If the OID is 8 inches and the SID is 72 inches, what is the magnification factor?
If a radiograph is produced using a milliampere (mA) of 400…
If a radiograph is produced using a milliampere (mA) of 400 and 0.05 seconds, how should the exposure time be changed if the mA is decreased to 200?
Which of the following sets of factors would be associated w…
Which of the following sets of factors would be associated with a radiographic image possessing the greatest amount of focal spot blur?
Calculate the new mA required to maintain the same IR expo…
Calculate the new mA required to maintain the same IR exposure produced with the original values.
Which of the choices below does NOT increase contrast?
Which of the choices below does NOT increase contrast?
Which one of these grid ratios will absorb the most scattere…
Which one of these grid ratios will absorb the most scattered radiation?
A decubitus radiograph is acquired using 72 kilovoltage peak…
A decubitus radiograph is acquired using 72 kilovoltage peak (kVp), a 12:1 grid, 72 inch source-to-image distance (SID), 600 milliamperes (mA), and using automated exposure control (AEC). Which of these variable modifications will decrease the exposure time?
Elongation occurs when:
Elongation occurs when:
Grid ratio is represented by the formula:
Grid ratio is represented by the formula:
The anode heel effect is caused by:
The anode heel effect is caused by: