The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 14, 2004
Filed:
Aug. 29, 2002
Masaru Hirabayashi, Ibaraki-ken, JP;
Kuniaki Ara, Ibaraki-ken, JP;
Hitoshi Hayashida, Ibaraki-ken, JP;
Japan Nuclear Cycle Development Institute, Ibaraki-ken, JP;
Abstract
An apparatus for non-destructively inspecting an arbitrary heat exchanger tube among a group of heat exchanger tubes. The apparatus includes a radiation detector inserted in a heat exchanger tube to be inspected, at least one radiation source inserted in a plurality of heat exchanger tubes surrounding the heat exchanger tube to be inspected, and a CT processing unit. A cross section of the heat exchanger tube to be inspected is imaged by the CT processing. Also, by setting at least one radiation source in an inner portion of the heat exchanger tube, on the inner side of a group of heat exchanger tubes or on the outer side of the group of heat exchanger tubes, and by setting at least one radiation detector carrying a collimator on the outer side of the group of heat exchanger tubes, a cross section of the group of heat exchanger tubes can be imaged by the CT processing.