Matching Week 2 Key Terms MOD 6
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Ionizing radiation | Radiation capable of producing ions.
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| Automatic processor | Machine that develops, fixes, washes and dries radiographic film.
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| Kilovoltage | One kilovolt=1,000 volts---high kilovoltage is necessary for dental x-rays.
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| Shadow casting | Where x-rays cast shadows of images onto the film.
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| ALARA | As low as reasonably achievable-using the least amount of radiation to produce the best radiographic image.
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| Safelighting | Light that can be used in the darkroom during development of x-rays.
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| Developer | Chemical that makes the latent image visible.
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| Lethal dose | Amount of radiation that causes death to an organism.
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| Intraoral radiograph | Radiographic film is placed inside the mouth.
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| Extraoral radiograph | Radiographic film is placed outside the mouth.
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| Penumbra | Partial shadow or fuzzy outline of an image.
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| Elongation | Distortion of an image where the tooth appears longer than the true size.
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| Radiographic density | Overall lightness or darkness of the image, which can be controlled by changing the milliampperage and exposure time.
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| Object-film distance | Distance between the object being radiographed and the film.
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| Target-film distance | Distance between the focal spot on the target and the film.
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| Target-surface distance | Distance between the focal spot on the target and the skin of the patient.
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| Lead apron | Protective barrier made of lead that shields the patient's gonadal areas during x-ray exposures.
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| Dosimeter | Radiation measuring device-worn as a badge by dental staff.
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Created by:
mgarrett
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