The photographic target chamber incorporating limited magnetic deflection of product particles, which was used to investigate the beryllium plus proton reactions, has been applied to the beryllium plus deuteron reactions. Angular yields of the long and the short range protons, the tritons, and the unresolved alphas were obtained at bombarding energies below 1 Mev. Most of the distributions are fairly complex and energy dependent. The 90° yield of the long range protons increases rapidly with energy up to 900 kev, except for an anomaly at 700 kev. Tritons having a continuous distribution in energy, resulting from the three-particle disintegration ${\mathrm{Be}}^9\mathrm{}(d,t)2\alpha$, were observed. Range measurements on the mono-energetic triton group give a $Q=4.61\mathrm{}\pm 0.04$ Mev for the ${\mathrm{Be}}^9\mathrm{}(d,t)\mathrm{}{\mathrm{Be}}^8$ reaction.

• Received 15 January 1951

DOI:https://doi.org/10.1103/PhysRev.82.463