What does an increase in milliampere-seconds (mAs) do to the radiograph?

An increase in milliampere-seconds (mAs) directly impacts the quantity of X-ray photons produced during an exposure. As mAs is a product of the tube current (in milliamperes) and the exposure time (in seconds), increasing either component results in a greater overall output of X-rays. This enhanced output leads to an increased number of X-ray photons reaching the radiographic film or detector, which in turn raises the overall image density. Higher density results in a darker appearance on the radiograph, effectively demonstrating greater exposure to radiation.

Understanding this relationship is crucial for radiologic technologists, as proper manipulation of mAs can help achieve optimal radiographic results, ensuring that images are neither too light nor too dark, which impacts diagnostic quality.