X-ray diagnostic equipment
| dc.date.accessioned | 2018-10-14T01:46:21Z | |
| dc.date.available | 2018-10-14T01:46:21Z | |
| dc.date.issued | 1990 | |
| 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.identifier.uri | http://hdl.handle.net/20.500.12091/484 | |
| 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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