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Inductive Coupling Discharge Characteristics of a 10-cm Dual-Stage 4-Grid Radiofrequency Ion Thruster [PDF]
Journal 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
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rf driven multicusp H− ion source [PDF]
Review 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
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Analysis of equivalent impedance characteristics of a high power RF ion source driver
He 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
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Characterization of a 2 MHz-radiofrequency-driven magnetically expanding plasma source
AIP 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
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Automatically Controlled Frequency-Tunable rf Plasma Thruster: Ion Beam and Thrust Measurements
Frontiers 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
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RF and Microwave Ion Sources Study at Institute of Modern Physics
Plasma, 2021 Intense ion beam production is of high importance for various versatile applications from accelerator injectors to secondary ion mass spectrometry (SIMS). For these purposes, different types of ion beams are needed and, accordingly, the optimum plasma to
Qian Y. Jin +5 more
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Characterization of an RF-driven plasma ion source for heavy ion fusion [PDF]
Proceedings of the 2003 Bipolar/BiCMOS Circuits and Technology Meeting (IEEE Cat. No.03CH37440), 2004 We are testing a high-current-density high-brightness Argon-Ion Source for Heavy Ion Fusion applications. The 100-kV 20-{micro}s source has produced up to 5 mA of Ar{sup +} in a single beamlet. The extraction current density is 100 mA/cm2. We have measured the emittance of the beamlet, and the fraction of Ar{sup ++} ions under several operating ...
Westenskow, G A +3 more
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Chemical ionization quadrupole mass spectrometer with an electrical discharge ion source for atmospheric trace gas measurement [PDF]
Atmospheric Measurement Techniques, 2019 We present a chemical ionization quadrupole mass spectrometer (CI-QMS) with a radio-frequency (RF) discharge ion source through N2∕CH3I as a source of primary ions. In addition to the expected detection of PAN, peracetic acid (PAA) and ClNO2 through well-
P. G. Eger +6 more
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Mini rf-driven ion sources for focused ion beam systems [PDF]
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 +1 more source
He jishu, 2021 BackgroundCesium injection can significantly reduce the work function of plasma grid surface of the radio frequency (RF) negative ion source, which is an effective way to promote the surface generation and improve the yield of H- ions.PurposeThis study ...
WANG Haoming +10 more
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