The darkness of a film image is referred to as radiographic density.Given the three sets of mAs calculations that follow,all three should yield the same degree of radiographic density.
Exposure 1: 200 mA ´ 0.05 ms
Exposure 2: 100 mA ´ 0.10 ms
Exposure 3: 400 mA ´ 0.025 ms
This is known as

Question

Quizplus · Accepted Answer

Milliampere-seconds is the product of mA and time.Any combination of mA and time producing equivalent mAs values should produce equivalent exposures and therefore densities.This process is known as mAs reciprocity.

The Darkness of a Film Image Is Referred to as Radiographic