Results 81 to 90 of about 40,757 (206)

Plasma parameter control for efficient operation of volume produced RF H- ion source [PDF]

, 2014
학위논문 (박사)-- 서울대학교 대학원 : 에너지시스템공학부, 2014. 2. 황용석.In spite of its better stability for long-time operation than the cesiated negative ion source that suffers from difficulty of cesium injection control, the volume-produced RF (radio-frequency) negative ion
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Assessment of plasma uniformity in the extraction region of an RF-driven negative ion source for CRAFT NNBI

Nuclear Fusion
The uniformity of beam, for large RF negative ion source, is closely related to the plasma uniformity in the extraction region. The six electrostatic probes were installed above the plasma grid (PG) 5 mm to evaluate the plasma uniformity.
Xufeng Peng, Yongjian Xu, Yufan Li, Jianglong Wei, Guangyong Mei, Bo Liu, YuWen Yang, Na Wang, Junwei Xie, Yahong Xie, Lizhen Liang, Bin Wu   +11 more
doaj   +1 more source

Ion bombardment in RF photoguns [PDF]

, 2009
A linac-ring eRHIC design requires a high-intensity CW source of polarized electrons. An SRF gun is viable option that can deliver the required beam.
Litvinenko, V. N., Kayran, D., Pozdeyev, E.   +2 more
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RF Plasma modeling of the Linac4 H− ion source

, 2013
This study focuses on the modelling of the ICP RF-plasma in the Linac4 H− ion source currently being constructed at CERN. A self-consistent model of the plasma dynamics with the RF electromagnetic field has been developed by a PIC-MCC method.
Ohta, M, M. Ohta, J. Lettry, Mattei, S, Schmitzer, C, A. Hatayama, Y. Kawamura, Hatayama, A, Yasumoto, M, M. Yasumoto, Kawamura, Y, Lettry, J, S. Mattei, C. Schmitzer   +13 more
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Neutral beams at ROBIN with electrostatic ion separator

Nuclear Fusion
The RF Operated Beam source in India for Negative ions (ROBIN), a single-driver RF-based negative hydrogen ion (H ^- ) source test bed located at the Institute for Plasma Research, Gandhinagar, has been upgraded to enable neutral beam operations. It is a
K. Pandya, M.J. Singh, M. Bhuyan, M. Vuppugalla, R.K. Yadav, A. Gahlaut, H. Mistri, B. Prajapat, R. Pandey, S. Dash, M. Bandyopadhyay, J. Bhagora, V. Prajapati, H. Tyagi, A. Chakraborty   +14 more
doaj   +1 more source

Optimization of an RF driven H sup minus ion source

, 1991
A radio-frequency driven multicusp source has recently been developed to generate volume-produced H{sup {minus}} ion beams with extracted current density higher than 200 mA/cm{sup 2}.
Kunkel, W. B., McDonald, D. S., Leung, K. N., Hauck, C. A., DiVergilio, W. F.   +4 more
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Direct 10 GHz rf feedthrough plasma device with the NANOGAN III ion source for SPIRAL

, 2005
International audienceA new system has been designed to inject the 10 GHz rf power in the NANOGAN III ion source dedicated to the ionization of exotic atoms from the production target of the SPIRAL system at GANIL.
P. Jardin, M. G. Saint-Laurent, Huet-Equilbec, C., P. Leherissier, C. Barué, F. Lemagnen, C. Canet, Barué, C., Dupuis, M., Lecesne, N., Lehérissier, P., Pacquet, J.Y., M. Dubois, Villari, A.C.C., M. Dupuis, Cornell, J., Leroy, R., Canet, C., R. Leroy, G. Gaubert, N. Lecesne, Eléon, C., C. Huet-Equilbec, J. Y. Pacquet, Gaubert, G., Flambard, J.L., Saint-Laurent, M.G., Jardin, P., J. L. Flambard, C. Eleon, J. Cornell, Lemagnen, F., Dubois, M., A. C. C. Villari   +33 more
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100 seconds and megawatt negative ion beam accelerations at the CRAFT NNBI test facility

Nuclear Fusion
A promising negative-ion-based neutral beam injection (NNBI) system should achieve high energy, high power and long pulse simultaneously for the plasma heating and current drive in the large-scale fusion devices. A NNBI test facility has been constructed
Jianglong Wei, Yuwen Yang, Wei Liu, Yongjian Xu, Yuchen Qu, Yuming Gu, Yahong Xie, Chundong Hu, Lizhen Liang   +8 more
doaj   +1 more source

Precise micromotion compensation of a tilted ion chain

Frontiers in Quantum Science and Technology
Excess micromotion can be a substantial source of errors in trapped-ion based quantum processors and clocks due to the sensitivity of the internal states of the ion to external fields and motion.
Craig W. Hogle, Ashlyn D. Burch, Jonathan D. Sterk, Matthew N. H. Chow, Megan Ivory, Daniel S. Lobser, Peter Maunz, Jay Van Der Wall, Christopher G. Yale, Susan M. Clark, Daniel Stick, Melissa C. Revelle   +11 more
doaj   +1 more source

RF PLASMA SOURCE FOR A HEAVY ION FUSION INJECTOR

, 2004
We are developing high-current ion sources for Heavy Ion Fusion applications. Our proposed RF plasma source starts with an array of high current density mini-beamlets (of a few mA each at {approx}100 mA/cm{sup 2}) that are kept separated from each other ...
Halaxi, E, Kwan, J W, Waldron, W L, Grote, D P, Westenskow, G A   +4 more
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