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Re: New idea Laser launcher/scoop systems

At 9:43 PM 3/14/96, Timothy van der Linden wrote:
>>>No, what matters most is the pressure that is build up inside the engine.
>>>The higher the pressure, the higher the exhaust velocity.
>>>One can regulate that velocity by enlarging or reduce the ourlet.
>>
>>I'm not sure that is possible with particals going a fraction of the speed
>>of light.  Remember the G loads my mag launcher would have needed to get to
>>fuel up to .3 of light.  I think the nessisary voltage presure might be
>>undoable.  Certainly your not talking about a normal rocket chanber
>>situation.
>
>Maybe you have a point there, but since we haven't any clue let me do some
>brainstorming:
>
>The pressure at one side is high anyway, namely the backside of the ship.
>Adding some extra engine walls may increase the pressure but also makes the
>efficiency better, since the first extra walls will be at the side so that
>the particle stream is more to the aft.
>
>I assume that all the particles will be ionized so that we can make the
>walls of magnetic fields. If this doesn't work, I'm not sure what would,
>since the temperature of the particles would be very high (1E6 Kelvin?).

True.  I'm starting to get woried that particals will lose energy to the
mag or voltage sheilding, rather than bounce back from the wall and out the
back.  Anyone know how relativistic reflections work?

>Another way to decrease the pressure is simply to add less power (which is
>the smartest way, I think). So then the amount of particles goes down and so
>does the pressure.
>
>Timothy

???  The power is related to the number of particals reactiong.  I.E. a
given fusion reaction releases particals with x energy each.

Kelly


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Kelly Starks                       Internet: kgstar@most.fw.hac.com
Sr. Systems Engineer
Magnavox Electronic Systems Company
(Magnavox URL: http://www.fw.hac.com/external.html)

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