x-ray film


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Related to x-ray film: radiographic film

film

 [film]
1. a thin layer or coating.
2. a thin sheet of material (e.g., gelatin, cellulose acetate) specially treated for use in photography or radiography; used also to designate the sheet after exposure to the energy to which it is sensitive.
bite-wing film an x-ray film with a protruding tab to be held between the upper and lower teeth, used for a bite-wing radiograph of oral structures.
gelatin film, absorbable a sterile, nonantigenic, absorbable, water-insoluble coating used as an aid in surgical closure and repair of defects in the dura mater and pleura and as a local hemostatic.
spot film a radiograph of a small anatomic area obtained either by rapid exposure during fluoroscopy to provide a permanent record of a transiently observed abnormality, or by limitation of radiation passing through the area to improve definition and detail of the image produced. See also spot-film radiography.
x-ray film film sensitized to x-rays, either before or after exposure.
Cross-sectional view of radiographic film. The bulk of the film is the base. The emulsion contains the diagnostic information. From Bushong, 2001.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

x-ray film

A special photographic film with a sensitive emulsion layer that blackens in response to the light from intensifying screens. The emulsion has silver halide crystals immersed in gelatin. Single-emulsion film has the emulsion on one side of the cellulose base. It is used for digital, mammographic, and extremity imaging, in which high detail is necessary. Duplitized film has the emulsion on both sides of the cellulose base. It is used for general-purpose radiological studies.
See also: film
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
A small range or latitude of densities and contrast are seen on x-ray film. Often many densities are confusing to read or misread for something else.
Even so, one must always bear in mind that the system is only an aid, and that any final identification will be made by an expert's visual comparison of x-ray films.
Although the film itself is located intraorally and is difficult to see, the collimator ring is located extra-orally when the assembled XCP is placed in the patient's mouth because lining up the plane of the opening of the x-ray tube with the plane of the collimator ring will also align the plane of the x-ray tube opening parallel with the plane of the x-ray film. When the film is placed in the film holder, the side of the film facing the collimator ring (and consequently the x-ray beam) must be the white exposure side of the film.
A shredder cuts used X-ray film into strips that are fed into a reactor, where they are mixed with the enzyme under alkaline conditions.
To put the method into practice, a pilot plant to reprocess 1 ton of used X-ray film per day is scheduled to open in Osaka within 2 years, he told Science News.
In 1918, the first commercial x-ray film was introduced, followed shortly by a double emulsion product.
A revolutionary system could lead to the elimination of X-ray film technology.
They place an X-ray film from a mammogram on the machine, and a light beam scans the image.
He estimates that fewer than half of the dentists in the United States have switched to "E speed" X-ray film. Available since 1981, the high-speed film requires half the X-ray dose of the most commonly used film.