System for measuring the uranium concentration of liquid effluents from the enriched uranium recovery facility at the Oak Ridge Y-12 Plant

Technical Report · Thu Jan 01 00:00:00 EST 1976

DOI:https://doi.org/10.2172/4120730· OSTI ID:4120730

Gallman, R. A.

A real-time, on-line monitor has been developed which can measure the uranium concentration of enriched uranium liquid effluent. The monitor uses the thorium L x-ray activity from the decay of $sup 234$U as the basis for the measurement. A sodium iodide/ thallium-activated scintillation crystal, optically coupled to a photomultiplier, is used as the detector. Evaluation results reveal that the limit of error over the uranium concentration calibration range is less than 1 wt ppM, and the lower limit of sensitivity is 0.50 wt ppM. This monitor cannot be used on a recovery facility which contains fission products. The monitor is installed in the Oak Ridge Y-12 Plant enriched uranium recovery facility and has been operating satisfactorily for some time. (auth)

• Research Organization: Oak Ridge Y-12 Plant (Y-12), Oak Ridge, TN (United States)
• DOE Contract Number: W-7405-ENG-26
• NSA Number: NSA-33-012091
• OSTI ID: 4120730
• Report Number(s): Y-2004
• Resource Relation: Other Information: Orig. Receipt Date: 30-JUN-76
• Country of Publication: United States
• Language: English

Related Subjects

N46110* -Instrumentation-Radiation Detection Instruments- General Detectors & Monitors
N52100 -Nuclear Materials & Waste Management-Accountability & Safeguards
440101* -Instrumentation-Radiation Instrumentation- General Detectors & Monitors
*LIQUID WASTES- RADIATION MONITORING
*RADIATION MONITORS- DESIGN
*URANIUM- SAFEGUARDS
ENRICHED URANIUM
ON-LINE MEASUREMENT SYSTEMS
PERFORMANCE
RECOVERY
SCINTILLATION COUNTERS
Y-12 PLANT