film badge

(redirected from film badges)
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Related to film badges: Thermoluminescent Dosimeter

film badge

 [film baj]
a pack of radiographic film or films worn as a badge, used for the detection and approximate measurement of radiation exposure of personnel.

film badge

(baj) a pack of radiographic film or films, usually worn on the body during potential exposure to radiation in order to detect and quantitate the dosage of exposure.

film badge

Radiation safety A dosimeter worn by radiation workers to monitor radiation exposure; FBs contain a piece of film that is darkened by radiation, and may contain filters which shield parts of the film from certain types of radiation. See Dosimetry.

film badge

(film baj)
Small packet of x-ray film and filters worn by radiation workers to monitor exposure to radiation on a monthly basis.
See also: pocket dosimeter, thermoluminescent dosimeter

film badge

A small light-tight container for a piece of photographic film which is carried, pinned to the clothing, by all staff in X-ray and radiotherapy departments. The films are regularly developed and a fogged film indicates that accidental exposure to radiation has occurred. The matter is then investigated.

film badge

(film baj)
Device consisting of a strip of photographic film in a lightproof envelope, worn by dentists and ancillary personnel to monitor occupational exposure to x-rays.
Synonym(s): radiation dosimeter.

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.

film badge
a radiographic film worn as a badge and used for detection and approximate measurement of radiographic exposure of personnel.
film changing device
enables the radiographer to change films quickly when a series of shots is being used, e.g. angiography.
copy film
film with a special reversal emulsion so that a contact print can be made with white light. Called also duplicating film.
dental film
nonscreen film used in dental radiography.
duplicating film
see copy film (above).
flat film
a film lacking in radiographic contrast.
gelatin film
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.
film label
details of the animal examined and when and where the examination took place. Usually made on the x-ray by photographic means or by using radiopaque tape.
film marker
any device, usually lead letters, placed on the film to indicate which part of the animal was examined and the projection used.
nonscreen film
film for getting very fine detail, used without a cassette and requiring long exposure time. This film is now banned in some parts of the world.
plain film
an x-ray film taken without contrast medium or other special effects. Often an exploratory or scout film.
spot film
a radiograph of a small anatomic area obtained (1) by rapid exposure during fluoroscopy to provide a permanent record of a transiently observed abnormality, or (2) by limitation of radiation passing through the area to improve definition and detail of the image produced.
standard film
fine-grain, medium-speed with wide tolerance for exposure times.
x-ray film
film sensitized to x-rays, either before or after exposure.
References in periodicals archive ?
All of the following are advantages of thermoluminescent dosimeters compared with film badges except:
In a detailed list of suggestions to practitioners, Rollins urged the use of lead-lined boxes to enclose x-ray tubes and admonished x-ray technicians, as they were then known, to wear a special film badge he had designed to warn them of excessive exposure.
At the end of the monitoring period, perhaps a month, a densitometer is used to measure the optical density of the filter images on the film badge and determine the amount of radiation to which the film was exposed.
A thermoluminescent dosimeter might look very similar to a film badge personnel dosimeter, but it operates completely differently.
A mid-1950s National Bureau of Standards test found that several laboratories erred by plus-or-minus-100 percent in their reading of film badges similar to those used at Crossoards.
6 Table 2 Paired T -test Data for Left and Right Hand Film Badges Mean Difference t df Sig.
The top brass must have thought I was in some sort of danger because I was issued with a film badge.
They even said the film badge must have been issued to me as part of a simulation exercise.
Although film badges have been in use for approximately 60 years, they largely have been replaced by pocket dosimeters.
The film badge cannot measure exposures less than 10 mR.