Rocket thrust

If polywell fusion is developed, in what ways will the world change for better or worse? Discuss.

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kunkmiester
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Postby kunkmiester » Wed Nov 11, 2009 6:21 am

Evil is evil, no matter how small

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Postby DeltaV » Wed Nov 11, 2009 7:15 am


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Postby 93143 » Wed Nov 11, 2009 7:50 am


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Postby clonan » Wed Nov 11, 2009 5:59 pm


kunkmiester
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Postby kunkmiester » Wed Nov 11, 2009 7:01 pm

Evil is evil, no matter how small

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Postby 93143 » Wed Nov 11, 2009 9:43 pm


Mindblast
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Postby Mindblast » Wed Nov 11, 2009 10:04 pm


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Postby 93143 » Wed Nov 11, 2009 10:55 pm


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Postby 93143 » Thu Nov 12, 2009 3:00 am


kunkmiester
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Postby kunkmiester » Thu Nov 12, 2009 5:03 am

Evil is evil, no matter how small

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Postby 93143 » Thu Nov 12, 2009 8:30 am

No shielding on a net-power fusion reactor is probably an impossible dream. Remember that p-11B, properly run, produces neutrons at a rate eight orders of magnitude below D-T. That's pretty low. And at that tiny neutron rate, it still requires fully half as much shielding as a D-T reactor would. Logarithmic.

Unless there genuinely is no way for p-15N to produce neutrons, either by impurities or by side reactions or by structural impingement or whatever, you will need shielding.

DeltaV
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Postby DeltaV » Fri Nov 13, 2009 11:25 pm



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