Abstract
X-ray computerised tomography (CT) is a non-contacting and non-destructive inspection technique which provides cross-sectional images in different planes through a component. CT images also provide information on the local material X-ray attenuation coefficients at each point in the image. In general, for a particular material, X-ray attenuation is approximately proportional to material density. In practice, however, a number of instrumental factors including the non-linear effects of “beam hardening” and diffuse scattered radiation complicate the quantitative measurement of density variations in materials using CT. Techniques have been developed for the quantitative non-destructive mapping of density variations in materials and implemented on TOMOHAWK — AEA Technology's PC-based CT system, which is used in conjunction with real-time X-ray imaging equipment. Results are given from the application of these techniques to the measurement of density variations within powder compacts both in the green and sintered states. Other recent TOMOHAWK developments and applications are also briefly reviewed.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
