Radiology Flashcards
1
Q
The ejection of an electron from an atom. Produces charged ion pairs or free radicals is called?
A
Ionization
2
Q
A short scale of contrast ( high contrast) results from _______ kVp and Aluminum
A long scale of contrast (low contrast) results from _______ kVp and Aluminum
A
less
more
3
Q
Area of unsharpness is called?
A
penumbra
4
Q
The time between x-ray exposure and maximum damage observed is known as?
A
latent period
5
Q
What is made of a tungsten filament and molybdenum cup and has a negative charge?
A
Cathode
6
Q
What is made of a copper arm and focal spot and has a positive charge?
A
Anode
7
Q
What determines the quality of the x-ray beam (the penetrating power of the beam)?
A
the kVp
8
Q
What is the first sign of overexposure to x-radiation?
A
erythema
