Results 71 to 80 of about 2,323,028 (381)
Hall thruster ion beam characterization [PDF]
31st Joint Propulsion Conference and Exhibit, 1995 The distribution of ion current density as a function of angle from the thruster axis was measured at nominal operating conditions of 300 Volts discharge voltage and 4.5 Amperes discharge current for two SPT-100 stationary plasma thrusters from Fakel Enterprises, a D-55 anode layer thruster from the Central Scientific Research Institute for Machine ...
John M. Sankovic, David H. Manzella
openaire +2 more sources
Reconfigurable Three‐Dimensional Superconducting Nanoarchitectures
Advanced Functional Materials, EarlyView.3D superconducting nanostructures offer new possibilities for emergent physical phenomena. However, fabricating complex geometries remains challenging. Here 3D nanoprinting of complex 3D superconducting nanoarchitectures is established. As well as propagating superconducting vortices in 3D, anisotropic superconducting properties with geometric ...
Elina Zhakina +11 more
wiley +1 more source
Quantifying Electron and Ion Transfers in Contact Electrification with Ionomers
Advanced Functional Materials, EarlyView.The concurrent existence of both electron and ion transfers in solid‐ionomer contact electrification is reported. The ion transfer contributes significantly to the process of contact electrification, especially at high humidity, although only less than 2% of ions participate in the ion transfer, suggesting that there is room for further performance ...
Xiaoting Ma +5 more
wiley +1 more source
Numerical Study on Factors Affecting the Storage Tank Performance of an Iodine-ion Thruster
气体物理Iodine-ion thrusters are mainly used for attitude control and position maintenance of small satellites. They rely on the sublimation and ionization of iodine to generate thrust. The heating methods and structural parameters of the iodine feed-ing systems
Mingshi CHEN, Xian WANG
doaj +1 more source
A cyclic ground test of an ion auxiliary propulsion system: Description and operational considerations [PDF]
The Ion Auxiliary Propulsion System (IAPS) experiment is designed for launch on an Air Force Space Test Program satellite (NASA-TM-78859; AIAA Paper No. 78-647).
Kramer, Edward H., Ling, Jerri S.
core +1 more source
Ion plume investigation of a Hall effect thruster operating with Xe/N2 and Xe/air mixtures
Journal of Physics D: Applied Physics, 2019 The ion plume of a diameter Hall effect thruster operated on mixtures of xenon/nitrogen and xenon/air is investigated by means of a Wien filter (or probe).
A. Gurciullo, A. L. Fabris, M. Cappelli
semanticscholar +1 more source
Ultraviolet–Visible Spin‐Resolved Chip‐Scale Spectroscopy
Advanced Functional Materials, EarlyView.By harnessing phase, wavelength, and spin multiplexing, the proposed meta‐spectrometer enables spin‐resolved spectral analysis within a compact footprint. The presented dual‐band (320–450 nm) spin‐resolved meta‐spectrometer features enhance optical functionality, allowing for the simultaneous discrimination of spectral content and spin states of light ...
Nasir Mahmood +9 more
wiley +1 more source
Growth of Rayleigh instability in a Hall thruster channel having dust in exit region
AIP Advances, 2019 In a Hall thruster, the axial movement of ions towards the exit of the chamber and the divergence of ion beam sputter the wall and thus the maximum erosion of wall of the exit region takes place.
Hitendra K. Malik +2 more
doaj +1 more source
Determination of the extent of ion thruster efflux [PDF]
In the studies of proposed electric propulsion missions one of the areas of concern is the possible contamination of spacecraft instruments and thermal control surfaces by exhaust particles from an ion thruster. Vacuum tank tests were conducted in ground
Stevens, N. J.
core +1 more source
Background Pressure Effects on Ion Velocity Distributions in an SPT-100 Hall Thruster
Journal of Propulsion and Power, 2019 Increased background pressure in vacuum chamber test facilities as compared to on-orbit operation has been shown to influence the operation of electric propulsion devices such as Hall thrusters.
N. MacDonald-Tenenbaum +5 more
semanticscholar +1 more source