System and method for passive assay of holdup deposits in nuclear piping

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United States of America Patent

PATENT NO 11137516
APP PUB NO 20200264333A1
SERIAL NO

16649305

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Disclosed herein are a method, apparatus, and software for passive, non-destructive assay of holdup deposits in nuclear piping by in-pipe apparatus. A detector deployed within a pipe is collimated to observe radiation impinging radially inward from decay of deposits that lie on the pipe wall. A radiation detector is centered in the pipe and collimated by a pair of coaxial shielding discs disposed equidistant from the detector. This arrangement causes radiation from a truncated cylinder of pipe deposit within a field of regard to impinge on the detector, while precluding radiation emanating from pipe walls beyond the field of regard from reaching the detector. Hence, observations are unique to a known cylindrical length of pipe. The detector assembly is translated through pipes by an autonomous mobile robotic apparatus. Computer software controls the robotic apparatus, logs data, and post-processes to assay deposits.

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Patent Owner(s)

Patent OwnerAddress
CARNEGIE MELLON UNIVERSITY5000 FORBES AVENUE PITTSBURGH PA 15213

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Jones, Heather Louise Pittsburgh, US 1 2
Maley, Siri Katrina Pittsburgh, US 1 2
Sapunkov, Oleg Borisovich Pittsburgh, US 1 2
Whittaker, William Lawrence Pittsburgh, US 3 381

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