Xeroradiography

Xeroradiography
Diagnostics
MeSH D014986

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

  1. "Scorotron". Medcyclopaedia. GE. Archived from the original on 2012-02-05.
  2. http://www.sciencedirect.com/science/article/pii/0308912686900209
  3. Xeromammography at the US National Library of Medicine Medical Subject Headings (MeSH)

External links

 This article incorporates public domain material from the U.S. National Cancer Institute document "Dictionary of Cancer Terms".

External links


This article is issued from Wikipedia - version of the Thursday, April 28, 2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.