Second biannaul recalibration of two spectral gamma-ray logging systems used for baseline characterization measurements in the Hanford Tank Farms

Technical Report · Thu Aug 01 04:00:00 EDT 1996

DOI:https://doi.org/10.2172/419112· OSTI ID:419112

Koizumi, C J

The U.S. Department of Energy`s (DOE) Grand Junction Projects Office (GJPO) is establishing an initial, or baseline, characterization of gamma-ray-emitting contaminants in the subsurface of the Tank Farms at the DOE Hanford Site in the State of Washington. These baseline data are gathered by logging existing monitoring boreholes with two high-resolution passive spectral gamma-ray logging systems (SGLSs) informally known as Gamma 1 and Gamma 2. Calibration of the logging systems is crucial to the assurance of data quality. The project document Vadose Zone Monitoring Project at the Hanford Tank Farms, Spectral Gamma-Ray Borehole Geophysical Logging Characterization and Baseline Monitoring Plan for the Hanford Single-Shell Tanks specifies that both systems must be recalibrated, using the calibration standards at the Hanford borehole logging calibration center, every 6 months. DOE presents a description of the first recalibrations.

• Research Organization: Rust Geotech, Inc., Grand Junction, CO (United States)
• Sponsoring Organization: USDOE Office of Environmental Restoration and Waste Management, Washington, DC (United States)
• DOE Contract Number: AC13-86ID12584
• OSTI ID: 419112
• Report Number(s): DOE/ID/12584--281; GJPO-HAN--5; ON: DE97000396
• Country of Publication: United States
• Language: English

Related Subjects

05 NUCLEAR FUELS
44 INSTRUMENTATION
INCLUDING NUCLEAR AND PARTICLE DETECTORS
54 ENVIRONMENTAL SCIENCES
BOREHOLES
CALIBRATION STANDARDS
DATA ACQUISITION
GAMMA LOGGING
GAMMA SOURCES
HANFORD RESERVATION
HIGH-PURITY GE DETECTORS
POTASSIUM 40
RADIATION MONITORING
RADIOACTIVE WASTE MANAGEMENT
RADIUM 226
RESOLUTION
TANKS
THORIUM 232