Results 21 to 30 of about 196 (116)
Power Transfer Efficiency in The Inductive RF Ion Source [PDF]
Журнал нано- та електронної фізики, 2010 A radio-frequency inductive ion source without magnetic field was analyzed at driving frequency of 27,12 MHz. Diameter of the source discharge chamber is 3 cm, length is 8 cm.
V. Voznyi
doaj
Mini rf-driven ion sources for focused ion beam systems
Review of Scientific Instruments, 2003 Mini rf-driven ion sources with 1.2 cm and 1.5 cm inner chamber diameter have been developed at Lawrence Berkeley National Laboratory. Several gas species have been tested including argon, krypton, and hydrogen. These mini ion sources operate in inductively coupled mode and are capable of generating high current density ion beams at tens of watts of ...
Jiang, X. +3 more
openaire +2 more sources
Nuclear FusionThe excitation frequency is a critical parameter for the radio frequency (RF) ion source employed in the Neutral Beam Injection (NBI) system for the magnetic confinement fusion devices.
Na Wang +12 more
doaj +1 more source
Negative ion research at the Culham Centre for Fusion Energy (CCFE)
New Journal of Physics, 2016 A summary of negative ion development work being presently undertaken at the Culham Centre for Fusion Energy is given. The small negative ion facility has an RF driven volume ion source with beam extraction at energies up to 30 keV. The extracted beam of
R McAdams +5 more
doaj +1 more source
New Journal of Physics, 2016 In volume production H ^− ion sources, control of electron temperature is essential due to its close correlation with the generation of vibrationally-excited hydrogen molecules in the driver region as well as the generation of H ^− ions by dissociative ...
K J Chung +4 more
doaj +1 more source
Design of NNBI RF power source output power control system
He jishu, 2023 BackgroundWith the development of negative ion based neutral beam injection system (NNBI) for China fusion engineering test reactor (CFETR), the output power control system of its supporting the radio frequency (RF) power source is one of the key ...
WANG Zhao +4 more
doaj +1 more source
Design of the RF ion source for the ITER NBI [PDF]
Fusion Engineering and Design, 2007 Abstract A radio frequency (RF) driven negative ion source has been designed for the ITER neutral beam injectors, as an alternative to the traditional arc driven solution. The main advantage of this technology is to avoid the presence of the filaments, that require periodic maintenance and consequently frequent shutdowns.
Marcuzzi, D. +5 more
openaire +3 more sources
Response of negative ion beamlet width and axis deflection to RF field in beam extraction region
Scientific ReportsBeam-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 +9 more
doaj +1 more source
Emittance of a Low-Power RF Ion Source with a Micrometer-Scale Extraction Aperture
East European Journal of PhysicsThe concept of a compact nuclear microprobe is based on specialized ion sources with beam currents not exceeding a few nanoamperes and a small energy spread.
Vitalii I. Voznyi +4 more
doaj +1 more source
Towards large and powerful radio frequency driven negative ion sources for fusion
New Journal of Physics, 2017 The ITER neutral beam system will be equipped with radio-frequency (RF) negative ion sources, based on the IPP Garching prototype source design. Up to 100 kW at 1 MHz is coupled to the RF driver, out of which the plasma expands into the main source ...
B Heinemann +9 more
doaj +1 more source