Measurement of the polarization of photoneutrons from deuterium
measurementofpol00mart.pdf (1.848Mb)Abstract
The polarization of the neutrons produced by photodisintegration of
deuterium by 2.75-Mev gamma rays has been measured and the results compared
to theoretical predictions. The photoneutrons were taken at five gamma-ray-
neutron angles between 45° and 135° in the laboratory and scattered from
magnesium which has a broad resonance at these neutron energies. The polarization was determined from the asymmetry in the left-right scattering
from magnesium. The neutrons are found to be negatively polarized as predicted.
The magnitude of the polarization and the dependence on the gamma-ray-
neutron angle are found to be in agreement with the theory within experimental
error.
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