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Title: Radioactive anomaly discrimination from spectral ratios

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.
Authors:
; ;
Publication Date:
OSTI Identifier:
1093253
Report Number(s):
8,513,618
13/338,538
DOE Contract Number:
FC52-09NA29293
Resource Type:
Patent
Research Org:
Quintell of Ohio, LLC (Beachwood, OH)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS