If the S-value equals 100, what can be inferred about the exposure?

When the S-value equals 100, it specifically indicates a relationship between digital exposure levels and the corresponding radiographic image quality. The S-value is an index used in digital imaging to assess exposure; in this case, an S-value of 100 suggests that the exposure is equivalent to that of 100-speed film, which is a standard reference point in radiography. Moreover, this exposure level corresponds to approximately 2 mR, which is considered a safe and acceptable dose for imaging procedures.

In the context of radiography, the S-value provides crucial information about the amount of exposure the image receptor has received, helping technologists adjust exposure settings appropriately. This relationship is foundational in ensuring that the images produced are of adequate quality while minimizing patient exposure. Therefore, an S-value of 100 suggests that the exposure is appropriately balanced, yielding a good-quality image without exceeding safe exposure levels.