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

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.
Authors:
 [1] ;  [1] ;  [1]
  1. Argonne National Lab. (ANL), Argonne, IL (United States)
Publication Date:
OSTI Identifier:
1221970
Report Number(s):
ANL/NE--15/7
120663; TRN: US1500426
DOE Contract Number:
AC02-06CH11357
Resource Type:
Technical Report
Research Org:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA), Office of Defense Programs (DP) (NA-10)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION; 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