High-Resolution CT Tests Ceramic Parts

摘要

A high-resolution X- ray computed tomography system uses a scintillation screen, fiber-optically coupled to a thermoelectrically cooled line array CCD for testing ceramic pans. High spatial resolution capability is an important feature for testing advanced ceramics because the most sensitive defect size for ceramic parts is small (～10-100 μm). Over the years, Tsinghua University has engaged in research on industrial X-ray computed tomography (X-CT) systems for testing ceramic parts. Two microfocal X-CT systems, using two types of detectors respectively, were constructed in an earlier phase.