Abstract
In this project an americium-beryllium (AmBe) neutron source was used to study the attenuation characteristics of polyethylene on an incident flux of varying neutron energies from 200 keV to 10 MeV. The linear absorption coefficient suitable for a single neutron energy was found to vary with absorber thickness due to the higher cross section for absorption of low-energy neutrons. The attenuation coefficient for a thickness greater than 15 cm was found to be associated with higher velocity neutrons.
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