Xeroradiography

Xeroradiography

Xeroradiography is a type of x-ray 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 ' [http://www.medcyclopaedia.com/library/topics/volume_i/s/scorotron.aspx scorotron] '. 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 [http://en.wiktionary.org/wiki/photoconduction 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.Its use is in mammography.

External links

* [http://www.cancer.gov/Templates/db_alpha.aspx?CdrID=46655 Xeroradiography] entry in the public domain NCI Dictionary of Cancer Terms
*

External links

*http://www.medcyclopaedia.com/library/topics/volume_i/x/xeroradiography.aspx


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  • xeroradiography — [zir΄ō rā΄dē äg′rə fē] n. 〚 XERO + RADIOGRAPHY〛 an X ray technique that quickly produces a detailed xerographic image of the X rayed part: used esp. for the early detection of breast tumors * * * …   Universalium

  • xeroradiography — [zir΄ō rā΄dē äg′rə fē] n. [ XERO + RADIOGRAPHY] an X ray technique that quickly produces a detailed xerographic image of the X rayed part: used esp. for the early detection of breast tumors …   English World dictionary

  • xeroradiography — elektrorentgenografija statusas T sritis Standartizacija ir metrologija apibrėžtis Atvaizdų gavimas peršviečiant objektą rentgeno spinduliuote ir fiksuojant atvaizdą elektrografijos metodais. atitikmenys: angl. xeroradiography; X ray xerography… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • xeroradiography — elektrorentgenografija statusas T sritis fizika atitikmenys: angl. xeroradiography; X ray xerography vok. Xeroradiographie, f rus. электрорентгенография, f pranc. xeroradiographie, f …   Fizikos terminų žodynas

  • xeroradiography — noun Date: 1949 radiography used especially in mammographic screening for breast cancer that produces an image using X rays in a manner similar to the way an image is produced by light in xerography …   New Collegiate Dictionary

  • xeroradiography — noun A method of X ray photography which uses an electrically charged metal plate instead of film. See Also: xeroradiograph …   Wiktionary

  • xeroradiography — Radiography using a specially coated charged plate instead of x ray film, developing with a dry powder rather than liquid chemicals, and transferring the powder image onto paper for a permanent record; edge enhancement …   Medical dictionary

  • Xeroradiography — Ксерорадиография; электрорентгенография …   Краткий толковый словарь по полиграфии

  • xeroradiography — xe·ro·radiography …   English syllables

  • xeroradiography — n. X ray imaging produced by exposing an electrically charged plate and then dusting it with a fine blue powder. The powder is then transferred to paper. This technique has been superseded by computerized radiography …   The new mediacal dictionary

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