Reply To: General thought on old coal mines.

[nemmart]

Breakable wrote: It seems the output is ~6.4 mj per shot.
https://focusfusion.org/index.php/site/article/how_will_we_get_there_from_here/
So its not MW or MWH but joules(not power but work), because it is per shot not per second.
If we have 1000 shots per second the the power would be ~6.4 gw
if 1 shot per hour then only 1.7 kilowatts.
It probably boils down into thermal and radiation flux management. EE part probably is hard only at mult-hertz.
I think the first prototypes as well as first generation units will be low frequency to reduce complexity of radiation and thermal management.
As the escaping radiation flux is probably a function of frequency, at this low frequency the shielding requirements probably can be considerably reduced
to fit a FF unit into a backyard, a truck, maybe with improved shielding materials even into a car.
Probably after a few generations of reactors are developed we will see it climb into MW or GW range and made smaller to fit onto a plane.

The units are wrong – it’s 6.4 kj not mj. See the “how_will_we_get_there_from_here” doc. Also, I think in Eric’s google tech talk, he mentioned 330 hz.