X-ray or gamma ray systems or devices – Specific application – Fluorescence
Reexamination Certificate
2006-09-12
2006-09-12
Thomas, Courtney (Department: 2882)
X-ray or gamma ray systems or devices
Specific application
Fluorescence
C378S057000
Reexamination Certificate
active
07106826
ABSTRACT:
A system and method for detecting a substance using x-ray fluorescence is disclosed. The detected substances may be explosives or controlled substances that have a specific chemical fluorescent signature. An energy source transmits an x-ray beam at a target. The target may be in a container or under a surface. The beam interacts with the target to produce fluorescent energy. An x-ray detector is at an angle relative to the energy source and gathers the fluorescent energy. The angle differs according to the physical configuration of the system. A portable embodiment will have a different angle than a stationary embodiment. A cooling mechanism cools the x-ray detector. The fluorescent energy is analyzed and processed by a multichannel analyzer and a computer. The computer determines whether the fluorescent energy from the target matches known fluorescent energies of specific substances. If the substance is detected, appropriate indications are made to prevent damage or acceptance of the substance.
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Cauthen Harold K.
Poteet Wade M.
Shriver Timothy D.
CDEX, Inc.
Hogan & Hartson LLP
Thomas Courtney
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