منابع مشابه
Ion Thruster Optical Performance Enhancement via Ion-emissive-surface Shaping
Numerical results that demonstrate how ion emissive surfaces should be shaped to induce the formation of well-focused, high-current beamlets are presented. Results obtained when the sheath shape and position are established and then held constant as operating conditions are changed are compared to corresponding results obtained with a conventional plasma sheath that moves. These comparisons sho...
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Helicon plasma sources are capable of efficiently ionizing propellants and have been considered for application in electric propulsion. However, studies that estimate the ion production cost of the helicon plasma source are limited and rely on estimates of the extracted ion current. The ion production cost of a helicon plasma source is determined using a gridded ion thruster configuration that ...
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The Embedded Electrode Hall Effect Thruster is a modified 10 kW T-220HT with embedded graphite electrodes within the channel wall to study ion focusing for improved thrust-to-power ratio. Previous experiments with the thruster have demonstrated increased performance on xenon with biased electrodes caused by increases in ion energy, propellant efficiency, and a reduction in the plume divergence ...
متن کاملDevelopment of the Linear Gridless Ion Thruster
The design of the Linear Gridless Ion Thruster, or LGIT, is presented in detail. The LGIT is a hybrid thruster that combines an ionization stage similar to those normally found on gridded ion engines with the acceleration mechanism of a Hall effect thruster. This thruster also features a linear geometry, which simplifies the design of the magnetic circuit while making the LGIT particularly well...
متن کاملIon Thruster Grid Lifetime Assessment Based on Its Structural Failure
This article developed an ion thruster optic system sputter erosion depth numerical 3D model by IFE-PIC (Immersed Finite Element-Particle-in-Cell) and Mont Carlo method, and calculated the downstream surface sputter erosion rate of accelerator grid; compared with LIPS-200 life test data. The results of the numerical model are in reasonable agreement with the measured data. Finally, we predicted...
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ژورنال
عنوان ژورنال: International Journal for Research in Applied Science and Engineering Technology
سال: 2020
ISSN: 2321-9653
DOI: 10.22214/ijraset.2020.6069