Report on the Gamma Ray Radiography of Pipe Welds
Abstract
Welded pipes with inside diameters of 2,4,6 and 8 inches were radiographed using the standard gamma ray techniques. The film-to-source distances employed were those obtained by placing the radium on the axes of the pipe with the films on the outside. Several additional exposures were made with the film on the inside of the pipe and the radium at a distance of 18 inches. It was found that gamma ray radiographs prepared on welded pipe 8 inches in diameter or less with wall thickness of 0.45 inch or less are lacking in contract, definition and sensitivity. Thus only large defects can be located and porosity cannot be detected.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 11, 1938
- Accession Number
- AD1155474
Entities
People
- C. W. Briggs
- R. A. Gezelius
Organizations
- United States Naval Research Laboratory