Blog

The intensity of a high energy photon beam at any given distance from the source is:

Virchow’s node is located in the:

The V20 of the lung is:

In general, the best method for a radiation therapist to maintain medical asepsis and avoid the spread of infection is by frequent and proper:

The principal difference between an x-ray photon and a gamma ray is the:

According to the current NCRP recommendations, the guidance level for cumulative exposures should be calculated using the formula:

Which of the following is an example of a radioprotector?

The fractionation technique used to deliver a decrease in total dose, an increase in dose per fraction, and a decrease in the number of fractions over a standard time period is called:

The most common isotope used for interstitial breast treatment is:

The patient is positioned supine and is to be treated using an isocentric technique. The AP SSD reads 88 cm. and you move the isocenter 2 cm. posteriorly. What should the SSD read?