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Radiology ch 3

QuestionAnswer
Intensity is the what? The total energy contained in the x-ray beam in a specific area at a given time
Intensity is affected by what? The kilovoltage, milliamperage, exposure time, and distance.
The inverse square law is used to explain what? How distance affects the intensity of the x-ray beam
What is placed in the path of the x-ray beam to reduce the intensity and remove the low-energy x-rays from the beam ? An aluminum filter
The thickeness of aluminum placed in the path of the x-ray beam that reduces the intensity by half is termed what? Half-value layer
Quantity refers to what? The number of x-rays produced and is controlled by the milliamperage
Increased kilovoltage produces x-rays with what? Increased energy, shorter wavelength, and increased penetrating power
Kilovoltage affects what? Density and contrast
Quality refers to the what? Mean(average) energy or penetrating ability of the x-ray beam and is controlled by the kilovoltage
Exposure time also influences what? The number of X-rays produced
Amperage determines what? The amount of electrons passing through the cathode filament
Milliamperage regulates the temperature of the what? Cathode filament
The overall darkness or blackness of an image is called what? Density
The term that describes how dark and light areas are differentiated on an image is called? Contrast
If the target receptor distance is doubled, the resultant beam will be? One fourth as intense
Current kilovoltage range for dental X-ray 60-70 kV
Current milliamperage range used for dental X-rays ? 60-8 mA
Created by: Jlsmom2612
 

 



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