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MOD 6 Key Terms
Matching Week 2 Key Terms MOD 6
| Question | Answer |
|---|---|
| Ionizing radiation | Radiation capable of producing ions. |
| Automatic processor | Machine that develops, fixes, washes and dries radiographic film. |
| Kilovoltage | One kilovolt=1,000 volts---high kilovoltage is necessary for dental x-rays. |
| Shadow casting | Where x-rays cast shadows of images onto the film. |
| ALARA | As low as reasonably achievable-using the least amount of radiation to produce the best radiographic image. |
| Safelighting | Light that can be used in the darkroom during development of x-rays. |
| Developer | Chemical that makes the latent image visible. |
| Lethal dose | Amount of radiation that causes death to an organism. |
| Intraoral radiograph | Radiographic film is placed inside the mouth. |
| Extraoral radiograph | Radiographic film is placed outside the mouth. |
| Penumbra | Partial shadow or fuzzy outline of an image. |
| Elongation | Distortion of an image where the tooth appears longer than the true size. |
| Radiographic density | Overall lightness or darkness of the image, which can be controlled by changing the milliampperage and exposure time. |
| Object-film distance | Distance between the object being radiographed and the film. |
| Target-film distance | Distance between the focal spot on the target and the film. |
| Target-surface distance | Distance between the focal spot on the target and the skin of the patient. |
| Lead apron | Protective barrier made of lead that shields the patient's gonadal areas during x-ray exposures. |
| Dosimeter | Radiation measuring device-worn as a badge by dental staff. |
Created by:
mgarrett
on 2010-11-18