XRD-based false alarm resolution in megavoltage computed...

Details XRD-based false alarm resolution in megavoltage computed... XRD-based false alarm resolution in megavoltage computed...

2009-02-06

2010-11-30

Kiknadze, Irakli (Department: 2882)

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

C378S020000, C378S057000

Reexamination Certificate

active

07844027

ABSTRACT:
System and method for XRD-based false alarm resolution in computed tomography (“CT”) threat detection systems. Following a scan of an object with a megavoltage CT-based threat detection system, a suspicious area in the object is identified. The three dimensional position of the suspicious area is used to determine a ray path for the XRD-based threat detection system that provides minimal X-ray attenuation. The object is then positioned for XRD scanning of the suspicious area along this determined ray path. The XRD-based threat detection system is configured to detect high density metals (“HDMs) as well as shielded Special Nuclear Materials (“SNMs”) based on cubic or non-cubic diffraction profiles.

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