Automated Radiography: A State-of-the-Art Survey
Abstract
Radiography employing x-rays and gamma rays is the oldest of the sophisticated methods of nondestructive evaluation. As conventionally practiced, the method involves the use of photographic film or paper, specially prepared for radiography, with the attendent steps of exposure, processing, and finally, visual examination by a skilled 'reader' for indications of flaws in the test piece. While film radiography has certain inherent graphic record of the test, there are many instances where the elimination of film or human interpretation of the image or both would be highly desirable. This publication surveys briefly the current status of those technologies which are crucial to automated radiography, as well as progress to date in the realization of automated radiography. Two major impediments to fully automated radiography have prevented implementation on an appreciable scale. First, filmless image receptors of sensitivity, resolution, and equivalent image size to radiographic film have yet to emerge. Second, until quite recently, the technical means for automatic image interpretation have not been available. It now appears that both these impediments are likely to be overcome, and that cost-effective fully automated inspection for certain applications, such as artillery shells or components thereof will become a reality in the next few years.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1978
- Accession Number
- ADA129063
Entities
People
- C. G. Gardner