Method and apparatus for obtaining simultaneously absorption...

Details Method and apparatus for obtaining simultaneously absorption... Method and apparatus for obtaining simultaneously absorption...

2006-06-13

2006-06-13

Glick, Edward J. (Department: 2882)

X-ray or gamma ray systems or devices

Specific application

Diffraction, reflection, or scattering analysis

C378S070000, C378S082000

Reexamination Certificate

active

07062015

ABSTRACT:
Apparatus for imaging an object (13) irradiated with an X-ray beam (12) by detecting a transmitted X-ray beam transmitted through the object. A crystal analyser (15) receives the transmitted X-ray beam and emits a first diffracted X-ray beam to a detector assembly (14) comprising first and second X-ray detectors (16and17). The first detector (16) is a monochromating semiconductor detector which detects a first portion of the first diffracted X-ray beam to generate first image data, and which diffracts a second portion of the first diffracted beam to the second detector (17) which generates second image data. Image processing means (18) are provided for combining the first and second image data to derive a refraction image and an absorption image of the object (13).

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Jach et al., “An X-Ray Monochromator Crystal which Detects the Bragg Condition,” Nuclear Instruments and Methods in Physics Research, A263 (1988), 522-524.
Chapman et al., “Diffraction Enhanced X-Ray Imaging,” Phys. Med. Biol., 42 (1997), 2015-2025.

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