Reports that fusion of hydrogen isotopes may occur at room temperature during the electrolysis of ${\mathrm{D}}_2$O led us to investigate possible d-t fusion reactions in an electrolysis cell with a tritiated Ti cathode. A searc for 14-MeV neutrons from this reaction, using an NE213 scintillator detector and pulse shape discrimination techniques, showed no significant deviations from background levels. We derive an upper limit of ${10}^{\mathrm{-}23}$ ${\mathrm{s}}^{\mathrm{-}1}$ for the fusion rate per d-t pair.

• Received 3 October 1989

DOI:https://doi.org/10.1103/PhysRevC.41.R1899