Heat exchanger tube inspecting apparatus, has computed tomography processing unit for subjecting radiation strength signals detected by radiation detector and imaging cross section of tube to be inspected

摘要

The apparatus has a radiation detector (12) inserted in a heat exchanger tube (10a) to be inspected. A radiation source (14) inserted in the tubes surrounds the tube to be inspected. A computed tomography (CT) processing unit subjects radiation strength signals that is detected by the radiation detector, to CT processing. A cross section of the tube to be inspected is imaged by the CT processing.