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Neutron spectroscopy was conducted using calibrated lead-shielded liquid (EJ-309) and plastic (stilbene) scintillator detectors. Additionally, neutron energies of approximately 4 and 5 MeV for TiD2 and ErD3 were measured, consistent with either boosted neutrons from kinetically heated deuterons or Oppenheimer-Phillips stripping reactions in the highly screened environment.
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Exposure of deuterated materials (ErD3 and TiD2) to photon energies in the range of 2.5–2.9 MeV resulted in photodissociation neutrons that were below 400 keV and also the 2.45-MeV neutrons consistent with H2(d,n)He3 fusion. D-D nuclear fusion events were observed in an electron-screened, deuterated metal lattice by reacting cold deuterons with hot deuterons (d*) produced by elastically scattered neutrons originating from bremsstrahlung photodissociation (where “d” and “D” denote H2).
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