Industrial Computed Tomography System with High Energy Gamma- Ray Beam
H. Toyokawa 1, H. Kanada 2, R. Kuroda 1, T. Kaihori 1, K. Yamada 1, T. Uomoto 2
1National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan,
2Institute of Industrial Science, The University of Tokyo, Tokyo, Japan
There is a strong demand for nondestructive testing (NDT) of industrial products, such as metal diecasts, sintered materials, and concrete structures with good spatial and density resolutions. A radiography system using monochromatic high-energy photons is one of the best choices. We have developed a radiography system for industrial NDT using a high-energy and quasi-monochromatic gamma-ray beam, which was produced with an electron accelerator via the laser-Compton scattering. Spatial and density resolutions of the radiography system, which were measured in high- and low-contrast resolutions, were
0.9 mm and 3%, respectively.
Keywords Radiography, CT, Gamma-ray, laser-Compton, accelerator
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