Comparison of Ruska and Rosemont pressure gages (U)

Conference · Tue Jan 01 00:00:00 EST 1991 · Nuclear Materials Management. Annual Meeting Proceedings; (United States)

OSTI ID:5664023

Harvel, C D ^[1]

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1. Materials Control and Accountability Section, Westinghouse Savannah River Co., Aiken, SC (US)

This paper reports that a 150,000 gallon tank was calibrated during the months of May and July of 1990. Six calibration runs were completed. Ruska and Rosemont pressure gages were installed to make in-tank liquid level measurements during the calibration process. A flow meter was used to measure the incremental volumes of water added to or removed from the tank. The Ruska and Rosemont gages were compared to determine the gage best suited for tank operation. One comparison criteria was the tolerance limits of error (LOE) for the predicted standardized in-tank volumes. For accountability purposes, the effects of the two gages on the LOE for the predicted inventory of U-235 were evaluated. The most important comparison criteria was the gage's contribution to the U-235 inventory LOE. The choice of which gage to use depends on the other measurement methods used for material accountability. The contributions to the inventory LOE were evaluated for two in-tank liquid level measurement methods, two concentration measurement methods, and one isotopic measurement method. The results indicate the Ruska pressure gage is best suited for tank operation only if the best concentration measurement method is used.

• OSTI ID: 5664023
• Report Number(s): CONF-910774-; CODEN: NUMMB
• Journal Information: Nuclear Materials Management. Annual Meeting Proceedings; (United States), Vol. 20; Conference: 32. Institute of Nuclear Materials Management (INMM) annual meeting, New Orleans, LA (United States), 28-31 Jul 1991; ISSN 0362-0034
• Country of Publication: United States
• Language: English

Related Subjects

98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION
CALIBRATION
PRESSURE GAGES
COMPARATIVE EVALUATIONS
TANKS
URANIUM 235
ACCOUNTING
NUCLEAR MATERIALS MANAGEMENT
ERRORS
INVENTORIES
ISOTOPES
MEASURING METHODS
VOLUME
ACTINIDE ISO
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
CONTAINERS
EVALUATION
EVEN-ODD NUCLEI
HEAVY NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
ISOMERIC TRANSITION ISOTOPES
MANAGEMENT
MEASURING INSTRUMENTS
MINUTES LIVING RADIOISOTOPES
NUCLEI
RADIOISOTOPES
SPONTANEOUS FISSION RADIOISOTOPES
URANIUM ISOTOPES
055001* - Nuclear Fuels- Safeguards
Inspection
& Accountability- Technical Aspects