Tenney, Gerold H. American Society for Nondestructive Testing, Inc., Los Alamos, New Mexico.
Clark, George L. Formerly, Department of Chemistry, University of Illinois at Urbana-Champaign, Champaign, Illinois.
Berger, Harold Industrial Quality, Inc., Gaithersburg, Maryland.
Last reviewed:January 2020
- Absorption laws
- General principles and techniques
- Radiographic inspection
- Flash radiography
- Monochromatic radiography
- Electronic radiography or radioscopy
- Digital radiologic imaging
- One-step radiography
- Paper radiography
- Photothermographic radiography
- Photostimulable phosphor radiography
- Neutron radiography
- Proton radiography
- Related Primary Literature
- Additional Reading
The technique of producing a photographic image of an opaque specimen by the penetration of radiation such as gamma rays, x-rays, neutrons, or charged particles. When a beam of radiation is transmitted through any heterogeneous object, it is differentially absorbed, depending upon the varying thickness, density, and chemical composition of this object. The image registered by the emergent rays on a photographic film adjacent to the specimen under examination constitutes a shadowgraph or radiograph of its interior. Radiography is the general term applied to this nondestructive film technique of testing the gross internal structure of any object, whether it be of the chest of a patient for evidence of tuberculosis, silicosis, heart pathology, or embedded foreign objects; of bones in case of fractures or of arthritis or other bone diseases; or of a weld in a pipe to observe cracks, inclusions, or voids. Radiography with x-rays is commonly used in both medical and industrial applications. Industrial work also involves gamma and neutron radiography. Radiography with charged particles is under development. Most of this discussion will be concerned with radiography with x-rays and gamma rays. See also: Charged particle interactions; Gamma rays; Neutron; X-rays
The content above is only an excerpt.
for your institution. Subscribe
To learn more about subscribing to AccessScience, or to request a no-risk trial of this award-winning scientific reference for your institution, fill in your information and a member of our Sales Team will contact you as soon as possible.
to your librarian. Recommend
Let your librarian know about the award-winning gateway to the most trustworthy and accurate scientific information.
AccessScience provides the most accurate and trustworthy scientific information available.
Recognized as an award-winning gateway to scientific knowledge, AccessScience is an amazing online resource that contains high-quality reference material written specifically for students. Contributors include more than 10,000 highly qualified scientists and 46 Nobel Prize winners.
MORE THAN 8700 articles covering all major scientific disciplines and encompassing the McGraw-Hill Encyclopedia of Science & Technology and McGraw-Hill Yearbook of Science & Technology
115,000-PLUS definitions from the McGraw-Hill Dictionary of Scientific and Technical Terms
3000 biographies of notable scientific figures
MORE THAN 19,000 downloadable images and animations illustrating key topics
ENGAGING VIDEOS highlighting the life and work of award-winning scientists
SUGGESTIONS FOR FURTHER STUDY and additional readings to guide students to deeper understanding and research
LINKS TO CITABLE LITERATURE help students expand their knowledge using primary sources of information