What does an increase in mAs indicate about the quantity of x-rays produced?

An increase in mAs, which stands for milliampere-seconds, directly correlates with the quantity of x-rays produced during an exposure. The mAs value represents the product of the tube current (milliamperes) and the time of exposure (seconds). When either the tube current or the exposure time is increased, the total number of x-ray photons generated also increases.

This is essential to understand because a higher quantity of x-rays can improve the signal-to-noise ratio in imaging, resulting in a clearer image with better contrast and detail. Thus, when practicing fluoroscopy or any radiographic imaging, adjusting the mAs is a key factor in determining the exposure and, therefore, the overall quality of the produced images.