151K views · Jan 28, 2023 · 3:19:02 · 2 HN recommenders · 4 mentions · discussed 2023
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 Hacker News points people here: HN commenters cite it as a detailed critical counterpoint to Helion's claims, for those who want more than the hype.
“explains that 95% recovery efficiency is not the whole story”HN comment, 2023
“explains that 95% recovery efficiency is not the whole story”
Detailed critique explaining Helion recovery efficiency is not the whole story.
The new video by the same guy who created the original criticism this video starting from 2:03:00 explains that 95% recovery efficiency is not the whole story.
“Additional resources for people who want to read or watch more on the subject”
Additional resources on Helion debates.
Additional resources for people who want to read or watch more on the subject: this video link /u/ValAslanyan is Improbable Matter and he gets into some interesting debates about Helion link link
The Q&A mentioned is likely this [0]. Do you have any hints which section would cover the upsides? [0] this video
“describes how Helion will get a lot of D+T neutrons from the secondary reactions”
The new video by the same guy this 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.
