Comparison between calorimeter and HLNC errors

This paper summarizes an error analysis that compares systematic and random errors of total plutonium mass estimated for high-level neutron coincidence counter (HLNC) and calorimeter measurements. This task was part of an International Atomic Energy Agency (IAEA) study on the comparison of the two instruments to determine if HLNC measurement errors met IAEA standards and if the calorimeter gave significantly better precision. Our analysis was based on propagation of error models that contained all known sources of errors including uncertainties associated with MGA-processed plutonium isotopic measurements