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

Abstract

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.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Lawrence Livermore National Lab., CA (US)
Sponsoring Org.:
USDOE Office of Defense Programs (DP) (US)
OSTI Identifier:
14422
Report Number(s):
UCRL-JC-133130; GD0604020
GD0604020; TRN: AH200136%%560
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Conference
Resource Relation:
Conference: 6th International Meeting on Facilities Operations - Safeguards Interface, Jackson Hole, WY (US), 09/20/1999--09/24/1999; Other Information: PBD: 17 Sep 1999
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION; CONTAINERS; GE SEMICONDUCTOR DETECTORS; GERMANIUM; LAWRENCE LIVERMORE NATIONAL LABORATORY; MIXTURES; PLUTONIUM; SAFEGUARDS; SPECTRA; URANIUM

Citation Formats

Buckley, W, Clark, D, Parker, W E, Romine, W, Ruhter, W, and Wang, T F. Plutonium and uranium isotopic analysis: recent developments of the MGA++ code suite. United States: N. p., 1999. Web.
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. United States.
Buckley, W, Clark, D, Parker, W E, Romine, W, Ruhter, W, and Wang, T F. Fri . "Plutonium and uranium isotopic analysis: recent developments of the MGA++ code suite". United States. https://www.osti.gov/servlets/purl/14422.
@article{osti_14422,
title = {Plutonium and uranium isotopic analysis: recent developments of the MGA++ code suite},
author = {Buckley, W and Clark, D and Parker, W E and Romine, W and Ruhter, W and Wang, T F},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {9}
}

Conference:
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