Dennis Cravens confirmed that he did use magnets and high voltage to trigger reactions. That's what I remember, but I cannot find a paper. Anyway, he wrote to me:
"You don't get many neutrons unless there is a fairly good magnetic field applied at the same time. You can get a little 'multiplication' of neutrons if you put some Be,Th or U around it. Th welding rods are ok. U works better. A 5 to 10 sigma over background is about right. The easiest is to just load up a Pd wire with D, put it in a D2 field tube and then run 5KV or so while you have a magnet on it. It is fun to put the U by the system and see the increased counts. . . ." - Jed
