Dual energy radiation scanning of contents of an object

Details Dual energy radiation scanning of contents of an object Dual energy radiation scanning of contents of an object

2007-08-13

2009-12-22

Kiknadze, Irakli (Department: 2882)

X-ray or gamma ray systems or devices

Specific application

Absorption

C378S057000, C378S098900

Reexamination Certificate

active

07636417

ABSTRACT:
In one embodiment, a method of examining contents of an object is disclosed comprising scanning an object at first and second radiation energies, detecting radiation at the first and second energies, and calculating a function of the radiation detected at the first and second energies. The method further comprises calculating at least one second function based, at least in part, on at least some of the first functions, and determining whether the object at least potentially contains material in a class of materials based, at least in part, on the second function. The class of materials may be materials having an atomic number greater than the predetermined atomic number, for example. The second function may be compared to a criterion, which may be a threshold, for example. Systems are also disclosed.

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