You can also buy commercial fusion reactors: https://www.thermofisher.com/search/browse/featured/us/en/80012997/Neutron+Generators https://www.thermofisher.com/

You can also buy commercial fusion reactors: https://www.thermofisher.com/search/browse/featured/us/en/80012997/Neutron+Generators https://www.thermofisher.com/search/browse/featured/us/en/80... Any neutron generator that emits 14MeV neutrons is doing it with D-T fusion.