Distinct incident energy spectra detection

Details Distinct incident energy spectra detection Distinct incident energy spectra detection

2006-10-26

2008-12-16

Thomas, Courtney (Department: 2882)

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

C378S004000, C378S005000

Reexamination Certificate

active

07466793

ABSTRACT:
A CT system in an example comprises one or more high frequency electromagnetic energy sources, a detection assembly, a data acquisition system (DAS), and a computer. The one or more high frequency electromagnetic energy sources emit one or more beams of high frequency electromagnetic energy toward an object to be imaged. The detection assembly is capable of measuring a plurality of projection data at a same projection path that corresponds to a plurality of distinct incident energy spectra. The detection assembly comprises one or more energy discriminating (ED) detectors and/or one or more energy integration (EI) detectors that receive high frequency electromagnetic energy emitted by the one or more high frequency electromagnetic energy sources. The data acquisition system (DAS) is operably connected to the one or more ED detectors and/or the one or more EI detectors. The computer is operably connected to the DAS.

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Definition of “Beam hardening” from Medcyclopedia.com.

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