NASA NTRS · 19710000128
Locating tube blockage that X-ray cannot detect
Abstract
Alternate choices to X-ray use in detecting foreign materials in metal assemblies are available, including negative radiography, neutron radiography, liquid-crystal inspection and ultrasonics. Advantages and disadvantages of each method are given. Report is valuable in testings and inspections, including heat exchangers and piping systems.
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Hendron, J. A.. 1971-05-01. Locating tube blockage that X-ray cannot detect. https://ntrs.nasa.gov/citations/19710000128
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