Radioactive anomaly discrimination from spectral ratios

Maniscalco, James; Sjoden, Glenn; Chapman, Mac Clements

Title: Radioactive anomaly discrimination from spectral ratios

Patent · Tue Aug 20 00:00:00 EDT 2013

OSTI ID:1093253

Maniscalco, James; Sjoden, Glenn; Chapman, Mac Clements

A method for discriminating a radioactive anomaly from naturally occurring radioactive materials includes detecting a first number of gamma photons having energies in a first range of energy values within a predetermined period of time and detecting a second number of gamma photons having energies in a second range of energy values within the predetermined period of time. The method further includes determining, in a controller, a ratio of the first number of gamma photons having energies in the first range and the second number of gamma photons having energies in the second range, and determining that a radioactive anomaly is present when the ratio exceeds a threshold value.

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Research Organization:: Quintell of Ohio, LLC (Beachwood, OH)

Sponsoring Organization:: USDOE

DOE Contract Number:: FC52-09NA29293

Assignee:: Quintell of Ohio, LLC (Beachwood, OH)

Patent Number(s):: 8,513,618

Application Number:: 13/338,538

OSTI ID:: 1093253

Country of Publication:: United States

Language:: English

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