The performance of a low-power cylindrical Hall thruster, which more readily lends itself to miniaturization and low-power operation than a conventional (annular) Hall thruster, was measured using a planar plasma probe and a thrust stand.
A series of performance measurements on the PPPL 3 cm cylindrical Hall thruster over a power ranging Objective of the Research The Divergent Cusped Field Thruster (DCF, or DCFT), developed at SPL is a concept belonging to the general family of Hall devices, but being clearly distinguished by the use of a cylindrical set of magnetic cusps for electron confinement, in replacement of the simple radial field of common Hall thrusters.
Investigators at the Harbin Institute of Technology in China have developed a new inlet design for CHTs that significantly increases thrust. cylindrical Hall thruster, or FCHT). In the resulting Examples window expand the VSim for Plasma Discharges option. The magnetic shielding rings were designed to adjust the magnetic field near the anode in different levels. A series of gas distributors with different radial positions (R g) of holes were designed in the experiment.The results show that the larger R g leads to the higher ion current and electron current; meanwhile, the beam angle in plume is narrowed. The Cylindrical Hall Thruster example is accessed from within VSimComposer by the following actions: Select the New → From Example… menu item in the File menu. @article{osti_874722, title = {Cylindrical geometry hall thruster}, author = {Raitses, Yevgeny and Fisch, Nathaniel J}, abstractNote = {An apparatus and method for thrusting plasma, utilizing a Hall thruster with a cylindrical geometry, wherein ions are accelerated in substantially the axial direction.
The effect of radial position of gas holes in the distributor on the performance of cylindrical Hall thruster was investigated. Expand the Spacecraft option. The field in the cylindrical thruster was produced using permanent magnets, promising a power reduction Select Cylindrical Hall Thruster and press the Choose button.
The performance characteristics of a cylindrical Hall thruster depending on the magnetic field near the anode were investigated.
For cylindrical Hall thrusters, the magnetic field geometry is totally different from that in conventional Hall thrusters. The cylindrical Hall thruster can be more readily scaled to smaller sizes due to its non-conventional discharge chamber geometry and associated magnetic field profile. The FCHT design was introduced by Raitses and Fisch,18 and a 5.6 cm diameter version has been developed and studied by Shirasaki and Tahara.19 We will also present data on ion charge state and erosion species in the plume, and on … In this study, we investigate the magnetic mirror effect in a fully cylindrical Hall thruster by changing the number of iron rings (0-5), which surround the discharge channel wall. The cylindrical Hall thruster features high ionization efficiency, quiet operation, and ion acceleration in a large volume-to-surface ratio channel with performance comparable with the state-of-the-art annular Hall thrusters. Cylindrical shaped Hall thrusters (CHTs) lend themselves to miniaturization and have a smaller surface-to-volume ratio that prevents erosion of the thruster channel. The apparatus is suitable for operation at low power.
These characteristics were demonstrated in low and medium power ranges. Other plasma thrusters, such as cylindrical Hall-thrusters (CHT's) and diverging cusped field thrusters (DCFT's) have a similar issue.
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