Selection of non-destructive assay methods: Neutron counting or calorimetric assay?
The transition of DOE facilities from production to D&D has lead to more measurements of product, waste, scrap, and other less attractive materials. Some of these materials are difficult to analyze by either neutron counting or calorimetric assay. To determine the most efficacious analysis method, variety of materials, impure salts and hydrofluorination residues have been assayed by both calorimetric assay and neutron counting. New data will be presented together with a review of published data. The precision and accuracy of these measurements are compared to chemistry values and are reported. The contribution of the gamma ray isotopic determination measurement to the overall error of the calorimetric assay or neutron assay is examined and discussed. Other factors affecting selection of the most appropriate non-destructive assay method are listed and considered.
- Research Organization:
- Los Alamos National Lab., NM (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 10171590
- Report Number(s):
- LA-UR-94-2377; CONF-940748-39; ON: DE94016211; TRN: 94:015530
- Resource Relation:
- Conference: 35. annual meeting of the Institute of Nuclear Materials Management (INMM),Naples, FL (United States),17-20 Jul 1994; Other Information: PBD: [1994]
- Country of Publication:
- United States
- Language:
- English
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37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
NONDESTRUCTIVE ANALYSIS
COMPARATIVE EVALUATIONS
CALORIMETRY
COUNTING TECHNIQUES
NEUTRON DETECTION
QUALITATIVE CHEMICAL ANALYSIS
MEASURING METHODS
PLUTONIUM 240
COINCIDENCE METHODS
AMERICIUM
NUCLEAR MATERIALS MANAGEMENT
055001
400101
440103
TECHNICAL ASPECTS
ACTIVATION, NUCLEAR REACTION, RADIOMETRIC, AND RADIOCHEMICAL PROCEDURES
NUCLEAR SPECTROSCOPIC INSTRUMENTATION