Results 31 to 40 of about 2,323,028 (381)
https://www.scielo.br/j/jatm/a/pNSFHNG7yrr56hnwXq3DDPD/?format=pdf&lang=en [PDF]
Journal of Aerospace Technology and Management, 2022 An approach to quantify the lifetime and reliability of dual-mode ion thruster is presented based on coupling analyses of thruster failure modes, throttle levels, life models, input uncertainties, and throttle profiles.
Xueer Zhang, Tianping Zhang, Detian Li
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Low energy Xe+ sputter yields for alumina, Hiperco 50, and boron nitride
AIP Advances, 2021 Electric thruster materials are often subject to erosion during normal device operation. As a result of the ion sputtering process, surface properties can be affected or the underlying material may be exposed, possibly compromising performance and/or ...
Mark W. Crofton, Jason A. Young
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AIP Advances, 2021 The gas inlet configuration has a direct impact on the neutral density pattern within a miniature ion thruster. We aimed to investigate the impact the gas inlet configuration and neutral density pattern will have on the neutral recycle rate within a ...
Ali Yousefian
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AIP Advances, 2021 To address the problem of low flux density generated by superconducting magnets and the onerous cooling system in existing superconducting magneto-hydrodynamic (MHD) thrusters, which leads to overall low thrust efficiency of MHD thrusters, a capacitive ...
Qiangqiang Cao +3 more
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Spatial evolution characteristics of ion and electron flow for 300 W class low-power Hall thruster
AIP Advances, 2021 The Faraday probe and cylindrical Langmuir probe were used to characterize the downstream ion and electron spatial evolution of a 300 W class low-power Hall thruster.
Xinwei Chen +10 more
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Application of the NEXT Ion Thruster Lifetime Assessment to Thruster Throttling [PDF]
44th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2008 Ion thrusters are low thrust, high specific impulse devices with typical operational lifetimes of 10,000 to 30,000 hr over a range of throttling conditions. The NEXT ion thruster is the latest generation of ion thrusters under development. The NEXT ion thruster currently has a qualification level propellant throughput requirement of 450 kg of xenon ...
Jonathan L. Van Noord, Daniel A. Herman
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High Fidelity Multi-Objective Design Optimization of a Downscaled Cusped Field Thruster
Aerospace, 2017 The Cusped Field Thruster (CFT) concept has demonstrated significantly improved performance over the Hall Effect Thruster and the Gridded Ion Thruster; however, little is understood about the complexities of the interactions and interdependencies of the ...
Thomas Fahey +2 more
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Simplified Power Supplies for Ion Thrusters [PDF]
Journal of Spacecraft and Rockets, 1981 A program addressing less complex and potentially lower cost ion thruster systems has been started at the NASA Lewis Research Center. This paper discusses the initial development and demonstration of power supplies with an order of magnitude reduction in parts count, leading to increased reliability at lower weight, while still maintaining thrust ...
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Optimal Interplanetary Transfer of Solar Wind Ion Focusing Thruster-Based Spacecraft
Applied Sciences, 2023 The Solar Wind Ion Focusing Thruster (SWIFT) is a highly-innovative propellantless propulsion concept, recently proposed by Gemmer and Mazzoleni. In its nominal configuration, a SWIFT consists of a conically-shaped mesh of positively-charged conducting ...
Alessandro A. Quarta +3 more
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Factors Affecting Ion Thruster’s Performance
Journal of Electronic & Information Systems, 2021 In this project, we investigated how ion thrusters produce propulsion and how the design of ion thrusters affects the performance of the thruster. In the experiment, we build a high voltage power supply (0- 50 kV) and foil rings to produce ion wind. When considering the design of the thruster, we focus on three variables: the volume of the space, where
Yuzhe Liu, Lidong Lin, Han Dong
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