X-ray backscatter system for imaging at shallow depths

Details X-ray backscatter system for imaging at shallow depths X-ray backscatter system for imaging at shallow depths

2008-01-30

2009-11-17

Kao, Chih-Cheng G (Department: 2882)

X-ray or gamma ray systems or devices

Specific application

Diffraction, reflection, or scattering analysis

Reexamination Certificate

active

07620150

ABSTRACT:
The apparatus has an x-ray source that emits an x-ray cone beam through a tubular, x-ray-blocking guide to a planar template with a small pinhole to produce a pencil beam. The template is movable so the pencil beam can scan the target region to be imaged. Between the template and target region is an x-ray detector assembly with a plastic scintillator. The scintillator has an opening about the same size and shape as the target region that allows the pencil beam to pass to the target region. Photo-multiplier detectors receive the light generated by the backscattered x-rays in the scintillator. The method of the present invention employs the apparatus. Multiple x-rays source locations permit the generation of 3D images.

REFERENCES:
patent: 5692029 (1997-11-01), Husseiny et al.
patent: 2004/0028178 (2004-02-01), Jupp et al.
patent: 2007/0098142 (2007-05-01), Rothschild et al.

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