7.
The three sources of natural background radiation are:
________________________________________________________________
________________________________________________________________
________________________________________________________________
8.
List the standard structural parts of the dental x-ray machine as identified.
a. Usually mounted behind a protective shield: _________________________
b. Houses the dental x-ray tube: ____________________________________
c.
The tube head is suspended from this object: ________________________
9.
Scattered/secondary radiation is dangerous to the ________________________.
10.
_____________________________________ are those x-rays (photons) and
photo-electrons that have undergone a change in direction after interaction with
atoms and molecules.
11.
What is used to absorb the low energy, long wavelength x-rays (photons) and
allow the high energy, short wavelength x-rays (photons) to pass through?
________________________________________________________________
12.
How is it possible to expose only the area necessary for exposure when taking
x-rays?
________________________________________________________________
________________________________________________________________
MD0512
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