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Title: Methods for 2-color radiography with laser-compton X-ray sources

Abstract

High-contrast, subtraction, x-ray images of an object are produced via scanned illumination by a laser-Compton x-ray source. The spectral-angle correlation of the laser-Compton scattering process and a specially designed aperture and/or detector are utilized to produce/record a narrow beam of x-rays whose spectral content consists of an on-axis region of high-energy x-rays surrounded by a region of slightly lower-energy x-rays. The end point energy of the laser-Compton source is set so that the high-energy x-ray region contains photons that are above the k-shell absorption edge (k-edge) of a specific contrast agent or specific material within the object to be imaged while the outer region consists of photons whose energy is below the k-edge of the same contrast agent or specific material. Scanning the illumination and of the object by this beam will simultaneously record and map the above edge and below k-edge absorption response of the object.

Inventors:
Issue Date:
Research Org.:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1600409
Patent Number(s):
10508998
Application Number:
15/319,986
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
Patent Classifications (CPCs):
A - HUMAN NECESSITIES A61 - MEDICAL OR VETERINARY SCIENCE A61B - DIAGNOSIS
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
DOE Contract Number:  
AC52-07NA27344
Resource Type:
Patent
Resource Relation:
Patent File Date: 05/07/2015
Country of Publication:
United States
Language:
English
Subject:
62 RADIOLOGY AND NUCLEAR MEDICINE

Citation Formats

Barty, Christopher P. J. Methods for 2-color radiography with laser-compton X-ray sources. United States: N. p., 2019. Web.
Barty, Christopher P. J. Methods for 2-color radiography with laser-compton X-ray sources. United States.
Barty, Christopher P. J. Tue . "Methods for 2-color radiography with laser-compton X-ray sources". United States. https://www.osti.gov/servlets/purl/1600409.
@article{osti_1600409,
title = {Methods for 2-color radiography with laser-compton X-ray sources},
author = {Barty, Christopher P. J.},
abstractNote = {High-contrast, subtraction, x-ray images of an object are produced via scanned illumination by a laser-Compton x-ray source. The spectral-angle correlation of the laser-Compton scattering process and a specially designed aperture and/or detector are utilized to produce/record a narrow beam of x-rays whose spectral content consists of an on-axis region of high-energy x-rays surrounded by a region of slightly lower-energy x-rays. The end point energy of the laser-Compton source is set so that the high-energy x-ray region contains photons that are above the k-shell absorption edge (k-edge) of a specific contrast agent or specific material within the object to be imaged while the outer region consists of photons whose energy is below the k-edge of the same contrast agent or specific material. Scanning the illumination and of the object by this beam will simultaneously record and map the above edge and below k-edge absorption response of the object.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {12}
}

Works referenced in this record:

Isotopic imaging via nuclear resonance fluorescence with laser-based Thomson radiation
patent, July 2009


Isotopic Imaging Via Nuclear Resonance Fluorescence With Laser-Based Thomson Radiation
patent-application, June 2009


Multi-Energy Imaging System and Method Using Optic Devices
patent-application, June 2009


Hybrid short-pulse amplifiers with phase-mismatch compensated pulse stretchers and compressors
patent, December 1998


Compact, high-flux, short-pulse x-ray source
patent, June 2008


Coherent x-ray scatter inspection system with sidescatter and energy-resolved detection
patent, August 2002


Aspheric diffractive reference for interferometric lens metrology
patent-application, August 2005


Etalon, a wavelength monitor/locker using the etalon and associated methods
patent, December 2003


Apparatus system, and method for high flux, compact compton x-ray source
patent, September 2009


Design and operation of a tunable MeV-level Compton-scattering-based γ -ray source
journal, July 2010


Radiation scanning units including a movable platform
patent-application, June 2004


High-Power Picosecond Pulse Recirculation for Inverse Compton Scattering
journal, November 2008


Inverse compton scattering gamma ray source
journal, September 2009

  • Boucher, S.; Frigola, P.; Murokh, A.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 608, Issue 1, p. S54-S56
  • https://doi.org/10.1016/j.nima.2009.05.035

Transmission-based detection of nuclides with nuclear resonance fluorescence using a quasimonoenergetic photon source
journal, October 2009


System and method for producing pulsed monochromatic X-rays
patent-application, May 2002


Adaptive Scanning Of Materials Using Nuclear Resonance Fluorescence Imaging
patent, August 2006


Method and apparatus for producing X-rays
patent, July 1986


Method for non-destructive measuring of radiation dose
patent-application, August 2004


Laser synchrotron source (LSS)
patent, October 1994


Methods for Identification and Verification
patent-application, July 2002


Maintaining Continuity of Augmentations
patent-application, January 2014


Inexpensive variable rep-rate source for high-energy, ultrafast lasers
patent-application, December 2004


Reduced loss high efficiency diffractive and associated methods
patent-application, July 2006


System and method for producing pulsed monochromatic X-rays
patent, February 2004


Compton backscattered collmated X-ray source
patent, March 2000


Compact, high-flux, short-pulse x-ray source
patent-application, November 2006


CT Imaging System
patent-application, March 2010


Apparatus, system, and method for high flux, compact compton x-ray source
patent, October 2007


High-power picosecond laser pulse recirculation
journal, January 2010


Electromagnetic wave generator
patent-application, November 2006


Differential Phase Contrast X-Ray Imaging System and Components
patent-application, November 2014


Method and Apparatus for Basis Material Decomposition with K-Edge Materials
patent-application, February 2009


High power short pulse fiber laser
patent-application, October 2005


Practical approach for one mJ femtosecond fiber laser
patent-application, August 2007


Source of Femtosecond Laser Pulses
patent-application, January 2011


Compact Coherent Current and Radiation Source
patent-application, November 2012