UV-Vis Spectroscopy as a Tool for Safeguards; Instrumentation installation and fundamental data collection

Smith, Nicholas A.¹  Krebs, John F.¹  Hebden, Andrew S.¹ 

[1] Argonne National Lab. (ANL), Argonne, IL (United States)

关键词: SAVANNAH RIVER PLANT;    TRANSITION ELEMENTS;    CONCENTRATION RATIO;    ABSORPTIVITY;    INSTALLATION;    MONITORS;    SAFEGUARDS;    SPECTROPHOTOMETERS;    OPTICAL SPECTROMETERS;    ULTRAVIOLET SPECTROMETERS;    ACTINIDES;    CANYONS;    QUALITATIVE CHEMICAL ANALYSIS;    EQUIPMENT INTERFACES;    VALENCE Actinide chemistry;    Nuclear Safeguards;    Process Monitoring;   

DOI  :  10.2172/1221970
RP-ID  :  ANL/NE--15/7
PID  :  OSTI ID: 1221970
Others  :  Other: 120663
Others  :  TRN: US1500426

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来源: SciTech Connect

【 摘 要 】

Two spectrophotometric process monitors, one optimized for high concentration (approximately 10 g/L) and one for trace levels (approximately 10 ppm),were developed at Argonne and installed at the SRS H-Canyon facility for field testing. These systems were built of Commercial-Off-The-Shelf components utilizing a custom, facility-specific hardware interface. The systems directly provide a qualitative measurement of process chemistry (i.e. valence state). With appropriate calibrations the systems could provide quantitative data. Laboratory tests were performed to determine the spectrophotometric molar absorptivity coefficients for relevant actinide and transition metals of interest.