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Improving Cadmium Capture-Gated Neutron Detection Techniques

By  and Andrew K Hoffman and Andrew K Hoffman


We have improved on our original design for a cadmium capture-gated neutron detector by designing a "wedge " detector. This new design allowed for more consistent pulses for the entire face of the attached photomultiplier tube. Testing at the Ohio University accelerator facility showed efficiency of this new detector lies around 12%. Testing was also performed with bismuth as a gamma shield to reduce the number of accidental events recorded. Three inches of bismuth proved to reduce the amount of accidental pulses recorded by the detector by a factor of 10

Topics: neutron, detection, shielding, radiationACKNOWLEDGMENTS Special thanks to Dr. Rees, Dr. Czirr, and John Ellsworth for their patience, teaching, training
Year: 2012
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