Multiple Choice
The Moiré effect can be caused by
A) using a grid with a frequency similar to the CR laser scanning frequency
B) using a focused grid upside down in the bucky
C) using a grid cassette in the bucky
D) using a grid with a frequency similar to the CR laser scanning frequency and using a grid cassette in the bucky
Correct Answer:
Verified
Correct Answer:
Verified
Q1: The material between the lead strips of
Q2: Grids absorb almost all of the scatter
Q3: To compensate for some of the loss
Q5: Focused grids are more effective than parallel
Q6: Absorption of transmitted photons by a grid
Q7: Adding a grid or increasing grid ratio
Q8: The probability of a Compton interaction occurring
Q9: It is safe to assume that the
Q10: The field shape produced by a collimator
Q11: As compared with lower kVp exposures, when