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Accession Number DE2012-1054482
Title Multi-Isotope Process (MIP) Monitor Project: FY12 Progress and Accomplishments.
Publication Date Sep 2012
Media Count 34p
Personal Author C. R. Orton D. V. Jordan J. B. Coble J. M. Schwantes K. Unlu K. J. Dayman S. Landsberger S. E. Bender
Abstract The Multi-Isotope Process (MIP) Monitor, being developed at Pacific Northwest National Laboratory (PNNL), provides an efficient approach to monitoring the process conditions in reprocessing facilities in support of the goal of (minimization of) the risks of nuclear proliferation and terrorism. The MIP Monitor measures distributions of a suite of indicator (radioactive) isotopes present within product and waste streams of a nuclear reprocessing facility. These indicator isotopes are monitored on-line by gamma spectrometry and compared, in near-real-time, to spectral patterns representing normal process conditions using multivariate pattern recognition software. The monitor utilizes this multivariate analysis and gamma spectroscopy of reprocessing streams to detect small changes in the gamma spectrum, which may indicate changes in process conditions. Multivariate analysis methods common in chemometrics, such as principal component analysis (PCA) and partial least squares regression (PLS), act as pattern recognition techniques, which can detect small deviations from the expected, nominal condition. By targeting multiple gamma-emitting indicator isotopes, the MIP Monitor approach is compatible with the use of small, portable, relatively high-resolution gamma detectors that may be easily deployed throughout an existing facility. The automated multivariate analysis can provide a level of data obscurity, giving a built-in information barrier to protect sensitive or proprietary operational data. Proof-of-concept simulations and experiments have been performed in previous years to demonstrate the validity of this tool in a laboratory setting. Development of the MIP Monitor approach continues to evaluate the efficacy of the monitor for automated, real-time or near-real-time application. This report details follow-on research and development efforts sponsored by the U.S. Department of Energy Fuel Cycle Research and Development related to the MIP Monitor for fiscal year 2012 (FY12).
Keywords Actinides
Aqueous solutions
Contaminants
Fission products
Fuel reprocessing
Isotope production
Ligands
Monitoring
Purex process
Radioactive waste processing
Separation processes
Solvent extraction
Streams

 
Source Agency Technical Information Center Oak Ridge Tennessee
NTIS Subject Category 77G - Radioactive Wastes & Radioactivity
77I - Reactor Fuels & Fuel Processing
99E - Photochemistry and Radiation Chemistry
Corporate Author Pacific Northwest National Lab., Richland, WA.
Document Type Technical report
Title Note N/A
NTIS Issue Number 1308
Contract Number DE-AC05-76RL01830

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