A. Thornton and W. Charlton,
"Characterization of a Portable Neutron Coincidence Counter,"
Annual Meeting of the Institute for Nuclear Materials Management
, July 8-12, 2007, Tucson, AZ.
Neutron coincidence counting is a technique widely used for
qualitative and quantitative analysis of nuclear material. Because
different isotopes possess different coincident neutron
characteristics, the coincident neutron signature can be used to
identify and quantify a given material. In an effort to identify
unknown nuclear samples in field inspections, a new portable
neutron coincidence counter has been developed. An indepth analysis
has been performed to establish whether the nuclear material in an
unknown sample could be quantified with some confidence. The
analysis was performed by comparing the true measurements of the
system to the calculated output produced using MCNPX and the
neutron coincidence point model. Based on the analysis, it is
evident that this new portable system can play a useful role in
identifying nuclear material for verification purposes.
Associated Project(s):Safeguards Instrumentation Development for Measuring Pu via Coincident Neutron-Gamma Signals