Abstract
The differential cross sections and polarizations of neutrons elastically scattered by U, Th, Pb, Au, W, and Cd have been measured for scattering angles between 1.75° and 15°. The range of neutron energies covered is from 0.6 to 1.6 MeV. These data show no evidence for any anomalous long-range neutron-nucleus interaction. The data are used to evaluate an upper limit for the absolute value of the real part of the forward-scattering amplitude at each energy for each of the above scattering samples. The polarization of neutrons that emerge at 51° relative to the proton-beam direction in the reaction (the neutron-source reaction) is determined by use of these small-angle results for proton energies between 2.47 and 3.55 MeV. Some of the advantages of the use of small-angle neutron scattering as a polarization analyzer are discussed.
- Received 16 August 1968
DOI:https://doi.org/10.1103/PhysRev.176.1405
©1968 American Physical Society