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Activity name

MOMORC: Mobile search of material outside of regulatory control (MORC) - detection limits assessed by field experiments


NKS-B Research Area Emergency Preparedness
Project summary

Searching for lost or stolen nuclear or radioactive material out of regulatory control (MORC) can be a difficult and resource-intensive task. The distance within which it is possible to detect a source depends on the type of radiation, the source activity, instrumentation, measuring time, movement speed, shielding and the method used to analyze data. In car-borne search it is important to know how far away from the road it is possible to detect radiation sources by the use of specific measuring methods. Practical experiences from search exercises have shown that radiation sources were not always detected even when theory indicated that they should have been discovered. Thus, there is a need to systematically examine how well mobile measurements in reality will detect radiation sources at distances around the theoretical limit of detection. The aim of the project is to develop a model to determine the detection limits for car-borne search of "orphan" gamma and neutron sources and to verify the model by conducting systematic field experimental measurements with car-borne measurement equipment and analysis methods used in the Nordic countries. The results are intended for authorities as a knowledge support for real operational situations.

Lead Organization Medical Physics, Dept. of Translational Medicine, Lund University, Sweden
Contact Person Christopher Rf 
phone number: +46 40 331145


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