Results 21 to 30 of about 343 (262)
Study on the influence of discharge voltage on the performance of Hall propulsion system
AIP Advances, 2023 The discharge characteristics of the Hall thruster are numerically studied at different discharge voltages when the magnetic field does not change based on the particle in cell plus Monte Carlo collision methods.
Yusong Zheng +4 more
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Optimization of the E×B method for studying the charge composition of ions in the plasma jet of Hall effect thrusters [PDF]
Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение"Electric propulsion rocket engines are widely used on board modern spacecraft. To ensure the efficient use of such engines, it is important to diagnose the plasma plume of the engine.
D. A. Maystrenko +3 more
doaj +1 more source
Applied Sciences, 2021 A Faraday cup (FC) is an instrument dedicated to current measurement in beams, jets and plasmas. It consists of a set of polarized electrodes mounted in such a way plasma sheath effect can be neglected, yielding accurate and reliable results.
Hugonnaud Valentin, Mazouffre Stéphane
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SITAEL HC1 Low-Current Hollow Cathode
Aerospace, 2020 SITAEL is active in the field of electric propulsion and is involved in the development of different thruster technologies—mainly Hall thrusters (HTs)—of power levels ranging from 100 W up to 20 kW.
Daniela Pedrini +4 more
doaj +1 more source
On the potential distribution in Hall thrusters [PDF]
Applied Physics Letters, 2004 A model of the plasma flow in a Hall thruster channel is developed that takes into account the two-dimensional current conservation effect and relies on some experimental input parameters, such as magnetic field and electron temperature distribution. The model is an attempt to explain the experimentally found nonuniform potential distribution across ...
Keidar, Michael +3 more
openaire +2 more sources
Numerical simulation optimization of neutral flow dynamics in low-power Hall thruster
Results in Physics, 2023 This paper utilizes a low-power Hall thruster to investigate its flow field’s neutral flow dynamics. Specifically, under a free molecular flow with a high Knudsen number (Kn>10), we employ the flow conductance theory to investigate the interplay between ...
Shixu Lu +5 more
doaj +1 more source
Advanced laboratory for testing plasma thrusters and Hall thruster measurement campaign
Nukleonika, 2016 Plasma engines are used for space propulsion as an alternative to chemical thrusters. Due to the high exhaust velocity of the propellant, they are more efficient for long-distance interplanetary space missions than their conventional counterparts.
Szelecka Agnieszka
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Evidence for Itinerant Ferromagnetic Flat Bands Producing Large Transverse Responses
Advanced Materials, EarlyView.Itinerant ferromagnetic flat bands are demonstrated in GdCo5 with a high Curie temperature of 940K, a stacked honeycomb–kagome lattice, through angle‐resolved photoemission spectroscopy and magneto‐thermoelectric measurements. These topological flat bands generate large Berry curvaturte, producing gigantic anomalous Nernst effect with record‐high ...
Susumu Minami +15 more
wiley +1 more source
Advanced Materials, EarlyView.Magnetic tunnel junctions (MTJs) using MgO tunnel barriers face challenges of high resistance‐area product and low tunnel magnetoresistance (TMR). To discover alternative materials, Literature Enhanced Ab initio Discovery (LEAD) is developed. The LEAD‐predicted materials are theoretically evaluated, showing that MTJs with dusting of ScN or TiN on ...
Sabiq Islam +6 more
wiley +1 more source
Effects of Magnetic Field Gradient on the Performance of a Magnetically Shielded Hall Thruster
Aerospace, 2023 The objective of this study is to investigate the effects of a magnetic field gradient on the performance of a magnetically shielded Hall thruster. The Particle-in-cell with Monte Carlo collision method (PIC-MCC) is used to simulate the discharge process
Qi Liu, Yong Li, Yanlin Hu, Wei Mao
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