A decrease in kilovoltage will primarily result in which of the following?

A decrease in kilovoltage (kV) primarily reduces the energy of the x-ray photons produced during an imaging procedure, which significantly impacts receptor exposure. When kilovoltage is lowered, not only does the penetrative ability of the x-ray beam decrease, but the quantity of x-rays reaching the image receptor is also reduced. This results in a decrease in receptor exposure, meaning the image receptor receives less radiation, leading to a lighter or underexposed image.

This concept is crucial in understanding how technical settings affect image quality. Lower kV settings can enhance contrast but may compromise exposure levels, particularly if the imaging conditions do not compensate for this reduction in energy and quantity of x-rays. Proper adjustment of exposure factors is essential in radiographic procedures to ensure adequate visibility of anatomical structures.