Orthovoltage x-ray machines have energies in the range of which of the following?

At what rate does the cobalt 60 source decay?

Calculate the wedge factor is if the dose with the wedge is 85 cGy and the dose without the wedge is 110 cGy.

On most linear accelerators, the isocenter distance is at ___; and on a cobalt-60 machine, the distance is at ___.

On a modern-day linear accelerator, how many jaws does a collimator have?

What is the Mayneord Factor for a patient who was originally treated at 100 cm SSD to a depth of 5 cm with a 10MV photon beam, but now needs to be treated at 110 SSD?

A patient is to be treated using a three-field prone pelvis SAD plan.  The lateral fields use wedges.  How many MUs will each lateral field receive if the prescribed dose is 180 cGy per fraction, the fields are equally weighted, have a wedge factor of 0.74, output of 0.90 cGy/MU, and TMR of 0.812?

Which of the following describes where the field size is defined in a non-isocentric approach?

Which of the following are considered when designing fields and beam arrangements?  (Select all that apply)

Which of the following represents the relationship between the dose and the PDD at a point?