“He proposed to use lithium-6 deuteride, which would make tritium and facilitate deuterium-tritium fusion reactions.”
“The document revealed in The Times report described the use of a neutron source, uranium deuteride, which experts said had no possible use other than in a nuclear weapon.”
“The technical document describes the use of a neutron source, uranium deuteride, which is feared to have no possible civilian or military use other than in a nuclear weapon.”