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THE USE OF COINCIDENCE COUNTING TECHNIQUES FOR ANALYZING LOW LEVEL PLUTONIUM CONTAMINATION ON FILTERS

Technical Report ·
OSTI ID:4625622

An air filter measurement instrument, which uses coincidence counting techniques, was developed to detect 1850 dpm of plutonium in less than two minutes in the presence of 5,000 dpm of natural (radon and thoron) alpha activity on a standard 4 inch x 8 inch filter. The 1850 dpm of plutonium is equivalent to the filter deposition obtained from a continuous air concentration of 2 x 10/sup - 12/ mu c/cc existing for 24 hours with a filter flow rate of 10 cfm; thus, reliable measurement of the collected low level plutonium contamination can be made immediately following acquisition of the filter without waiting for the natural alpha emitters to decay. (auth)

Research Organization:
General Electric Co. Hanford Atomic Products Operation, Richland, Wash.
DOE Contract Number:
AT(45-1)-1350
NSA Number:
NSA-17-039413
OSTI ID:
4625622
Report Number(s):
HW-75092
Country of Publication:
United States
Language:
English

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