AAWSAP DIRD, Inertial Electrostatic Confinement Fusion, March 2010

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D-0 IEC for T A
0-T IEC
for PFNA/FNA
I C for x-
y
- -c:CJ D
ctor Arr y
Luggag
Top View
Figure 5.2. Schematic (view from top) of a broad coverage IEC inspection System for luggage
inspection
This unit employs two broad area neutron sources to provide both 14.1-MeV and 2.45­
MeV neutron coverage. The IEC Bremsstrahlung source provides broad area 80 kV x­
rays. An array of gamma and x-ray detectors is provided for simultaneous x-ray
analysis using a fuzzy logic artificial intelligence system to interpret the combined
signals. In the inspection station, shown in Figure 5.2, typical of airport luggage
inspection stations, objects being interrogated pass between sources and detection
array on a conveyor belt. For maximum efficiency a duplicate conveyor belt and
detection array (not shown in Figure 5.2) would be placed on the left hand side of the
IEC sources. For other cases, such as unloading container from a ship the detectors
system might be suspended along t he side of the vessel with containers as they are
lowered from the upper decks to the waiting cargo train cars or trucks (see Figures 5.3
and 5.4 and related discussion). The challenge in these systems is that the unloading
time is short and the container is large and thick. The present system with its multi-lEC
broad coverage and fast fuzzy analysis technology is designed to overcome these
issues. Further, conventional accelerator type systems that are candidates for such use
are hampered by size and cost . Thus, they have not received wide use in sea ports. The
increased accuracy and reduced cost of the present system should enable wide use.
This would close a vital gap in our seaport/airport cargo security that has been widely
cited by critics of the present handling of port security.
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