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Title: High resolution, multiple-energy linear sweep detector for x-ray imaging

Abstract

Apparatus is disclosed for generating plural electrical signals in a single scan in response to incident X-rays received from an object. Each electrical signal represents an image of the object at a different range of energies of the incident X-rays. The apparatus comprises a first X-ray detector, a second X-ray detector stacked upstream of the first X-ray detector, and an X-ray absorber stacked upstream of the first X-ray detector. The X-ray absorber provides an energy-dependent absorption of the incident X-rays before they are incident at the first X-ray detector, but provides no absorption of the incident X-rays before they are incident at the second X-ray detector. The first X-ray detector includes a linear array of first pixels, each of which produces an electrical output in response to the incident X-rays in a first range of energies. The first X-ray detector also includes a circuit that generates a first electrical signal in response to the electrical output of each of the first pixels. The second X-ray detector includes a linear array of second pixels, each of which produces an electrical output in response to the incident X-rays in a second range of energies, broader than the first range of energies. Themore » second X-ray detector also includes a circuit that generates a second electrical signal in response to the electrical output of each of the second pixels. 12 figs.« less

Inventors:
;
Issue Date:
Research Org.:
University of California
OSTI Identifier:
372587
Patent Number(s):
5,548,123
Application Number:
PAN: 8-350,854; TRN: 96:023337
Assignee:
Univ. of California, Oakland, CA (United States)
DOE Contract Number:  
AC03-76SF00098
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 20 Aug 1996
Country of Publication:
United States
Language:
English
Subject:
44 INSTRUMENTATION, INCLUDING NUCLEAR AND PARTICLE DETECTORS; X-RAY DETECTION; RADIATION DETECTORS; DESIGN; ENERGY DEPENDENCE; IMAGES

Citation Formats

Perez-Mendez, V, and Goodman, C A. High resolution, multiple-energy linear sweep detector for x-ray imaging. United States: N. p., 1996. Web.
Perez-Mendez, V, & Goodman, C A. High resolution, multiple-energy linear sweep detector for x-ray imaging. United States.
Perez-Mendez, V, and Goodman, C A. Tue . "High resolution, multiple-energy linear sweep detector for x-ray imaging". United States.
@article{osti_372587,
title = {High resolution, multiple-energy linear sweep detector for x-ray imaging},
author = {Perez-Mendez, V and Goodman, C A},
abstractNote = {Apparatus is disclosed for generating plural electrical signals in a single scan in response to incident X-rays received from an object. Each electrical signal represents an image of the object at a different range of energies of the incident X-rays. The apparatus comprises a first X-ray detector, a second X-ray detector stacked upstream of the first X-ray detector, and an X-ray absorber stacked upstream of the first X-ray detector. The X-ray absorber provides an energy-dependent absorption of the incident X-rays before they are incident at the first X-ray detector, but provides no absorption of the incident X-rays before they are incident at the second X-ray detector. The first X-ray detector includes a linear array of first pixels, each of which produces an electrical output in response to the incident X-rays in a first range of energies. The first X-ray detector also includes a circuit that generates a first electrical signal in response to the electrical output of each of the first pixels. The second X-ray detector includes a linear array of second pixels, each of which produces an electrical output in response to the incident X-rays in a second range of energies, broader than the first range of energies. The second X-ray detector also includes a circuit that generates a second electrical signal in response to the electrical output of each of the second pixels. 12 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1996},
month = {8}
}