If the dose rate at 4 meters measures 100 mR and you want to reduce the distance to 1 meter with a 100 mR dose rate, how many mmPb would be needed (HVL = 3mm Pb).

What is the percent of error in the dose if a calibration is done at 97 cm SSD but the treatment is given at 100 cm SSD?

According the Law of Bergonie and Tribondeau, the sensitivity of tissues to radiation depends upon: Mitotic activity of the cells Oxygen depletion in the cells Differentiation of the cells Rate of cell division

Which of the following could be prescribed to a patient with diarrhea? Select 2.

What directs the beam during pencil beam scanning proton therapy treatments?

When working with setup lasers, one should worry about the effects to the:

What region of the head and neck is the base of tongue located?

Which power source in a linear accelerator will only amplify electromagnetic waves and is common on higher energy linacs?

What does the orange dot on student submission icons in grades indicate?

Students can view their min and max grade for the course once the final grade has been released.