The measurement of the radiation that was incident on the image receptor for a particular exposure is known as?

• A. KIND
• B. KSTD
• C. Dose
• D. Kerma

Answer: (A)

The main idea here is distinguishing qualitative versus quantitative radiology quantities. The term you’re being asked to identify is the kind of radiation—the category or type of radiation present in the beam, such as X-ray photons. That’s a characterization of what the radiation is, not how much energy is delivered.

So, the measurement described is about identifying the radiation’s nature incident on the image receptor, which is described by its kind. In contrast, dose or kerma would refer to the amount of energy transferred or absorbed, not to the type of radiation. The other option isn’t a standard quantity for describing radiation type, so it isn’t the best fit.