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Title: Isotope specific arbitrary material sorter

A laser-based mono-energetic gamma-ray source is used to provide a rapid and unique, isotope specific method for sorting materials. The objects to be sorted are passed on a conveyor in front of a MEGa-ray beam which has been tuned to the nuclear resonance fluorescence transition of the desired material. As the material containing the desired isotope traverses the beam, a reduction in the transmitted MEGa-ray beam occurs. Alternately, the laser-based mono-energetic gamma-ray source is used to provide non-destructive and non-intrusive, quantitative determination of the absolute amount of a specific isotope contained within pipe as part of a moving fluid or quasi-fluid material stream.
Inventors:
Issue Date:
OSTI Identifier:
1228378
Assignee:
Lawrence Livermore National Security, LLC LLNL
Patent Number(s):
9,205,463
Application Number:
14/238,158
Contract Number:
AC52-07NA27344
Resource Relation:
Patent File Date: 2012 Aug 22
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
07 ISOTOPE AND RADIATION SOURCES; 42 ENGINEERING

Other works cited in this record:

Applications Of Nuclear Resonance Fluorescence Of Gamma Rays To Elemental Analysis
patent, December 1973

Gamma-gamma resonance in activation analysis, and particularly, its application to detection of nitrogen based explosives in luggage
patent, August 1991

Explosives detection using resonance fluorescence of bremsstrahlung radiation
patent, May 1992

Nuclear resonances in activation analysis, and particularly, its application to detection of nitrogen based explosives in luggage
patent, March 1994

Nuclear resonances in activation analysis, and particularly, its application to detection of nitrogen based explosives in luggage
patent, June 1994

Detection of explosives and other materials using resonance fluorescence, resonance absorption, and other electromagnetic processes with bremsstrahlung radiation
patent, May 1995

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

Etalon, a wavelength monitor/locker using the etalon and associated methods
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Wavelength compensated optical wavelength division coupler and associated methods
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System and method for producing pulsed monochromatic X-rays
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Method and apparatus for radiation detection
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Adaptive scanning of materials using nuclear resonance fluorescence imaging
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Isotopic imaging via nuclear resonance fluorescence with laser-based Thomson radiation
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Apparatus system, and method for high flux, compact compton x-ray source
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Use of nearly monochromatic and tunable photon sources with nuclear resonance fluorescence in non-intrusive inspection of containers for material detection and imaging
patent, April 2010

Dual isotope notch observer for isotope identification, assay and imaging with mono-energetic gamma-ray sources
patent, February 2013

High flux, narrow bandwidth compton light sources via extended laser-electron interactions
patent, January 2015

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
  • DOI: 10.1016/j.nima.2009.05.035

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

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