Construction and Test of Low Cost X-Ray Tomography Scanner for Physical-Chemical Analysis and Nondestructive Inspections

Author(s)

de Oliveira, Jose Martins, Jr. ; Germano Martins, Antonio Cesar ; Guimaraes, V ; BrandaoDeOliveira, JR ; Macario, KCD ; Genezini, FA

• Document type: Journal article
• Source: MAGNETIC FIELDS IN THE UNIVERSE: FROM LABORATORY AND STARS TO PRIMORDIAL STRUCTURES; v. 1139, p. 2-pg., 2009-01-01.

Abstract

X-ray computed tomography (CT) refers to the cross-sectional imaging of an object measuring the transmitted radiation at different directions. In this work, we describe the development of a low cost micro-CT X-ray scanner that is being developed for nondestructive testing. This tomograph operates using a microfocus X-ray source and contains a silicon photodiode as detectors. The performance of the system, by its spatial resolution, has been estimated through its Modulation Transfer Function - MTF and the obtained value at 10% of MTF is 661 mu m. It was built as a general purpose nondestructive testing device. (AU)

• FAPESP's process: 05/04727-6 - Characterization of materials using computerized tomography by X-ray transmission
• Grantee: José Martins de Oliveira Junior
• Support Opportunities: Regular Research Grants