²⁵²Cf-Source-Driven Noise Analysis Measurements with Annular High Enriched Uranium Metal Castings

Conference · Mon Oct 05 00:00:00 EDT 1998

OSTI ID:290904

Valentine, T. E. ^[1]; Mattingly, J. K. ^[1]; Mihalczo, J. T. ^[1]

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1. Oak Ridge Y-12 Plant (Y-12), Oak Ridge, TN (United States). Nuclear Materials Management and Storage Program Office

This summary describes measurements performed on four annular uranium metal castings of different enrichments to investigate the use of ²⁵²Cf-source-driven noise analysis measurements as a means to quantify the amount of special nuclear material (SNM) in the casting. Previous measurements and calculational studies have shown that many of the signatures obtained from the source-driven measurement are sensitive to fissile mass. Measurements were performed to assess the applicability of this method to standard annular uranium metal castings at the Oak Ridge Y-12 plant under verification by the International Atomic Energy Agency (IAEA) using the Nuclear Weapons Identification System (NWIS) processor. The sensitivity of the measured parameters to fissile mass was investigated using four castings each with a different enrichment. Preliminary results are presented that demonstrate the sensitivity of the measured parameter to fissile mass. However, these preliminary results do not represent an optimized measurement configuration but are intended to demonstrate possible applications of this method.

• Research Organization: Oak Ridge Y-12 Plant (Y-12), Oak Ridge, TN (United States). Nuclear Materials Management and Storage Program Office
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA), Nuclear Criticality Safety Program (NCSP)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 290904
• Report Number(s): Y/LB--15,963; CONF-981003--; ON: DE98057577
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CALIFORNIUM 252
CASTINGS
Detector
Detector-Dectector Cross Correlation Functions
Fast Plastic Scintillators
Fissile Material
Gamma Rays
HIGHLY ENRICHED URANIUM
IDENTIFICATION SYSTEMS
International Atomic Energy Agency (IAEA)
NUCLEAR MATERIALS MANAGEMENT
Neutrons
Nuclear Criticality Safety Program (NCSP)
Nuclear Weapons Identification System (NWIS)
PATTERN RECOGNITION
PERFORMANCE
RADIOISOTOPE SCANNERS
Special Nuclear Material (SNM)