They seem to be on the right track. Moreover, most likely, this is not thermonuclear fusion, but cold fusion. By the way, I will have a similar project, because I finally realized that plasma still needs to be twisted not with a propeller, not with crossed fields, and not with a rotating magnetic field, but with the help of a funnel into which gas is supplied, flowing at high speed from a cylinder.
Dear bayak!
I read your article describing your experiment. As far as I understand you, you want to start a cold nuclear fusion reaction in a plasma vortex at the appropriate temperature, breaking the Coulomb barrier.
Sorry, it doesn't work that way.
Firstly, there is no Coulomb barrier in Nature. For example, there is no Coulomb barrier for neutrinos. The Coulomb barrier exists only in our heads.
2) Cold nuclear fusion is a non-mechanical process, and you are trying to start it using mechanical vortex motion of plasma.
3) You can read my proposals for solving the cold fusion problem in my article: