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24 points

I’d imagine, but I found this interesting:

Currently the maximum Q value achieved by humans is 1.53.

Had no idea someone had managed to get more energy out of a fusion device than they put in. Must have been unable to sustain it for any significant length of time, but still seems important.

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22 points

The Q=1.53 was done at the National Ignition Facility using inertial confinement fusion, which is significant for plasma research (and probably bombs), but can’t be used to generate power.

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It was big news I want to say about a year ago when a team first published that they had done it

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12 points
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Also this is just plasma gain, not whole system gain. To have a commercially viable reactor your probably need Q total > 10 at least. No system build so far even has a Q total of 1

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6 points

It was the NIF two years ago but it’s also not going to be generating power ever, it was just a demonstration/proof of concept.

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