Radiant energy – Invisible radiant energy responsive electric signalling – Semiconductor system
Reexamination Certificate
2007-10-23
2007-10-23
O'Shea, Sandra (Department: 2875)
Radiant energy
Invisible radiant energy responsive electric signalling
Semiconductor system
C250S336100, C250S358100, C376S159000
Reexamination Certificate
active
10828010
ABSTRACT:
A real-time method and computer system for identifying radioactive materials which collects gamma count rates from a HPGe gamma-radiation detector to produce a high-resolution gamma-ray energy spectrum. A library of nuclear material definitions (“library definitions”) is provided, with each uniquely associated with a nuclide or isotope material and each comprising at least one logic condition associated with a spectral parameter of a gamma-ray energy spectrum. The method determines whether the spectral parameters of said high-resolution gamma-ray energy spectrum satisfy all the logic conditions of any one of the library definitions, and subsequently uniquely identifies the material type as that nuclide or isotope material associated with the satisfied library definition. The method is iteratively repeated to update the spectrum and identification in real time.
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Bianchini Greg M.
Howard Douglas E.
Jessup James L.
Miller Wayne O.
Rowland Mark S.
Lee John H.
O'Shea Sandra
Tak James S.
The Regents of the University of California
Zettl Mary
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