PNNL

Abstract

Detection and interdiction of nuclear, chemical, and biological weapons of mass destruction/disruption has become a priority for nations around the world. Large numbers of vehicles pass through international border crossings each day. The desire to interdict radiological material, including weapons and weapons material, has led to multiple deployments of instrumentation to detect radiation signatures at borders and within nations. The presence of naturally occurring radioactive material in the normal flow of commerce can have a negative impact on the methods for interdiction of radiological threats, and thus must be addressed with the instrumentation used.