Comparison of Stress Measurements by X-Rays with Three Different Detectors and a Strongly Fluorescing Specimen.
Abstract
Measurements on the heat affected zone of a weldment are presented using the position sensitive detector and a normal diffractometer equipped with a scintillation detector and a solid state detector. The sample, a surface ground titanium alloy, provided a classic applications problem for the X-ray technique from which a real analysis of the position sensitive detector could be made. The diffraction profile from the Ti alloy is very broad and the fluorescence produces a high background. The fluorescence is easily rejected using a solid state detector, however, the time of analysis is very long. With the position sensitive detector, the combination of increased energy discrimination over the scintillation detector and the simultaneous measurement of many data points over the broad peak enabled the measurements to be made for the same accuracy in much shorter times than for either the solid state detector or the scintillation detector. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 20, 1977
- Accession Number
- ADA040613
Entities
People
- Jerome B. Cohen
- Michael R. James
Organizations
- Northwestern University