It a badly-written article. It uses Helium as coolant. Helium is the most inert element there is. A noble gas. I think only supernovas (or close) get it going.
The hydrogen relates to a new fuelcell deal that UT is studying.
(And its dueterium that's bomb hydrogen, not plain old hydrogen. Need that extra nuetron. And fusion, not fission.)
OK--but I am perhaps an "average" consumer in the public audience and if I think that, maybe lots of others do, too.
Any use of Helium should make y'all happy out there. Don't you have the only helium on earth? At least, Amarillo does and I think it's your natural gas that has the special qualifications for helium production - proximity to uranium, isn't it? Route66, the Mother Road to the MotherLode, lol.