Xeroradiography
Lua error in Module:Infobox at line 235: malformed pattern (missing ']'). Xeroradiography is a type of x-ray(vision) in which a picture of the body is recorded on paper rather than on film. In this technique, a plate of selenium, which rests on a thin layer of aluminium oxide, is charged uniformly by passing it in front of a scorotron.[1] The process was developed by engineer Dr. Robert C. McMaster in 1950.[2]
As X-ray photon impinges on this amorphous coat of selenium, charges diffuse out, in proportion to energy content of the X-ray. This occurs as a result of photoconduction. The resulting imprint, in the form of charge distribution on the plate, attracts toner particles, which is then transferred to reusable paper plates. In contrast to conventional X-rays, photographic developers are not needed. Hence the term xeroradiography; 'xero' meaning dry in Greek. It requires more radiation exposure. Historically used in mammography prior to the advent of digital mammography.
Xeromammography is a form of xeroradiography.[3]
References
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- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Xeromammography at the US National Library of Medicine Medical Subject Headings (MeSH)
External links
- Xeroradiography entry in the public domain NCI Dictionary of Cancer Terms
This article incorporates public domain material from the U.S. National Cancer Institute document "Dictionary of Cancer Terms".
External links
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