Synthetic and process material nondestructive assay calibration standards

Technical Report · Sat Jan 01 04:00:00 EST 1983

OSTI ID:6310124

Sherrill, R D; McBride, J D; Navratil, L H

Two general approaches to nondestructive assay (NDA) chemical standard preparation and certification have been successfully employed at the Rocky Flats Plant. The fabrication of synthetic standards is a low cost method of obtaining standards with well characterized special nuclear material (SNM) content, but this approach may result in instrument calibration biases due to unanticipated matrix effects. Certification of process material with chemical and/or NDA measurements requires more effort and normally results in a higher uncertainty for the SNM content. The latter approach does, however, produce standards with a matrix that is more representative of the process stream, thus improved instrument calibrations result. Examples of both calibration techniques are discussed. 7 references, 18 figures, 1 table.

• Research Organization: Rockwell International Corp., Golden, CO (USA). Rocky Flats Plant
• DOE Contract Number: AC04-76DP03533
• OSTI ID: 6310124
• Report Number(s): RFP-3624; ON: DE85003915
• Country of Publication: United States
• Language: English

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98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION
CALIBRATION STANDARDS
CALORIMETRY
CHEMICAL ANALYSIS
GAMMA SPECTROSCOPY
MEASURING INSTRUMENTS
NEUTRON DETECTORS
NONDESTRUCTIVE ANALYSIS
RADIATION DETECTORS
SPECTROSCOPY
STANDARDS