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Neutron radiographic testing for hydrogen embrittlementNeutron radiography (N-ray) inspection is similar to X-ray inspection in that both depend on variations in attenuation to achieve object contrast. However, effectiveness of methods differs significantly when certain combinations of elements are examined. Mass attenuation coefficient for N-rays is function of both scattering and capture possibilities for each element; thus, density of thickness of material is less important in determining its transparency to neutrons.
Document ID
19770000407
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Dunstan, J.
(Rockwell Intern. Corp.)
Date Acquired
August 8, 2013
Publication Date
March 1, 1978
Publication Information
Publication: NASA Tech Briefs
Volume: 2
Issue: 4
ISSN: 0145-319X
Subject Category
Mechanics
Report/Patent Number
MFS-24193
Accession Number
77B10407
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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