Applications of gamma-ray spectrometry in the quantitative nondestructive assay of special nuclear materials

Sampson, T E; Parker, J L

doi:10.1016/0168-9002(90)90801-C

Title: Applications of gamma-ray spectrometry in the quantitative nondestructive assay of special nuclear materials

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Abstract

Nearly all applications of gamma-ray spectrometry in the quanitative assay of special nuclear materials can be grouped into five general categories. They are as follows: (1) Quanitative passive assay, of which transmission-corrected passive assay methods for measuring isotopic masses/concentrations are an important subset; (2) Enrichment measurements on infinitely thick'' samples for absolute determination of isotopic fractions/concentrations; (3) Measurements of isotopic ratios using relative detection efficiency principles resulting in absolute isotopic distributions without recourse to standards; (4) Absorption-edge densitometry measurements of elemental concentrations; and (5) X-ray fluorescence measurements of elemental concentrations. Careful and correct practice of these techniques can yield measurement accuracies in the range of 0.1% to 1.0% in favorable situations with measurement times generally in the range of 15 minutes to 1 hour. We present examples of these general categories with emphasis on those measurements and techniques exhibiting the best accuracy, as well as those which are not routinely practiced in many other applications of gamma-ray spectrometry. 20 refs., 6 fig.

Authors:: Sampson, T E; Parker, J L

Publication Date:: Mon Apr 16 00:00:00 EDT 1990

Research Org.:: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Sponsoring Org.:: DOE/DP

OSTI Identifier:: 6988083

Report Number(s):: LA-UR-90-1372; CONF-900563-4
Journal ID: ISSN 0168-9002; ON: DE90010609

DOE Contract Number:: W-7405-ENG-36

Resource Type:: Conference

Resource Relation:: Journal Volume: 299; Journal Issue: 1-3; Conference: 7. symposium on radiation measurements and applications, Ann Arbor, MI (USA), 21-24 May 1990

Country of Publication:: United States

Language:: English

Subject:: 98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION; GAMMA SPECTROSCOPY; USES; NUCLEAR MATERIALS MANAGEMENT; ACCOUNTABILITY; CALIBRATION; CONCENTRATION RATIO; FISSILE MATERIALS; ISOTOPE RATIO; NONDESTRUCTIVE ANALYSIS; RADIOISOTOPES; X-RAY FLUORESCENCE ANALYSIS; CHEMICAL ANALYSIS; FISSIONABLE MATERIALS; ISOTOPES; MANAGEMENT; MATERIALS; SPECTROSCOPY; X-RAY EMISSION ANALYSIS; 055001* - Nuclear Fuels- Safeguards, Inspection, & Accountability- Technical Aspects

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                    Sampson, T E, and Parker, J L. Applications of gamma-ray spectrometry in the quantitative nondestructive assay of special nuclear materials.  United States: N. p., 1990. 
        Web.  doi:10.1016/0168-9002(90)90801-C.

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                    Sampson, T E, & Parker, J L. Applications of gamma-ray spectrometry in the quantitative nondestructive assay of special nuclear materials.  United States.  https://doi.org/10.1016/0168-9002(90)90801-C

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                    Sampson, T E, and Parker, J L. 1990.  
        "Applications of gamma-ray spectrometry in the quantitative nondestructive assay of special nuclear materials".  United States.  https://doi.org/10.1016/0168-9002(90)90801-C.  https://www.osti.gov/servlets/purl/6988083.

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@article{osti_6988083,

  title        = {Applications of gamma-ray spectrometry in the quantitative nondestructive assay of special nuclear materials},

  author       = {Sampson, T E and Parker, J L},

  abstractNote = {Nearly all applications of gamma-ray spectrometry in the quanitative assay of special nuclear materials can be grouped into five general categories. They are as follows: (1) Quanitative passive assay, of which transmission-corrected passive assay methods for measuring isotopic masses/concentrations are an important subset; (2) Enrichment measurements on infinitely thick'' samples for absolute determination of isotopic fractions/concentrations; (3) Measurements of isotopic ratios using relative detection efficiency principles resulting in absolute isotopic distributions without recourse to standards; (4) Absorption-edge densitometry measurements of elemental concentrations; and (5) X-ray fluorescence measurements of elemental concentrations. Careful and correct practice of these techniques can yield measurement accuracies in the range of 0.1% to 1.0% in favorable situations with measurement times generally in the range of 15 minutes to 1 hour. We present examples of these general categories with emphasis on those measurements and techniques exhibiting the best accuracy, as well as those which are not routinely practiced in many other applications of gamma-ray spectrometry. 20 refs., 6 fig.},

  doi          = {10.1016/0168-9002(90)90801-C},

  url          = {https://www.osti.gov/biblio/6988083},
  journal      = {},

  issn         = {0168-9002},

  number       = 1-3,

  volume       = 299,

  place        = {United States},

  year         = {Mon Apr 16 00:00:00 EDT 1990},

  month        = {Mon Apr 16 00:00:00 EDT 1990}

}

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