Characterization of consistent NDA (nondestructive assay) standards
By combining calorimetry and traditional analytical methods five sets of unique NDA standards were characterized for the Savannah River Plant (SRP) of E.I. Du Pont de Nemours, Inc. The calorimetry measurements make it possible to nondestructively verify the homogeneity of the plutonia stock and to assure that the analytical aliquots were representative of the parent material. Two assay values were determined by calorimetric assay. When the isotopic composition was determined by mass spectroscopy and alpha pulse height analysis, the agreement between Pu content by calorimetry and controlled potential coulometry was within 0.06% for all five isotopic compositions. When nondestructive, gamma-ray isotopic techniques were used to assay the 1500 gram standards the agreement was within 0.1% for all five materials. The new half-lives and specific power recommended in the latest revision of ANSI N15.22-1987, Calibration Techniques for the Calorimetric Assay of Plutonium Bearing Solids were used for all computations. The standards were certified for plutonium content, isotopic composition, and thermal power. The mass of the standards varied from 20 to 1500 grams with /sup 240/Pu compositions ranging from 3 to 15 percent. 7 tabs.
- Research Organization:
- Monsanto Research Corp., Miamisburg, OH (USA). Mound
- DOE Contract Number:
- AC04-76DP00053
- OSTI ID:
- 6977656
- Report Number(s):
- MLM-3526(OP); CONF-880631-20; ON: DE88012883
- Resource Relation:
- Conference: 29. annual meeting of the Institute of Nuclear Materials Management, Las Vegas, NV, USA, 26 Jun 1988; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
NONDESTRUCTIVE ANALYSIS
PLUTONIUM ISOTOPES
ISOTOPE RATIO
QUALITATIVE CHEMICAL ANALYSIS
AMERICIUM ISOTOPES
CALORIMETRY
EXPERIMENTAL DATA
HALF-LIFE
PLUTONIUM OXIDES
STANDARDS
STATISTICAL DATA
ACTINIDE COMPOUNDS
ACTINIDE ISOTOPES
CHALCOGENIDES
CHEMICAL ANALYSIS
DATA
INFORMATION
ISOTOPES
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PLUTONIUM COMPOUNDS
TRANSURANIUM COMPOUNDS
400202* - Isotope Effects
Isotope Exchange
& Isotope Separation
400702 - Radiochemistry & Nuclear Chemistry- Properties of Radioactive Materials