When aiming to double the receptor exposure in radiography, what should be done with mAs?

To achieve double the receptor exposure in radiography, the milliampere-seconds (mAs) setting should be doubled. The mAs is a product of the tube current (measured in milliamperes) and the exposure time (in seconds), which directly relates to the quantity of x-rays produced during the exposure. By increasing the mAs, you increase the number of x-ray photons that reach the receptor, thereby doubling the receptor exposure.

This relationship is rooted in the principles of radiographic exposure, where receptor exposure is proportional to the amount of x-rays reaching the film or digital detector. Doubling the mAs effectively doubles the total exposure, leading to a brighter image or more developed film, depending on the context of the imaging technique being used.

Maintaining the mAs the same, halving it, or reducing it by a quarter would not achieve the goal of doubling the receptor exposure. These actions would either keep the exposure constant or decrease it, which would not meet the objective outlined in the question.