MEDICINE
RADIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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doubled
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halved
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remain the same
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cut to one-fourth of the original time
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Detailed explanation-1: -The exposure time used for the E-Plus film was half that used for the D speed film, i.e., 0.20, 0.12 and 0.05 seconds respectively.
Detailed explanation-2: -The film typically used for the intraoral bitewing exam falls into three film speed classes-D (slowest), E and F-speed (fastest). Like photographic film, the faster the film, the less exposure it needs. Film speed can be an important aspect in determining the amount of radiation exposure received by a patient.
Detailed explanation-3: -The sensitivity of a particular film determines the amount of exposure required to produce an image. A film with a high sensitivity (speed) requires less exposure than a film with a lower sensitivity (speed).
Detailed explanation-4: -The most popular dental x-ray film is D-speed film, called Ultraspeed. This film requires approximately 40% more exposure time than Ektaspeed.