Talk:Fusion woo

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Problems with Radioactivity[edit]

The section on aneutronic fusion claims: "D-T reaction, which already has orders of magnitude lower problems with radioactivity than nuclear fission."

This is not clear-cut. Fissioning U or Pu produces ~200MeV, two nuclei of radioactive waste, and 2-3 not particularly high-energy neutrons, one of which is used for fissioning another U or Pu nucleus. 1-2 neutrons then can irradiate the reactor or convert U238 into transuranium nuclei. Some of the transuranic nuclei are burned up further, some are in the waste.

By contrast, D-T produces 17.6MeV, 14.1MeV of which are in a neutron, which is very good at irradiating the reactor. Ideally most of the neutrons will be used for breeding more T from Li6, but losses are inevitable. And you need 11 D-T reactions to produce the same energy as one fission reaction. It's less than clear that D-T has lower problems with radioactivity, much less "orders of magnitude lower". It does not have a transuranics problem, but that's about all. Anton (talk) 14:37, 11 April 2021 (UTC)

If you can provide a citation, please correct the text. Thanks. Bongolian (talk) 17:51, 11 April 2021 (UTC)
I have no specific citation, but then I did not make a claim. Does the author of the claim I criticized have a citation to back it up? (I spent a little time looking at the references in the Wikipedia article on aneutronic fusion, expecting to find some discussion of radioactivity problems caused by the neutrons, but a number of papers are not online, and the paper by Belyaev does not provide a motivation for the research. I expect there is some discussion somewhere, but am too lazy to search for it.) Anton (talk) 10:42, 12 April 2021 (UTC)