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Proceedings Paper

Advanced neutron tomography
Author(s): Wade J. Richards; Matthew R. Gibbons; Kevin C. Shields
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Paper 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.

Paper Details

Date Published: 18 December 2000
PDF: 12 pages
Proc. SPIE 4142, Penetrating Radiation Systems and Applications II, (18 December 2000); doi: 10.1117/12.410583
Show Author Affiliations
Wade J. Richards, Univ. of California Davis/McClellan Nuclear Radiation Ctr. (United States)
Matthew R. Gibbons, Univ. of California Davis/McClellan Nuclear Radiation Ctr. (United States)
Kevin C. Shields, Univ. of California Davis/McClellan Nuclear Radiation Ctr. (United States)


Published in SPIE Proceedings Vol. 4142:
Penetrating Radiation Systems and Applications II
F. Patrick Doty; H. Bradford Barber; Hans Roehrig; Edward J. Morton, Editor(s)

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