What is the primary purpose of total filtration?
To eliminate low energy x-ray photons from the x-ray beams
What is it meant by “hardening the beam”
same thing as filtration
What happens to the average energy of the beam if we use total filtration
it increases
What are the four filters in order from target to patient?
glass envelope, oil, aluminum filter, and mirror
What is the minimal amount of total filtration required for use above 70 kVp?
2.5 mm Al/Eq
What does HVL 2 mean?
Half-value layer: the amount of material that will decrease the intensity of the primary beam to 1/2 of its og value.
2= 25%
What is the purpose of the compensating filter?
To help even out the contrast of the image with unequal part thickness/to protect the thin part of the body
Describe a position of the compensating filter could be used?
AP foot x-ray
What is the difference between filtration and shielding?
Filter- removes low energy
Shielding- blocking beams, lead
What material is shielding made of
lead
What happens to receptor exposure if we increase total filtration?
N/A
What happens to contrast if we increase total filtration?
N/A
What happens to contrast if we use a compensating filter?
it decreases
What is the diagnostic range of x-ray
50-150
