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Old 09-02-2018, 10:29 PM   #26
AlexanderHowl
 
Join Date: Feb 2016
Default Re: [Sci-fi] Plausible scenarios for the evacuation of Earth at TL10-11

From my discussions with plasma physicists involved in fusion research, they are universally skeptical of D-He3 fusion (one of the advantages of being engaged to a plasma physicist involved in fusion research). Not to get into the weeds, but pressures and temperatures required for that type of fusion will cause around 1 million DD fusion events for every D-He3 fusion event, assuming an equal ratio of D to He3. While you could have an unequal ratio to facilitate D-He3 fusion, you need such a large proportion of He3 to D that the energy used to heat the material would exceed the energy generated.
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