A satisfactory abdominal radiograph is produced using a 12:1 grid (grid-conversion factor [GCF] = 5.5), 30 mAs, and 85 kVp.A second film is requested using a 16:1 grid (GCF = 6.75).What mAs is needed to produce the second radiograph with comparable radiographic density?
Correct Answer:
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Q16: The atomic interaction that produces scatter radiation
Q17: Photon absorption within the body occurs as
Q18: As kVp increases,
A)contrast decreases.
B)scatter increases.
C)image receptor exposure
Q19: A grid is used to improve
A)subject density.
B)image
Q20: The radiopaque strips
A)absorb scatter.
B)are made of dense
Q22: A portable radiograph is taken of a
Q23: A Potter-Bucky diaphragm must move the grid
Q24: If the lead strips are 2.0 mm
Q25: If the lead strips are 4.0 mm
Q26: What is the frequency of a grid
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