Non-destructive testing method and apparatus

Akers, Douglas W

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Title: Non-destructive testing method and apparatus

Abstract

Non-destructive testing apparatus may comprise a photon source and a source material that emits positrons in response to bombardment of the source material with photons. The source material is positionable adjacent the photon source and a specimen so that when the source material is positioned adjacent the photon source it is exposed to photons produced thereby. When the source material is positioned adjacent the specimen, the specimen is exposed to at least some of the positrons emitted by the source material. A detector system positioned adjacent the specimen detects annihilation gamma rays emitted by the specimen. Another embodiment comprises a neutron source and a source material that emits positrons in response to neutron bombardment.

Inventors:

Akers, Douglas W ^[1]

Idaho Falls, ID

Issue Date:: Tue Oct 04 00:00:00 EDT 2011

Research Org.:: Idaho National Laboratory (INL), Idaho Falls, ID (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1029269

Patent Number(s):: 8031825

Application Number:: 11/626,473

Assignee:: Battelle Energy Alliance, LLC (Idaho Falls, ID)

Patent Classifications (CPCs):: G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

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G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G01N23/221 - by activation analysis
G01N23/227 - Measuring photoelectric effect, e.g. photoelectron emission microscopy [PEEM]

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DOE Contract Number:: AC07-99ID13727; AC07-05ID14517

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING

Citation Formats


                    Akers, Douglas W. Non-destructive testing method and apparatus.  United States: N. p., 2011. 
        Web.

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                    Akers, Douglas W. Non-destructive testing method and apparatus.  United States.

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                    Akers, Douglas W. Tue .  
        "Non-destructive testing method and apparatus".  United States.  https://www.osti.gov/servlets/purl/1029269.

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@article{osti_1029269,

  title        = {Non-destructive testing method and apparatus},

  author       = {Akers, Douglas W},

  abstractNote = {Non-destructive testing apparatus may comprise a photon source and a source material that emits positrons in response to bombardment of the source material with photons. The source material is positionable adjacent the photon source and a specimen so that when the source material is positioned adjacent the photon source it is exposed to photons produced thereby. When the source material is positioned adjacent the specimen, the specimen is exposed to at least some of the positrons emitted by the source material. A detector system positioned adjacent the specimen detects annihilation gamma rays emitted by the specimen. Another embodiment comprises a neutron source and a source material that emits positrons in response to neutron bombardment.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Tue Oct 04 00:00:00 EDT 2011},

  month        = {Tue Oct 04 00:00:00 EDT 2011}

}

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Works referenced in this record:

Photoneutron Cross Sections for ${}^{23}{Na}$ and ${}^{25}{Mg}$
journal, November 1971

Alvarez, R. A.; Berman, B. L.; Lasher, D. R.
Physical Review C, Vol. 4, Issue 5
https://doi.org/10.1103/PhysRevC.4.1673

Properties of ( $γ, n$ ) Cross Sections
journal, July 1951

Marshall, L.
Physical Review, Vol. 83, Issue 2
https://doi.org/10.1103/PhysRev.83.345

The Reaction $N^{14} (γ, 2 n) N^{12}$
journal, August 1952

Panofsky, Wolfgang K. H.; Reagan, Daryl
Physical Review, Vol. 87, Issue 3
https://doi.org/10.1103/PhysRev.87.543

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Similar Records

Title: Non-destructive testing method and apparatus

Abstract

Citation Formats

Photoneutron Cross Sections for Na 23 and Mg 25 journal, November 1971

Properties of ( γ , n ) Cross Sections journal, July 1951

The Reaction N 14 ( γ , 2 n ) N 12 journal, August 1952

Photoneutron Cross Sections for ${}^{23}{Na}$ and ${}^{25}{Mg}$
journal, November 1971

Properties of ( $γ, n$ ) Cross Sections
journal, July 1951

The Reaction $N^{14} (γ, 2 n) N^{12}$
journal, August 1952