Data processing: measuring – calibrating – or testing – Measurement system – Measured signal processing
Reexamination Certificate
2011-06-07
2011-06-07
Dunn, Drew A (Department: 2857)
Data processing: measuring, calibrating, or testing
Measurement system
Measured signal processing
Reexamination Certificate
active
07957939
ABSTRACT:
Methods of detecting radioactivity in dynamic situations in which radiation is detected from large and small radioactive objects with at least one radiation detector as the objects pass through the field of view and combinations are made from those measurements which are either adjacent in time, from multiple detectors, or at different energies. An elevated signal is reported when an analysis of the various combinations shows an elevated signal in anyone combination. Small amounts of radioactivity can be detected even in the presence of large amounts.
REFERENCES:
patent: 3665188 (1972-05-01), Gutmann
patent: 4187428 (1980-02-01), Pochwalski et al.
Bronson Frazier
Russ William
Canberra Industries, Inc.
Carstens David W.
Carstens & Cahoon LLP
Dunn Drew A
Sun Xiuquin
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