Results 1 to 10 of about 309,738 (293)

Simulations of Beam Quality in a 13 MeV PET Cyclotron [PDF]

open access: yesAtom Indonesia, 2015
Simulation of the trajectories of negative hydrogen ion (H−) beam in a 13 MeV PET cyclotron (DECY-13) were carried out by using the Runge-Kutta (RK4) approximation method and Scilab 5.4.1.
A. Pramudita, E. Mulyani, I.A. Kudus
doaj   +5 more sources

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

open access: yesScientific 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   +9 more
doaj   +2 more sources

Inductive Coupling Discharge Characteristics of a 10-cm Dual-Stage 4-Grid Radiofrequency Ion Thruster [PDF]

open access: yesJournal of Aerospace Technology and Management, 2021
In this study, the numerical simulations are used to simulate the discharge process of a 10-cm dual-stage 4-grid (DS4G) radiofrequency (RF) ion thruster, and the effects of RF coil turns, and electrical parameters on the key plasma parameters inside the ...
Yanxu Pu   +7 more
doaj   +3 more sources

rf driven multicusp H− ion source [PDF]

open access: yesReview of Scientific Instruments, 1991
An rf driven multicusp source capable of generating 1-ms H− beam pulses with a repetition rate as high as 150 Hz has been developed. This source can be operated with a filament or other types of starter. There is almost no lifetime limitation and a clean plasma can be maintained for a long period of operation.
Leung, K N   +7 more
openaire   +3 more sources

RF synchronized short pulse laser ion source [PDF]

open access: yesReview of Scientific Instruments, 2015
A laser ion source that produces shortly bunched ion beam is proposed. In this ion source, ions are extracted immediately after the generation of laser plasma by an ultra-short pulse laser before its diffusion. The ions can be injected into radio frequency (RF) accelerating bucket of a subsequent accelerator.
Yasuhiro, Fuwa   +7 more
openaire   +2 more sources

Analysis of equivalent impedance characteristics of a high power RF ion source driver

open access: yesHe jishu, 2021
BackgroundThe ion source is one of the key components of the neutral beam injection system. Radio frequency (RF) ion source has the advantages of long life time, easy maintenance and long pules operation, which make it the main alternative source for the
YANG Puqiong   +7 more
doaj   +1 more source

Characterization of a 2 MHz-radiofrequency-driven magnetically expanding plasma source

open access: yesAIP Advances, 2022
A radio frequency (rf) plasma source is operated at 2 MHz under an expanding magnetic field. The source consists of a 14-cm-diameter and 25-cm-long source tube wound by a seven-turn rf loop antenna powered via an impedance matching circuit. The efficient
Thanatith Nakul, Kazunori Takahashi
doaj   +1 more source

Automatically Controlled Frequency-Tunable rf Plasma Thruster: Ion Beam and Thrust Measurements

open access: yesFrontiers in Physics, 2021
A fast and automatically controlled frequency-tunable radiofrequency (rf) system is installed in an rf plasma thruster consisting of a stepped-diameter insulator source tube wound by a single-turn loop antenna and a solenoid providing a magnetic nozzle ...
Kazunori Takahashi   +2 more
doaj   +1 more source

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