I would expand on your statement by saying that Helion is planning to generate electricity by directly extracting the kinetic energy of the particles created in

I would expand on your statement by saying that Helion is planning to generate electricity by directly extracting the kinetic energy of the particles created in the fusion reaction. And they need charged particles rather than neutrons. (I watched the video and really it's as simple as charged particles moving in and creating a magnetic field inside loops of metal which in turn generates a current that can be used. (Just add several dozen years worth of post-doc maths to sort out the details)