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Dental Radiography
Final Exam Review
6
Medical
Undergraduate 3
12/14/2008

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Cards

Term
Ionization
Definition
The formation of ion pairs.
Term
List some properties of X-Rays
Definition
Have no mass or weight
Have no charge
Interact with matter causing ionization
Penetrates opaque tissues and structures
Affects phographic film emulsion
Travel in straight lines
Travel at speed of light
Affects biological tissue.
Term
Describe what radiopaque images look like
Definition
White or light gray
Term
Describe what radiolucent images look like
Definition
dark gray or black
Term
General/Bremsstrahlung Radiation
Definition
MAJORITY OF X-RAYS PRODUCED BY DENTAL XRAY MACHINES.
Produced when high speed electons are stopped or slowed down by the tungsten atoms of the dental x-ray tube.
Term
Characteristic Radiation
Definition
Produced when a bombarding eletron from the tube filament collides with an orbiting K electron of the tungsten target. Min of 69 kVp required to dislodge a K electron from tungsten atom. VERY SMALL PART OF X=RAYS PRODUCED
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