The photoneutron angular distributions from carbon and beryllium have been measured by using bremsstrahlung of maximum energies of 23 Mev and 18 Mev, respectively. The results are $1+(1.35\pm 0.88){sin}^2\theta$ for carbon and $(1.26\mathrm{}\pm 0.11)+{sin}^2\theta$ for beryllium.

• Received 13 June 1956

DOI:https://doi.org/10.1103/PhysRev.103.1755