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Title: Ultra-high resolution computed tomography imaging

Abstract

A method for ultra-high resolution computed tomography imaging, comprising the steps of: focusing a high energy particle beam, for example x-rays or gamma-rays, onto a target object; acquiring a 2-dimensional projection data set representative of the target object; generating a corrected projection data set by applying a deconvolution algorithm, having an experimentally determined a transfer function, to the 2-dimensional data set; storing the corrected projection data set; incrementally rotating the target object through an angle of approximately 180.degree., and after each the incremental rotation, repeating the radiating, acquiring, generating and storing steps; and, after the rotating step, applying a cone-beam algorithm, for example a modified tomographic reconstruction algorithm, to the corrected projection data sets to generate a 3-dimensional image. The size of the spot focus of the beam is reduced to not greater than approximately 1 micron, and even to not greater than approximately 0.5 microns.

Inventors:
 [1];  [1];  [2];  [1];  [3]
+ Show Inventor Affiliations
  1. Knoxville, TN
  2. (Harriman, TN)
  3. (Knoxville, TN)
Issue Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
OSTI Identifier:
874596
Patent Number(s):
6421409
Assignee:
UT-Battelle LLC (Oak Ridge, TN)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01T - MEASUREMENT OF NUCLEAR OR X-RADIATION
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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DOE Contract Number:  
AC05-96OR22464
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
ultra-high; resolution; computed; tomography; imaging; method; comprising; steps; focusing; energy; particle; beam; example; x-rays; gamma-rays; target; acquiring; 2-dimensional; projection; data; set; representative; generating; corrected; applying; deconvolution; algorithm; experimentally; determined; transfer; function; storing; incrementally; rotating; angle; approximately; 180degree; incremental; rotation; repeating; radiating; step; cone-beam; modified; tomographic; reconstruction; sets; generate; 3-dimensional; image; size; spot; focus; reduced; micron; 05; microns; particle beam; transfer function; energy particle; computed tomography; /378/

Citation Formats

Paulus, Michael J, Sari-Sarraf, Hamed, Tobin, Jr., Kenneth William, Gleason, Shaun S, and Thomas, Jr., Clarence E. Ultra-high resolution computed tomography imaging. United States: N. p., 2002. Web.
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Paulus, Michael J, Sari-Sarraf, Hamed, Tobin, Jr., Kenneth William, Gleason, Shaun S, & Thomas, Jr., Clarence E. Ultra-high resolution computed tomography imaging. United States.
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Paulus, Michael J, Sari-Sarraf, Hamed, Tobin, Jr., Kenneth William, Gleason, Shaun S, and Thomas, Jr., Clarence E. Tue . "Ultra-high resolution computed tomography imaging". United States. https://www.osti.gov/servlets/purl/874596.
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@article{osti_874596,
title = {Ultra-high resolution computed tomography imaging},
author = {Paulus, Michael J and Sari-Sarraf, Hamed and Tobin, Jr., Kenneth William and Gleason, Shaun S and Thomas, Jr., Clarence E.},
abstractNote = {A method for ultra-high resolution computed tomography imaging, comprising the steps of: focusing a high energy particle beam, for example x-rays or gamma-rays, onto a target object; acquiring a 2-dimensional projection data set representative of the target object; generating a corrected projection data set by applying a deconvolution algorithm, having an experimentally determined a transfer function, to the 2-dimensional data set; storing the corrected projection data set; incrementally rotating the target object through an angle of approximately 180.degree., and after each the incremental rotation, repeating the radiating, acquiring, generating and storing steps; and, after the rotating step, applying a cone-beam algorithm, for example a modified tomographic reconstruction algorithm, to the corrected projection data sets to generate a 3-dimensional image. The size of the spot focus of the beam is reduced to not greater than approximately 1 micron, and even to not greater than approximately 0.5 microns.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 2002},
month = {Tue Jan 01 00:00:00 EST 2002}
}
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Works referenced in this record:

A synchrotron radiation microprobe for X-ray fluorescence and microtomography at ELETTRA. Focusing with bent crystals
journal, March 1991

  • Devoti, Roberto; Zontone, Federico; Tuniz, Claudio
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Cone-beam X-ray microtomography of small specimens
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Imaging and microtomography facility at the ESRF beamline ID 22
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  • SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, SPIE Proceedings
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Design and performance of the 2-ID-B scanning x-ray microscope
conference, November 1998

  • McNulty, Ian; Frigo, Sean P.; Retsch, Cornelia C.
  • SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, SPIE Proceedings
  • https://doi.org/10.1117/12.330333
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