nuclear matter.
D. Q. Fang, G. H. Liu, H. W. Wang, J. D. Jackson, J. Łukasik, R. Hanbury-Brown, W. D. Tian, W. Guo, W. Q. Shen, X. Z. Cai, Y. G. Ma   +10 more
core   +1 more source

Research on Negative Helium Ion Beam Generation Technology

Yuanzineng kexue jishu
Tandem accelerator can generate MeV-level positive ion beam, of which He ion beam can be used for experimental research and industrial applications such as ion beam analysis and ion implantation, which is an indispensable ion beam for tandem accelerator.
CHEN Haonan1, 2, CUI Baoqun1, 2, TANG Bing1, 2, CHEN Lihua1, 2, MA Ruigang1, 2, MA Yingjun1, 2, MA Xie1, 2, ZHANG Yifan1, 2, ZHAO Jiange1, 2, WANG Yunfeng1, 2, YANG Chao1, 2, YU Rongkai1, 2
doaj   +1 more source