By my understanding practically all of the generated energy is due to neutrons hitting the containment vessel. Highly energetic neutron, impacting solid matter,

By my understanding practically all of the generated energy is due to neutrons hitting the containment vessel. Highly energetic neutron, impacting solid matter, will generate quite a bit of heat in the violent collision. I found one fairly decent source [0] which goes into somewhat greater detail. It's worth noting that if you follow the link to first page of the series, that page explicitly states that what fusion reactors call "neutron flux" would be called "heat flux" in traditional reactors. And it makes sense even when thinking logically. Energy and matter are interchangeable, and the reactor turns matter into energy; majority of matter escaping from the fusion reactor will be helium and neutrons. These particles interacting with external solid matter turns kinetic energy into heat. That's the power plant's heat source. Now, as to the fraction of heat transferred by neutrons compared to that transferred by the newly formed helium - I have no idea. 0: http://www.visionofearth.org/industry/fusion/how-do-we-turn-nuclear-fusion-energy-into-electricity/ http://www.visionofearth.org/industry/fusion/how-do-we-turn-...