A fixed-frequency cyclotron in conjunction with millimicrosecond time-of-flight techniques has been used to study elastic and inelastic neutron scattering from iron and carbon in the Mev range. The elastic angular distribution from iron exhibits an optical diffraction type pattern, and the inelastic angular distribution proves to be primarily isotropic except for a slight asymmetry around 90 degrees. The elastic angular distribution from carbon is in essential agreement with previous work.

• Received 26 April 1956

DOI:https://doi.org/10.1103/PhysRev.103.720