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Methods for the accountability of reprocessing plant dissolver and waste solutions

Technical Report ·
OSTI ID:6228155
; ;
The determination of total plutonium and uranium in the accountability tank and leached hulls following dissolution of the fuel elements, constitutes a measurement of the input to the reprocessing plant. The volume and density of the solution in the accountability tank are measured to obtain the total weight of solution. The solution is sampled and analyzed by isotope dilution mass spectrometry to obtain the concentrations and isotopic composition of uranium and plutonium. The first chapter of this manual is devoted to the calibration of the accountability tank and to the measurement of the volume and density of dissolver solutions contained in the accountability tank. Calibration of instrument and jet heels is also considered. The second chapter of this document discusses procedures for obtaining meaninful samples of the dissolver and waste solutions. The third chapter discusses isotope dilution mass spectrometry of uranium and plutonium. A method for determining /sup 238/Pu by alpha spectrometry is also given. The fourth chapter contains sensitive methods for the determination of the uranium and plutonium concentration in aqueous and organic waste solutions and of undissolved fuel in leached hulls. The final chapter discusses the various types of error that may occur in the course of volume measurment, sampling, and analysis. It is shown how these errors may be estimated and combined to obtain an overall limit of error on the total plutonium and uranium in the accountability tank.
Research Organization:
California Univ., Livermore (USA). Lawrence Livermore Lab.
OSTI ID:
6228155
Report Number(s):
NUREG/CR-0515
Country of Publication:
United States
Language:
English

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Related Subjects

050800* -- Nuclear Fuels-- Spent Fuels Reprocessing
055001 -- Nuclear Fuels-- Safeguards
Inspection
& Accountability-- Technical Aspects
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION
ACCOUNTING
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ACTINIDES
ALPHA DECAY RADIOISOTOPES
ALPHA SPECTROSCOPY
CALIBRATION
CHEMICAL ANALYSIS
CONTAINERS
DENSITY
ELEMENTS
ERRORS
EVEN-EVEN NUCLEI
EXTRACTION
FUEL REPROCESSING PLANTS
HEAVY NUCLEI
HETEROCYCLIC COMPOUNDS
ISOTOPE APPLICATIONS
ISOTOPE DILUTION
ISOTOPE RATIO
ISOTOPES
KETONES
MANAGEMENT
MASS SPECTROSCOPY
METALS
NUCLEAR FACILITIES
NUCLEI
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PHYSICAL PROPERTIES
PLUTONIUM
PLUTONIUM 238
PLUTONIUM ISOTOPES
QUANTITATIVE CHEMICAL ANALYSIS
RADIOISOTOPES
SAMPLING
SEPARATION PROCESSES
SOLVENT EXTRACTION
SPECTROPHOTOMETRY
SPECTROSCOPY
TANKS
TRACER TECHNIQUES
TRANSURANIUM ELEMENTS
TTA
URANIUM
URANIUM ISOTOPES
YEARS LIVING RADIOISOTOPES