Radiation measuring units
Radiation measuring units Radiation in the air is a measure of radiation intensity. These measurements include exposure and the air KERMA. Radiation in tissue is a measure of the dose. These measurements include absorbed dose, equivalent dose, and effective dose. All of these measurements are different but related. Here's an example. If we wanted to, we could measure each of these values during a single x-ray exposure. The intensity of the x-ray beam is usually measured as the exposure or the air KERMA. These values tell us how much radiation is coming out of the x-ray tube and is directed at the patient. We could also use the air KERMA and exposure to measure the leakage radiation escaping the tube housing. The dose to the patient, or the radiography, or anyone is first measured as the absorbed dose. But then the absorbed dose can be calculated and converted into the equivalent dose. An equivalent dose can be converted into the effective dose. So why do we need these two categorie...