Plutonium and uranium isotopic analysis: recent developments of the MGA++ code suite

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The Lawrence Livermore National Laboratory develops sophisticated gamma-ray analysis codes for isotopic determinations of nuclear materials based on the principles of the MultiGroup Analysis (MGA). MGA methodology has been upgraded and expanded and is now comprised of a suite of codes known as MGA++. A graphical user interface has also been developed for viewing the data and the fitting procedure. The code suite provides plutonium and uranium isotopic analysis for data collected with high-purity germanium planar and/or coaxial detector systems. The most recent addition to the MGA++ code suite, MGAHI, analyzes Pu data using higher-energy gamma rays (200 keV and ... continued below

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310 Kilobytes pages

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Buckley, W; Clark, D; Parker, W E; Romine, W; Ruhter, W & Wang, T F September 17, 1999.

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Description

The Lawrence Livermore National Laboratory develops sophisticated gamma-ray analysis codes for isotopic determinations of nuclear materials based on the principles of the MultiGroup Analysis (MGA). MGA methodology has been upgraded and expanded and is now comprised of a suite of codes known as MGA++. A graphical user interface has also been developed for viewing the data and the fitting procedure. The code suite provides plutonium and uranium isotopic analysis for data collected with high-purity germanium planar and/or coaxial detector systems. The most recent addition to the MGA++ code suite, MGAHI, analyzes Pu data using higher-energy gamma rays (200 keV and higher) and is particularly useful for Pu samples that are enclosed in thick-walled containers. Additionally, the code suite can perform isotopic analysis of uranium spectra collected with cadmium-zinc-telluride (CZT) detectors. We are currently developing new codes with will integrate into the MGA++ suite. These will include Pu isotopic analysis capabilities for data collected with CZT detectors, and U isotopic analysis with high-purity germanium detectors, which utilizes only higher energy gamma rays. Future development of MGA++ will include a capability for isotopic analyses on mixtures of Pu and U.

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310 Kilobytes pages

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  • 6th International Meeting on Facilities Operations - Safeguards Interface, Jackson Hole, WY (US), 09/20/1999--09/24/1999

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  • Report No.: UCRL-JC-133130
  • Report No.: GD0604020
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 14422
  • Archival Resource Key: ark:/67531/metadc628311

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • September 17, 1999

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  • June 16, 2015, 7:43 a.m.

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  • May 6, 2016, 1:50 p.m.

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Buckley, W; Clark, D; Parker, W E; Romine, W; Ruhter, W & Wang, T F. Plutonium and uranium isotopic analysis: recent developments of the MGA++ code suite, article, September 17, 1999; California. (digital.library.unt.edu/ark:/67531/metadc628311/: accessed December 16, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.