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20 Cards in this Set
- Front
- Back
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Tubehead |
Tube housing that contains the x-ray tube that produces dental x-rays |
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Extension arm |
Suspends the x-ray tube head, houses the electrical wires, and allows for movement and positioning of the tubehead |
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Control panel |
Allows the dental radiographer to regulate the x-ray beam |
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The year that all dental x-ray machines must start to meet specific federal guidelines |
1974 |
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Receptor holder |
A device used to hold and align intraoral dental x-ray receptors in the mouth |
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Beam alignment device |
Used to help the radiographer position the PID in relation to the tooth and the receptor |
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Collimating device |
Restricts the size of the x-ray beam and limits radiation exposure |
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Radiation |
A form of energy carried by waves or a stream of particles |
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X radiation |
High-energy radiation produced by the collision of a beam of electrons with a metal target in an x-ray tube |
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X-ray |
A beam of energy that has the power to penetrate substances and record image shadows on receptors |
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Radiology |
The science or study of radiation as used in medicine |
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Radiograph |
An image or picture produced on a receptor by exposure to ionizing radiation. A two dimensional representation of a three-dimensional object |
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Vacuum tube |
A sealed glass tube from which most of the air had been evacuated |
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Fluorescence |
A glow that results when a fluorescent substance is struck by light, cathode rays, or x-rays |
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Cathode rays |
Discharges emitted from the negative electrode of the tube that resulted in a greenish fluorescence |
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Roentgen |
Discovered x-rays |
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F. Gordon Fitzgerald |
Father of modern dental radiography |
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Paatero |
Father of panoramic radiography |
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Impulses are ____ of one second |
1/60th |
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Why is exposure sequence template necessary? |
To prevent errors and use efficient time |
