Measurements have been made of the branching ratio for the reactions ${}_{}{}^3{}_{}{}^{}\mathrm{H}$(d,γ${)}^5$He${/}^3$H(d,n) ${}_{}{}^4{}_{}{}^{}\mathrm{He}$ for several incident deuteron energy ranges between 0 and 0.72 MeV. A stopping length tritium gas target bombarded by a pulsed deuteron beam was used to obtain a high reaction rate as well as provide neutron-gamma ray separation by time of flight. The branching ratio was determined to be 5.6±0.6×${10}^{\mathrm{-}5}$ integrated over the resonance from 0 to 275 keV.

• Received 9 December 1985

DOI:https://doi.org/10.1103/PhysRevC.33.1224