Interlaboratory comparison program for nondestructive assay of prototype uranium reference materials
The US Department of Energy (DOE), New Brunswick Laboratory (NBS), designed and administered an interlaboratory comparison program based on the measurement of NBL-produced prototype uranium nondestructive assay (NDA) reference materials for scrap and waste. The objectives of the program were to evaluate the reliability of NDA techniques as applied to nuclear safeguards materials control and accountability needs and to investigate the feasibility of providing practical NDA scrap and waste reference materials for use throughout the nuclear safeguards community. Fourteen facilities representing seven DOE contractors, four US Nuclear Regulatory Commission (NRC) licensees, one EURATOM Laboratory, and NBL, participated in this program. Three stable, well-characterized uranium reference materials were developed and certified for this program. Synthetic calcined ash, cellulose fiber, and ion-exchange resin simulate selected uranium scrap and waste forms which are often encountered in fabrication and recovery operations. The synthetic calcined ash represents an intermediate density inorganic matrix while the cellulose fiber and ion-exchange resin are representative of low-density organic matrices. The materials, containing from 0 to 13% uranium enriched at 93% /sup 235/U, were sealed in specially selected containers. Nineteen prototype reference samples, plus three empty containers, one to accompany each set, was circulated to the participants between August 1979 and May 1984. Triplicate measurements for /sup 235/U on each of the 19 filled containers were required. In addition, participants could opt to perform modular configuration measurements using containers from Sets IIA and IIB to simulate non-homogeneously dispersed uranium in waste containers. All data were reported to NBL for evaluation.
- Research Organization:
- USDOE New Brunswick Lab., Argonne, IL
- OSTI ID:
- 7075748
- Report Number(s):
- NBL-306; ON: DE87004733
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION
URANIUM 235
CALIBRATION STANDARDS
ASHES
CELLULOSE
FIBERS
INTERLABORATORY COMPARISONS
ION EXCHANGE MATERIALS
NONDESTRUCTIVE ANALYSIS
NUCLEAR MATERIALS MANAGEMENT
RESINS
SCRAP METALS
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
CARBOHYDRATES
CHEMICAL ANALYSIS
ELEMENTS
EVEN-ODD NUCLEI
HEAVY NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MANAGEMENT
MATERIALS
METALS
MINUTES LIVING RADIOISOTOPES
NUCLEI
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
POLYMERS
POLYSACCHARIDES
RADIOISOTOPES
RESIDUES
SACCHARIDES
SCRAP
SOLID WASTES
STANDARDS
URANIUM ISOTOPES
WASTES
YEARS LIVING RADIOISOTOPES
400102* - Chemical & Spectral Procedures
055001 - Nuclear Fuels- Safeguards
Inspection
& Accountability- Technical Aspects