TY  - JOUR
T1  - Detection of Neutron Sources in Cargo Containers
AU  - J. I. Katz
PY  - 2006
T2  - Science & Global Security
SP  - 145
EP  - 149
VL  - 14
IS  - 2-3
N2  - We investigate the problem of detecting the presence of clandestine neutron sources, such as would be produced by nuclear weapons containing plutonium, within cargo containers. Small, simple, and economical semiconductor photodiode detectors affixed to the outsides of containers are capable of producing statistically robust detections of unshielded sources when their output is integrated over the durations of ocean voyages. It is possible to shield such sources with thick layers of neutron-absorbing material, and to minimize the effects of such absorbers on ambient or artificial external neutron fluxes by surrounding them with neutron-reflective material.
UR  - http://scienceandglobalsecurity.org/archive/sgs14katz.pdf
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