Results 51 to 60 of about 40,757 (206)

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

Radiofrequency and 2.45 GHz electron cyclotron resonance H− volume production ion sources

New Journal of Physics, 2016
The volume production of negative hydrogen ions ( ${{\rm{H}}}^{-}$ ) in plasma ion sources is based on dissociative electron attachment (DEA) to rovibrationally excited hydrogen molecules (H _2 ), which is a two-step process requiring both, hot electrons
O Tarvainen, S X Peng
doaj   +1 more source

Development of ion sources for materials processing in China

, 2006
This article reviews the development of ion sources for materials processing and the progress of commercial product of ion sources in China. The various ion-beam processing and the relative needs to ion sources are mentioned and discussed, such as ion ...
Ren, XT, Zhao, HW, H. W. Zhao, Zhao, WJ, X. T. Ren, W. J. Zhao   +5 more
core   +1 more source

Investigation of a miniature differential ion thruster

, 2011
Complex space missions involving formation flying or drag compensation are driving the need for spacecraft propulsion systems capable of providing low but also highly accurate thrust levels.
Collingwood, C., Collingwood, Cheryl
core  

Optimizing the ITER NBI ion source by dedicated RF driver test stand

The experimental fusion reactor ITER will feature two (or three) heating neutral beam injectors (NBI) capable of delivering 33(or 50) MW of power into the plasma.
Sartori, E., Casagrande, R., Laterza, B., Tollin, M., Rigoni-Garola, A., Pimazzoni, A., Sheperd, A., López-Bruna, D., Poggi, C., Zuin, E., Romanato, L., Zagórski, R., Mario, I., Agnello, R., Rossetto, F., Sonato, P., Aprile, D., Fellin, F., Taliercio, C., Candeloro, V., Battistella, M., Segalini, B., Zella, D., Berton, G., Franchin, L., Friso, D., Pasqualotto, R., Agostini, M., Dal Bello, S., Grando, L., Carraro, M., Fincato, M., Magagna, M., Zucchetti, S., Boldrin, M., Zerbetto, E., Brombin, M., Ugoletti, M., Baseggio, L., Pouradier-Duteil, B., Cinetto, P., Denizeau, S., Zaupa, M., Pavei, M., Toigo, V., Zaniol, B., Ravarotto, D., Vignando, M., Serianni, G., Passalacqua, G., Maniero, M., Barbato, P., Marconato, N., La Rosa, A., Fadone, M., Delogu, R.   +55 more
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RF plasma source for heavy ion beam charge neutralization [PDF]

, 2002
Highly ionized plasmas are being used as a medium for charge neutralizing heavy ion beams in order to focus the ion beam to a small spot size. A radio frequency (RF) plasma source has been built at the Princeton Plasma Physics Laboratory (PPPL) in ...
Yu, Simon S., Logan, B. Grant, Grisham, Larry, Davidson, Ronald C., Kolchin, Pavel, Efthimion, Philip C., Gilson, Erik   +6 more
core  

Electronic spectroscopy of cold ions in a radio-frequency trap [PDF]

, 2010
The low density of ions in mass spectrometers generally precludes direct absorption measurements. The spectrum of ions can nonetheless be obtained by using resonance two-color photofragmentation or multiphoton photofragmentation techniques.
Rudnev, Vitaly S.
core   +1 more source

Installation of Spectrally Selective Imaging System in RF Negative Ion Source

, 2015
0000-0001-9781-231XA spectrally selective imaging system has been installed in the RF negative ion source in the International Thermonuclear Experimental Reactor-relevant negative ion beam test facility ELISE (Extraction from a Large Ion Source ...
KANEKO, Osamu, FANTZ, U., KISAKI, Masashi, NAKANO, Haruhisa, OSAKABE, Masaki, TAKEIRI, Yasuhiko, Wünderlich, D., IKEDA, Katsunori, Heinemann, B., NAGAOKA, Kenichi, Geng, S., NAGAOKA, Ken-ichi, TSUMORI, Katsuyoshi   +12 more
core   +2 more sources

RF ELECTROMAGNETIC FIELD ABSORPTION INSIDE HELICON ION SOURCE IN NONAXIAL MAGNETIC FIELD

East European Journal of Physics, 2015
The paper studies integral characteristics and one-dimensional distribution of RF power absorption in a helicon plasma with external magnetic field directed at an angle to a plasma plane. Two kinds of working gas heli and hydrogen are considered.
O. V. Alexenko, V. I. Miroshnichenko, V. I. Voznyi   +2 more
doaj  

Development of plasma light monitoring system for high-power radio frequency negative ion source

He jishu
BackgroundNegative ion sources driven by radio frequency (RF) waves have become the preferred solution for future neutral beam injection systems.PurposeThis study aims to monitor the plasma discharge state of each exciter of a high power RF negative ion ...
LI Yufan, YANG Puqiong, WEI Jianglong, LIU Bo, PENG Xufeng, YANG Yuwen, LI Yuqian, XIE Yuanlai   +7 more
doaj   +1 more source