Multi-sensor explosive detection system
This patent describes an explosive detection system. It comprises a source of neutrons; a detector array comprising a plurality of gamma ray detectors, each of the gamma ray detectors providing a detection signal in the event a gamma ray is captured by the detector, and at least one neutron detector, the neutron detector providing a neutron detection signal in the event a neutron is captured by the neutron detector; means for irradiating an object being examined with neutrons from the neutron source and for positioning the detector array relative to the object so that gamma rays emitted from the elements within the object as a result of the neutron irradiation are detected by the gamma ray detectors of the detector array; and parallel distributed processing means responsive to the detection signals of the detector array for discriminating between objects carrying explosives and objects not carrying explosives, the parallel distributed processing means including an artificial neural system (ANS), the ANS having a parallel network of processors, each processor of the parallel network of processors, each processor of the parallel network of processors including means for receiving at least one input signal, and means for generating an output signal as a function of the at least one input signal.
- Assignee:
- Science Applications International Corp., Dan Diego, CA (United States)
- Patent Number(s):
- US 5078952; A
- Application Number:
- PPN: US 7-463036
- OSTI ID:
- 5551110
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
665300* -- Interactions Between Beams & Condensed Matter-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
DETECTION
ELECTROMAGNETIC RADIATION
EXPLOSIONS
GAMMA RADIATION
IONIZING RADIATIONS
IRRADIATION
MATERIALS
MEASURING INSTRUMENTS
NEURAL NETWORKS
NEUTRON SOURCES
PARALLEL PROCESSING
PARTICLE SOURCES
PROGRAMMING
RADIATION DETECTORS
RADIATION SOURCES
RADIATIONS
SIGNALS