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X-ray diagnostic equipment

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dc.date.accessioned 2018-10-14T01:46:21Z
dc.date.available 2018-10-14T01:46:21Z
dc.date.issued 1990
dc.identifier.uri http://hdl.handle.net/20.500.12091/484
dc.description.abstract X-rays are invisible. Because of their high energy and short wavelength they can penetrate almost all materials, but are absorbed to a different extent by different tissues. In the human body, absorption is high for bones, and low for muscles and other soft tissues. These differences in absorption can be shown on a photographic film as differences in density: the result is a radiograph. Thus, radiographic examination consists of irradiating a part of the patient with a uniform beam of X—rays and recording the emerging rays on a double emulsion film sandwiched between a pair of fluorescent screens. The screens convert the X-rays into light, which in turn exposes the X-ray film. The screens and the film are enclosed in a cassette for protection from daylight. After the exposure, the film must be processed, manually or automatically, in a darkroom by means of developer and fixer solutions. X-ray examinations should be ordered only by physicians or experienced clinical health workers. "Routine" examinations are seldom indicated. A few of the more common indications and examinations that can be performed with diagnostic X-ray equipment are listed below (this is not a complete list). en_US
dc.language.iso en_US en_US
dc.publisher EWH en_US
dc.subject X-Ray en_US
dc.subject UMDNS: 13267 en_US
dc.title X-ray diagnostic equipment en_US
dc.type Book chapter en_US


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