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Aerospace Space propulsion breakthrough: new spacecraft ion engine tested

  1. Jan 30, 2006 #1

    Astronuc

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    http://www.physorg.com/news9786.html :smile:
     
  2. jcsd
  3. Jan 30, 2006 #2

    Danger

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    Very interesting, Astro. I wasn't aware of the ion erosion problem.
     
  4. Jan 30, 2006 #3

    Astronuc

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    Ion erosion is a problem is most if not all ion thrusters, whether electrostatic or EM. In magnetoplasmadynamic (MPD), there is the additional problem of cathode spotting - localized accelerated erosion where the arc current is higher.
     
  5. Jan 30, 2006 #4

    Pengwuino

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    What is the difference between these engines and the Deep Space 1's engine?
     
  6. Jan 30, 2006 #5

    Astronuc

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    Deep Space 1 is a classic ion thruster, IIRC with a single stage.

    http://www.boeing.com/defense-space/space/bss/factsheets/xips/nstar/ionengine.html

    http://www.space.com/scienceastronomy/solarsystem/deepspace_propulsion_000816.html

    http://www.grc.nasa.gov/WWW/ion/past/90s/ds1.htm


    whereas, The Dual-Stage 4-Grid ion engine has two stages,

    http://prl.anu.edu.au/SP3/research/SAFEandDS4G

    http://www.esa.int/gsp/ACT/propulsion/safe_thruster.htm
     
  7. Jun 23, 2009 #6

    Astronuc

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