Results 161 to 170 of about 9,251 (208)

Conducting Wall Hall Thrusters

IEEE Transactions on Plasma Science, 2015
A unique configuration of the magnetic field and channel geometry near the wall of Hall thrusters, called magnetic shielding, has recently demonstrated the ability to significantly reduce the erosion of the boron nitride (BN) walls and extend the life of Hall thrusters by orders of magnitude.
Dan M. Goebel, Richard R. Hofer, Ioannis G. Mikellides, Ira Katz, James E. Polk, Brandon N. Dotson   +5 more
openaire   +1 more source

Hall-Thruster Scaling Laws

Journal of Propulsion and Power, 2013
The area of application of the Hall effect thrusters is constantly expanding, both in the direction of reduced power and toward an increase of power and specific impulse. The two main problems are studied in this paper. The first is to examine the possibility of providing the similarity of plasma parameters in Hall effect thrusters, and the second is ...
Andrey A. Shagayda, Oleg A. Gorshkov
openaire   +1 more source

Development of a linear Hall thruster

34th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, 1998
In this paper, we present a discussion of the physics of modern Hall thrusters and the impact that this physics may have on the design of new thrusters of varying geometries and power. Particular attention is placed on the design of a linear-device (non-coaxial) and the issue of closing the electron drift in the E x B direction.
W. Hargus, Jr., M. Cappelli
openaire   +1 more source

Tutorial: Physics and modeling of Hall thrusters

Journal of Applied Physics, 2017
Hall thrusters are very efficient and competitive electric propulsion devices for satellites and are currently in use in a number of telecommunications and government spacecraft. Their power spans from 100 W to 20 kW, with thrust between a few mN and 1 N and specific impulse values between 1000 and 3000 s.
openaire   +1 more source

A laboratory-scale Hall thruster

31st Joint Propulsion Conference and Exhibit, 1995
Anticipating future Stationary Plasma Thruster (SPT) evaluation programs, we designed, constructed, and tested a 400 Watt class SPT and propellant feed system. This "laboratory-scale" Hall thruster aids in developing advanced plume diagnostics. The SPT's performance was measured by a thrust stand under high vacuum operation.
JR., SZABO, ., JAMES POLLARD
openaire   +1 more source

Thermal model of Hall thruster

High Power Laser and Particle Beams, 2014
To provide energy loss loading conditions for the thermal analysis of Hall thruster, a thermal model of Hall thruster is developed. Based on the plasma theory, the mechanism of various energy losses in discharge chamber is analyzed, and related functions are established between these energy losses and operation, performance parameters and structural ...
龙建飞 Long Jianfei, 孙明明 Sun Mingming, 张天平 Zhang Tianping, 吴先明 Wu Xianming   +3 more
openaire   +1 more source

Conducting Wall Hall Thrusters

49th AIAA/ASME/SAE/ASEE Joint Propulsion Conference, 2013
A unique configuration of the magnetic field and channel geometry near the wall of Hall thrusters, called magnetic shielding, has recently demonstrated the ability to significantly reduce the erosion of the boron nitride (BN) walls and extend the life of Hall thrusters by orders of magnitude.
Dan M. Goebel, Richard R. Hofer, Ioannis G. Mikellides, Ira Katz   +3 more
openaire   +1 more source

Computation of Hall Thruster Performance

Journal of Propulsion and Power, 2001
A quasi-neutral one-dimensional hybrid model of a stationary plasma thruster has been used to predict the performance of a laboratory model thruster tested in the Propulsion Ionique pour Vols Orbitaux, Interpretation et Nouvelles Experiences, facility. In this model ions are treated as particles and electrons as a  uid and quasi neutrality is assumed ...
L. Garrigues, I. D. Boyd, J. P. Boeuf
openaire   +1 more source

On Scaling of Hall Effect Thrusters

IEEE Transactions on Plasma Science, 2015
The field of application of Hall effect thrusters (HETs) is constantly expanding toward increased power and specific impulse and also toward reduced power. The modern level of plasma simulations does not allow accurate prediction of a thruster performance in advance.
openaire   +1 more source

Hall thruster with grooved walls

Journal of Applied Physics, 2013
Axial-oriented and azimuthal-distributed grooves are formed on channel walls of a Hall thruster after the engine undergoes a long-term operation. Existing studies have demonstrated the relation between the grooves and the near-wall physics, such as sheath and electron near-wall transport.
Hong Li, Zhongxi Ning, Daren Yu
openaire   +1 more source