Radiation detection method and system using the sequential probability ratio test

Patent · Tue Jul 17 00:00:00 EDT 2007

OSTI ID:912871

Nelson, Karl E ^[1]; Valentine, John D ^[2]; Beauchamp, Brock R ^[3]

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1. Livermore, CA
2. Redwood City, CA
3. San Ramon, CA

A method and system using the Sequential Probability Ratio Test to enhance the detection of an elevated level of radiation, by determining whether a set of observations are consistent with a specified model within a given bounds of statistical significance. In particular, the SPRT is used in the present invention to maximize the range of detection, by providing processing mechanisms for estimating the dynamic background radiation, adjusting the models to reflect the amount of background knowledge at the current point in time, analyzing the current sample using the models to determine statistical significance, and determining when the sample has returned to the expected background conditions.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: W-7405-ENG-48
• Assignee: The Regents of the University of California (Oakland, CA)
• Patent Number(s): 7,244,930
• Application Number: 11/205,921
• OSTI ID: 912871
• Country of Publication: United States
• Language: English

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