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Q&A - Helion Energy, NIF, Space and more
About this video
A roughly three-hour technical livestream Q&A on Helion Energy's fusion approach and the National Ignition Facility. It covers neutron production, shielding, energy recovery, diagnostics and why tokamaks might fare better.
Why it appears in the archive
HN commenters cite it as a detailed critical counterpoint to Helion's claims, for those who want more than the hype.
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From the Hacker News discussion
The new video by the same guy who created the original criticism [VIDEO] starting from 2:03:00 explains that 95% recovery efficiency is not the whole story.
Read original comment ↗Additional resources for people who want to read or watch more on the subject: [VIDEO] [LINK] /u/ValAslanyan is Improbable Matter and he gets into some interesting debates about Helion [LINK] [LINK]
Read original comment ↗The Q&A mentioned is likely this [0]. Do you have any hints which section would cover the upsides? [0] [VIDEO]
Read original comment ↗The new video by the same guy [VIDEO] from 32 min describes how Helion will get a lot of D+T neutrons from the secondary reactions despite all their efforts. Even without that the neutron flux from D+D reaction by Helion own admission will be enough to do a lot of damage within days of operation based on experience with slower fission neutrons.
Read original comment ↗