D2O material effect on the neutron asymmetry
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MCNPX Results
A simulation was done using MCNPX to see how neutron scattering impacts asymmetry measurements. The setup is shown below. Neutrons were created inside a bottle of D2O and given an initial direction towards the 0 degree detector. The size of the target and detectors are the actual size used in the experiment. The distance between the target and each detector is 1 meter.
A neutron energy distribution was put into MCNPX based off the actual energy distribution from the experimental data.
The asymmetry results are shown below.
