Advanced neutron tomography

Wade J. Richards; Matthew R. Gibbons; Kevin C. Shields

doi:10.1117/12.410583

18 December 2000 Advanced neutron tomography

Wade J. Richards, Matthew R. Gibbons, Kevin C. Shields

Proceedings Volume 4142, Penetrating Radiation Systems and Applications II; (2000) https://doi.org/10.1117/12.410583
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

A neutron tomography system has been developed as nondestructive technique for quantitative assessment of impurity concentrations in metal castings. Neutrons maximize the sensitivity for certain isotrope while tomography provides the 3D density information. A specific application is the detection of hydrogen down to 200 ppm weight in aircraft engine compressor blades. A number of preprocessing corrections have been implemented for the projection images in order to achieve the detection requirements at a testing rate tree blades per hour. Among the procedures are corrections for neutron scattering and beam hardening in titanium alloy samples.

Citation Download Citation

Wade J. Richards, Matthew R. Gibbons, and Kevin C. Shields "Advanced neutron tomography", Proc. SPIE 4142, Penetrating Radiation Systems and Applications II, (18 December 2000); https://doi.org/10.1117/12.410583

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