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high specific impulse
At the large ratios now possible, more reasonable voltage levels can deliver high specific impulse.
      
Directed research pertaining to high-power, high specific impulse Hall thrusters was conducted under the sponsorship of Project Prometheus.
      
It is important to work with propellants that have large electrical conductivity, if high specific impulse is desired.
      
It is clear that there are many missions that can benefit from high exhaust velocity, or equivalently high specific impulse, technologies.
      
It provides extremely high specific impulse combined with high density yielding the highest ranking in four of the five figures of merit.
      
Ion propulsion systems have the advantage of high specific impulse when compared to chemical and other electric propulsion systems.
      
Introduction The high specific impulse enabled by air-breathing hypersonic vehicles has motivated continued development of key technologies.
      
In rocket mode the engine operates as a closed cycle liquid oxygen/liquid hydrogen high specific impulse rocket engine.
      
One such activity is the investigation of high-power, high specific impulse Hall thrusters.
      
Such high velocities of ejected matter can provide a high specific impulse in a propulsion system.
      
To achieve high specific impulse operation, large potential differences are needed to accelerate the charged nanoparticles to high exhaust velocities.
      
The NASA-400M was developed to investigate high-power, high specific impulse Hall thruster operation.
      
There is a potential need for high specific impulse propulsion for small spacecraft.
      
The activities initiated at NASA GRC are in the second-year of a multi-year effort involved in development of this high specific impulse ion engine.
      
The coupling of high specific impulse and small size makes electric propulsion an ideal technology for small spacecraft.
      
The heat of formation of the binder should be as high as possible to achieve high specific impulse.
      
When little thrust with a high specific impulse is required, ions should be emitted.
      
 

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